References

Handset sources were accessed on September 16–17, 2026, and vendor evidence sources on September 17, 2026. The 56 Wi-Fi Alliance certificate links were accessed on October 2, 2026.

Each link to a Wayback Machine capture carries its own 14-digit capture timestamp. Two of the 321 vendor evidence rows cite a Wayback Machine index search instead, and those two links have no timestamp. FCC grant links point to fccid.io, a mirror of the FCC equipment-authorization database.

1. [S1] Verizon press, Hilton Head 4G LTE launch, April 2011 verizon.com/about/news/vzw/2011/04/pr2011-04-18a Archived copy
2. [S2] US Patent 8,831,592 (venue DAS multi-band example: 700/850/900/1900/2100) uspto.gov Accessed 2026-10-02.
3. [S3] WilsonPro/Zinwave arena case study (spec: 700 LTE, 850 CDMA, 1900 EVDO; later added 1900/2100 LTE) wilsonconnectivity.com/blog/why-das-solutions-are-key-to-reliable-cell-service-in-stadiums-and-arenas Archived copy Accessed 2026-10-01.
4. [S4] FierceWireless, "Verizon starts deploying LTE in its AWS spectrum," October 2013 fierce-network.com Archived copy Accessed 2026-10-02.
5. [S5] PhoneArena, Verizon PCS refarm NYC/Cleveland phonearena.com/news/...id63467 Archived copy Accessed 2026-10-02.
6. [S6] PhoneArena LTE band cheat sheet (AT&T B2/B4/B5/B12/B17/B29/B30/B66) phonearena.com/news/...id77933 Archived copy Accessed 2026-10-02.
7. [S7] S4GRU + Howard Forums, Sprint Network Vision B25/B26/B41 plan and timing s4gru.com; howardforums.com
8. [S8] Mobile Sports Report, "Super DAS Part 2" (UoP Stadium, February 2015; 4 carriers; 700 LTE + 800/850/1900/2100 LTE/CDMA/UMTS/EVDO; 228 remotes) mobilesportsreport.com Archived copy Accessed 2026-10-02.
9. [S9] Phone Scoop, "AT&T Finally Using WCS Spectrum for LTE," September 10, 2015 phonescoop.com/articles/article.php?a=16424 Archived copy Accessed 2026-10-01.
10. [S10] FirstNet Operations Manual 2026 (contract award March 2017; $7B; Band 14) firstnet.gov Archived copy Accessed 2026-10-02.
11. [S11] Urgent Communications, FirstNet B14 buildout >95% complete (2022) urgentcomm.com Archived copy Accessed 2026-10-02.
12. [S12] FirstNet Authority FY2023 Annual Report (initial buildout completed on time) firstnet.gov/newsroom Archived copy Accessed 2026-10-02.
13. [S13] Nextivity FirstNet in-building product page (B14 DAS/booster ecosystem) nextivityinc.com/solutions/firstnet Archived copy Accessed 2026-10-01.
14. [S14] Lexico, Band 14/FirstNet ERRCS guide lexicocom.com Accessed 2026-10-02.
15. [S15] ECSite, "C-Band Sweep Testing for DAS Networks" (3.7–3.98 GHz; legacy coax choices; sweep to 4.0 GHz) ecsite.ai Archived copy Accessed 2026-10-02.
16. [S16] ADRF press, SDRX-43-N77H upper C-band repeater, January 29, 2024 globenewswire syndication Archived copy Accessed 2026-10-02.
17. [S17] MCA/Airspan Everon 6000/6200 overview (C-band/CBRS-ready; formerly Corning) callmc.com/airspan-corning-everon-das Accessed 2026-10-01.
18. [S18] arXiv 2604.04371, stadium uplink measurement study (per-carrier band usage; DAS inference) arxiv.org Archived copy Accessed 2026-10-02.
19. [S19] Howard Forums B66 deployment thread (2016–2017 sightings) howardforums.com
20. [S20] T-Mobile press, first 600 MHz LTE sites, Cheyenne WY, August 2017 t-mobile.com/news/press/cheyenne-600-mhz Archived copy Accessed 2026-10-01.
21. [S21] Mobile World Live, 600 MHz in 586 cities by end-2017 mobileworldlive.com
22. [S22] T-Mobile press, 600 MHz in 1,250+ cities, September 10, 2018 t-mobile.com/news/press/600-mhz-update-puerto-rico Archived copy Accessed 2026-10-01.
23. [S23] CBRS Alliance/GlobeNewswire: FCC ICD authorization September 16, 2019; full commercial January 27, 2020 globenewswire.com Archived copy Accessed 2026-10-02.
24. [S24] RF Essentials Band 71 reference (B71 LTE 2017; n71 NR December 2019) rfessentials.com Accessed 2026-10-02.
25. [S25] FCC consumer guide, "Plan Ahead for Phase Out of 3G" (AT&T February 2022; Sprint CDMA March 31, 2022; Sprint LTE June 30, 2022; T-Mobile UMTS July 1, 2022; Verizon December 31, 2022) fcc.gov Archived copy Accessed 2026-10-02.
26. [S26] PhoneArena, T-Mobile delays Sprint CDMA sunset (DISH) phonearena.com/news/...id135931 Archived copy Accessed 2026-10-02.
27. [S27] Network Matter, Dali v. CommScope litigation roundup (ION-E, XRAN, TEKO, E-RAN as contemporaneous platforms) networkmatter.com Archived copy Accessed 2026-10-02.
28. [S28] MarketsandMarkets DAS industry profile (CommScope Era all-digital C-RAN DAS) marketsandmarkets.com Archived copy Accessed 2026-10-02.
29. [S29] The Network Installers, top DAS providers 2026 (Era divested to Amphenol February 2025; Everon under Airspan) thenetworkinstallers.com Archived copy Accessed 2026-10-02.
30. [S30] Cisco WLAN Passpoint config guide (Apple Hotspot 2.0 support from iOS 7) cisco.com Archived copy Accessed 2026-10-02.
31. [S31] Enea Passpoint solution page (iPhone R1 uncertified; WFA removed R2 in 2023 over Apple non-support) enea.com Archived copy Accessed 2026-10-02.
32. [S32] Resolution Wireless Passpoint explainer (R2 removal 2023, OSU rationale) resolutionwireless.com Accessed 2026-10-02.
33. [S33] Businesswire, "Airspan Announces Agreement to Acquire Corning's Wireless Business," February 20, 2025 businesswire.com/news/home/20250220572924 Archived copy Accessed 2026-10-02.
34. [S34] Airspan press, "Airspan Completes Acquisition of Corning's Wireless Business" (April 1, 2025) airspan.com/news Archived copy Accessed 2026-10-02.
35. [S35] Fierce Network, "Airspan scoops up Corning's wireless biz" (Everon/SpiderCloud names not transferred; Corning trademark, limited license) fierce-network.com Archived copy Accessed 2026-10-02.
36. [S36] Stadium Tech Report, "Corning sells DAS business to Airspan" (Corning DAS lineage = MobileAccess acquisition, 2011) stadiumtechreport.com Archived copy Accessed 2026-10-02.
37. [S37] FirstNet Authority history page (nationwide B14 buildout launch March 2018; Core delivered) firstnet.gov/about/history Archived copy Accessed 2026-10-01.
38. [S38] PRNewswire/AT&T, "Band 14 added to 2,500+ sites, 10,000+ in process," July 20, 2018 prnewswire.com Archived copy Accessed 2026-10-02.
39. [S39] Police1, "Understanding FirstNet" (B14 in 600+ markets by May 2019) police1.com Archived copy Accessed 2026-10-02.
40. [S40] Businesswire/CommScope IR, "CommScope Initiates a New 'Era' for In-building Wireless," February 13, 2018 (MWC 2018 launch) commscopeholdingcompanyinc.gcs-web.com Archived copy Accessed 2026-10-02.
41. [S41] RF Essentials, Band 77 reference (A-block live January 2022; remainder cleared December 2023; airport-adjacency phasing) rfessentials.com Accessed 2026-10-02.
42. [E] The vendor evidence (DAS systems page of this report) vendor datasheet/FCC evidence (321 dated rows, 2026-09-17); rows tagged [E] in the timeline data cite it

The rows that cite each URL follow it in brackets.

1. [S42] 3GPP TS 36.101, "E-UTRA; User Equipment (UE) radio transmission and reception," version 15.3.0 (ETSI TS 136 101 V15.3.0, October 2018), Table 5.5-1, E-UTRA operating bands etsi.org Archived copy Accessed 2026-10-02.
2. [S43] 3GPP TS 38.101-1, "NR; User Equipment (UE) radio transmission and reception; Part 1: Range 1 Standalone," version 16.7.0 (ETSI TS 138 101-1 V16.7.0, May 2021), Table 5.2-1, NR operating bands in FR1 etsi.org Archived copy Accessed 2026-10-02.
3. [S44] FCC, "Auction 107: 3.7 GHz Service" (280 megahertz in the 3.7–3.98 GHz band) fcc.gov Archived copy Accessed 2026-10-02.
4. [S45] Opensignal, "Quantifying the impact of C-band on 5G mobile experience in the US," March 29, 2022 insights.opensignal.com Archived copy Accessed 2026-10-02.
5. [S46] Android Open Source Project, "Passpoint (Hotspot 2.0)," last updated July 13, 2026 source.android.com Archived copy Accessed 2026-10-02.
6. [S47] FCC, "Broadband Personal Communications Service (PCS)" (G Block: 1910–1915 and 1990–1995 MHz) fcc.gov Archived copy Accessed 2026-10-02.
7. [S48] CNBC, Kif Leswing, "After years of 5G hype and investment, Wednesday's network launch makes it real" (Verizon and AT&T switch on C-band 5G), January 19, 2022 cnbc.com Archived copy Accessed 2026-10-02.
8. [S49] Apple Developer Documentation, "WiFi" (device management payload; Hotspot 2.0 keys marked "Available: iOS 7+") developer.apple.com Archived copy Accessed 2026-10-02.
9. [S50] Apple Newsroom, "iOS 7 With Completely Redesigned User Interface & Great New Features Available September 18," September 10, 2013 apple.com Archived copy Accessed 2026-10-02.
10. [S51] Android Developers Blog, Dave Burke, "Android 6.0 Marshmallow coming to devices soon," September 29, 2015 android-developers.googleblog.com Archived copy Accessed 2026-10-02.
11. [S52] Android Developers Blog, Stephanie Cuthbertson, "Turning it up to 11: Android 11 for developers," September 8, 2020 android-developers.googleblog.com Accessed 2026-10-02.
12. [S53] comScore, "comScore Reports December 2012 U.S. Smartphone Subscriber Market Share" (Apple 36.3% of US smartphone subscribers), February 6, 2013 comscore.com Archived copy Accessed 2026-10-02.
13. [S54] comScore, "comScore Reports February 2016 U.S. Smartphone Subscriber Market Share" (Apple 43.9% of US smartphone subscribers), April 6, 2016 comscore.com Archived copy Accessed 2026-10-02.
14. [S55] Counterpoint Research, "Top 5 Smartphone Models Share For 8 Countries" (updated page; USA monthly and quarterly sales share of the top five models) counterpointresearch.com Archived copy Accessed 2026-10-02.
15. [S56] Counterpoint Research, Jeff Fieldhack, "Q3 2017: USA: Apple Leads While Moto Makes a Comeback" (USA top-selling smartphone models, Q3 2017), November 11, 2017 counterpointresearch.com Archived copy Accessed 2026-10-02.
16. [S57] Kantar Worldpanel ComTech, "Galaxy S7 cracks Top 5 for the quarter in the US" (Galaxy S7 and S7 edge 5.8% of US smartphone sales, Q1 2016), May 11, 2016 kantarworldpanel.com Archived copy Accessed 2026-10-02.
17. [S58] Engadget, Daniel Cooper, "NPD: Apple, Samsung control 55 percent of the smartphone market, prepaid sales up 91 percent" (reprints The NPD Group's release; US brand sales shares, Q2 2012), August 8, 2012 engadget.com Archived copy Accessed 2026-10-02.
18. [S59] Wi-Fi Alliance, "Product Finder" (certification records, searchable by model number) wi-fi.org Archived copy Accessed 2026-10-02.

The study’s datasets as CSV files, cleaned for publication: notes that named the author’s working files, logs or people are rewritten in plain language, as in the report. Each file lists its columns.

• Handset dataset handsets.csv · CSV, 100 rows, 99 KB

  The 100 US-SKU handsets in the study, one row per device, with the bands of each US SKU, the four Passpoint layers, a 2026 service note and the sources for the row. Device ids and the band, SKU and source fields match the handset table. The table writes the flag words in sentence case (Yes, No, Capable); this file keeps the author's forms: YES and lowercase no in the band columns, and YES, CAPABLE or NO in the pp_os column.

  30 columns

  Column	What it holds
  device_id	Device id used across the report (c001 to c124; the numbering has gaps).
  era	Release era used to select the cohort, 20 devices each, from 2010-2012 to 2024-2026.
  brand	Manufacturer.
  model	Model name, with the carrier or market of the recorded SKU where it matters.
  us_sku	US model number the bands were recorded for, with the author's qualifier where the SKU match was uncertain.
  fcc_id	FCC ID of the recorded SKU, marked (probable) where the match is not certain; empty where no FCC ID was resolved.
  release_date	US release month (YYYY-MM).
  chipset	Chipset as listed by GSMArena; empty for four devices.
  bands_2g	GSM and CDMA bands listed for the SKU.
  bands_3g	HSPA and CDMA2000 bands listed for the SKU.
  bands_4g	LTE bands of the US SKU, with the source tier in brackets where recorded. The handset table shows this column as LTE bands.
  bands_5g	NR bands of the US SKU. The handset table shows this column as NR bands.
  b2	Band 2 (PCS 1900): LTE, LTE/NR, 3G only or 2G only.
  b4	Band 4 (AWS-1): LTE, 3G only or no.
  b5	Band 5 (850 MHz): LTE, LTE/NR or 3G only.
  b12_13_17	Which of the 700 MHz bands 12, 13 and 17 the SKU supports, each kept distinct.
  b14	Band 14 (FirstNet 700 MHz): YES or no.
  b66	Band 66 (AWS-1 and AWS-3 with the extension blocks): YES or no.
  b71	Band 71 (600 MHz): YES or no.
  n41	NR n41 (2.5 GHz): YES or no, noting LTE B41 where the device has it without n41.
  n77	NR n77 (C-band): YES or no.
  pref_bands_modern	Capacity layers the device has among n77, n41/B41, n71/B71, B66, B30 and B14, which the scoring rule calls its preferred layers; n/a or none beyond DAS-era where it has none.
  wifi_standard	Wi-Fi standards and features as listed by GSMArena.
  pp_silicon	Passpoint silicon layer: yes for 802.11n-or-later Wi-Fi, otherwise pre-HS2.0-cert era.
  pp_os	Passpoint OS layer: YES, CAPABLE or NO, with the OS-version reasoning. The handset table shows this column as Passpoint (OS layer).
  pp_wfa_cert	Wi-Fi Alliance certification layer: the certificate id and date where Passpoint is certified, the Product Finder result and query otherwise, or n/a for Apple.
  pp_enabled	Passpoint enablement layer as recorded (dependence on carrier or OEM profiles). Enablement at a venue is not measured.
  das_service_level_2026	The author's note on the service the device would get in 2026 from a DAS that passes only the 2011 bands. It is descriptive and separate from the scoring model, whose results are in the model curves.
  notes	The author's notes on sources, SKU choice, disagreements between sources, flagged cells and the FCC-grant adjudications applied on 2026-09-17; empty where there are none.
  sources	Source URLs for the row, separated by semicolons: GSMArena, Apple, Google or Samsung specification pages, frequencycheck, fccid.io grants and Wi-Fi Alliance Product Finder searches.

• Handset selection list handset-selection.csv · CSV, 100 rows, 15 KB

  Why each of the 100 handsets was chosen: a cited US or global best-seller ranking where one was found, or an archetype (flagship, mid or prepaid) otherwise. The selection_source column says which.

  8 columns

  Column	What it holds
  device_id	Device id, as in the handset dataset.
  era	Release era.
  brand	Manufacturer.
  model	Model name.
  expected_us_sku	US SKU expected at selection. The handset dataset records the SKU finally used, which differs for 19 devices.
  tier	Archetype tier: flagship, mid or budget.
  selection_basis	The ranking or reason the device was selected.
  selection_source	URL of the cited ranking; archetype-fill where the device fills an archetype without a cited ranking; or the unpublished study document that named it.

• DAS capability timeline das-timeline.csv · CSV, 48 rows, 11 KB

  For each year from 2011 to 2026 and each of the three upgrade tracks, the bands a neutral-host DAS passes and the technologies the carriers still transmit. Rows tagged [E] rest on the vendor evidence; the year-by-band grid on the DAS systems page is drawn from the bands_passed column.

  7 columns

  Column	What it holds
  year	Year.
  track	Upgrade track: A = never upgraded since 2011; B = typical venue; C = actively maintained.
  bands_passed	Bands the plant passes that year, separated by semicolons. A qualifier in parentheses says how the band is passed; qualifiers such as partial, early, beginning, retrofit, pilot, flagship, venues and passive-only mark a band the model counts as partially passed.
  techs_served	Technologies the carriers still transmit that year, separated by semicolons. 3G ends in 2022.
  notes	The author's notes on the year and track. [E] marks a statement that rests on the vendor evidence.
  sources	Timeline sources for the row, separated by semicolons: S1 to S41 and E, listed in section A of the References page.
  tagged_e	yes where the row carries an [E] tag and cites source E; no otherwise.

• Vendor evidence das-evidence.csv · CSV, 321 rows, 165 KB

  The 321 dated rows of DAS vendor evidence for six vendor families: 311 archived vendor documents or FCC equipment-authorization grants and filings, and 10 live vendor or distributor documents or Wayback Machine index searches. Row ids and text match the vendor evidence tables on the DAS systems page.

  12 columns

  Column	What it holds
  id	Row id, as used on the DAS systems page.
  vendor_group	Vendor family table the row appears in on the DAS systems page.
  vendor	Vendor or FCC grantee as recorded by the author.
  platform	Product platform.
  sku_or_document	SKU, grant or document the row records.
  date	Date the row records (YYYY-MM-DD, YYYY-MM or YYYY). For some archived documents this is the document's own date rather than the capture date, which is the 14-digit timestamp in source_url.
  date_precision	Precision of the date: day, month or year.
  source_url	The cited record: a Wayback Machine capture, an fccid.io grant or grantee listing, a live vendor or distributor URL, or, for 2 rows, a Wayback Machine index search.
  passband_low_mhz	Lower edge of the passband the source states, in MHz; empty where the source gives no numeric passband. Edges from FCC grants are transmit ranges.
  passband_high_mhz	Upper edge of the passband the source states, in MHz; empty where the source gives no numeric passband.
  bands_added_since_prior	Bands the row adds relative to the vendor's previous dated row.
  notes	The author's notes on the row.

• Model curves by scenario model-curves.csv · CSV, 384 rows, 45 KB

  The scoring model's yearly results for 2011 to 2026 for each DAS track, under the base case and the seven sensitivity scenarios. Unless a column says otherwise, values are weighted shares of US phones in use, from 0 to 1.

  25 columns

  Column	What it holds
  scenario	Base case, or one of the seven scenarios in the Sensitivity table: Equal weights within era, Mean life 3 years, Mean life 5 years, Track B upgrades 2 years earlier, Track B upgrades 2 years later, OEM-share weights only, Weibull survival.
  track	Upgrade track: A = never upgraded since 2011; B = typical venue; C = actively maintained.
  year	Year.
  n_devices	Cohort devices in the population that year (released by that year), a count.
  pop_weight	Sum of the population weights that year, in the model's relative units.
  spectrum_match	Spectrum-match index: the share of the devices' usable US downlink spectrum that the plant passes, over LTE/NR-capable devices.
  served	Share that attaches and gets service on at least one live band (native, partial, degraded or 3G/voice fallback).
  served_lte_nr	Share served on LTE or NR (native, partial or degraded).
  native	Share whose preferred capacity layers are all fully passed.
  partial	Share with at least one preferred layer passed or partially passed.
  degraded	Share with a usable LTE/NR band on the plant but none of its preferred layers.
  fallback3g	Share with no usable LTE/NR band that falls back to 3G while 3G is still transmitted.
  unserved	Share not served.
  pp_silicon	Share with Passpoint-capable silicon; filled on Track B rows only, because the device layers do not depend on the track.
  pp_os	Share whose OS can join a Passpoint network (ready for data, an upper bound); filled on Track B rows only, because the device layers do not depend on the track.
  pp_os_ios	Share of iPhones in use that are Passpoint OS-capable; filled on Track B rows only, because the device layers do not depend on the track.
  pp_os_android	Share of Android and other non-Apple phones in use that are Passpoint OS-capable; filled on Track B rows only, because the device layers do not depend on the track.
  pp_cert	Share with a Wi-Fi Alliance Passpoint certificate; filled on Track B rows only, because the device layers do not depend on the track.
  pp_cert_android	Share of non-Apple phones in use with a Wi-Fi Alliance Passpoint certificate; filled on Track B rows only, because the device layers do not depend on the track.
  pp_enabled	Share the handset dataset's enablement layer classes as enabled by a carrier or OEM profile. Venue enablement is not measured, so this is not a measurement of it; filled on Track B rows only, because the device layers do not depend on the track.
  wfc_os	Share whose OS supports Wi-Fi Calling; filled on Track B rows only, because the device layers do not depend on the track.
  wfc_any	Share with Wi-Fi Calling listed by at least one US carrier (the loose test); filled on Track B rows only, because the device layers do not depend on the track.
  wfc_all3	Share with Wi-Fi Calling enabled by every carrier the SKU is sold for, which is all three national carriers for unlocked and multi-carrier SKUs and iPhones (the strict voice-ready test); filled on Track B rows only, because the device layers do not depend on the track.
  wifidas_ready_strict	Share ready for both data and voice: Passpoint OS-capable and voice-ready on the strict test; filled on Track B rows only, because the device layers do not depend on the track.
  wifidas_ready_loose	Share Passpoint OS-capable and voice-ready on the loose test; filled on Track B rows only, because the device layers do not depend on the track.

• Readiness split by year readiness-split.csv · CSV, 32 rows, 2 KB

  Year by year, the shares of US phones in use ready for data, for voice, for both and for neither, the share with any voice path, and readiness for both by phone age. Given for the base case and for the equal-weights scenario.

  10 columns

  Column	What it holds
  scenario	Base case or Equal weights within era.
  year	Year.
  data_ready_passpoint	Share Passpoint OS-capable (ready for data).
  voice_ready_wfc_strict	Share voice-ready on the strict Wi-Fi Calling test.
  both	Share ready for both.
  neither	Share ready for neither.
  voice_path_wfc_or_das	Share with a voice path: voice-ready on the strict Wi-Fi Calling test, or served by the Track B DAS.
  both_phones_le2yr	Share ready for both among phones two years old or newer.
  both_phones_gt2yr	Share ready for both among phones older than two years; empty in 2011, when the population has no older phones.
  share_le2yr	Share of phones in use that are two years old or newer.

• Readiness by release year readiness-by-release-year.csv · CSV, 17 rows, 1 KB

  For each release year, the number of cohort devices and how many of them are ready for data, for voice and for both as of 2026. The counts are of devices, not weighted.

  5 columns

  Column	What it holds
  release_year	Release year.
  n_devices	Cohort devices released that year.
  data_ready_passpoint	Devices Passpoint OS-capable by 2026.
  voice_ready_wfc_strict	Devices voice-ready on the strict Wi-Fi Calling test by 2026.
  both	Devices ready for both by 2026.

• Market-weight dataset market-weights.csv · CSV, 941 rows, 445 KB

  The base-case market weight for each device in each year it is in the population, with the evidence level, the estimated US sales share it rests on, its sources and the author's derivation. Weights are scaled so that the mean weight within each era is 1.

  7 columns

  Column	What it holds
  device_id	Device id, as in the handset dataset.
  year	Year.
  weight	Market weight. It is constant across a device's years; the survival curve does the aging.
  basis	Evidence level: per_model_us (a published US all-market sales share inside the launch window), per_model_carried (a US share carried from within two years, or a DeviceAtlas traffic share converted to sales), mix_x_oem (a within-OEM model-mix share multiplied by the OEM's US share), oem_fill (the OEM's US share split equally across its cohort devices in the era).
  share_estimate_pct	Estimated share of US smartphone sales in the device's launch window, in percent.
  sources	Source URLs, separated by semicolons.
  note	The author's derivation and caveats. FLAG marks the brand-share fills most likely to be wrong.

• OEM-share and survival sources weight-sources.csv · CSV, 467 rows, 292 KB

  The source rows behind the OEM-share weights and the survival assumptions: OEM and platform shares of US sales, subscribers and web traffic, device-age and replacement-cycle figures, and market context. Each row gives its source, access date and tier.

  11 columns

  Column	What it holds
  metric	What the value measures; brand or platform after a colon where the metric is a share.
  year_or_period	Year, quarter or period the value refers to.
  value	The value as published.
  unit	Unit of the value.
  geography	Geography the value covers.
  source_org	Publishing organization.
  source_title	Title of the source.
  url	Source URL.
  access_date	Date the source was accessed.
  tier	Source tier as labeled by the author: Tier 2, Tier 3 or Tier n/a.
  note	The author's notes on the row.

• Wi-Fi Calling support dataset wifi-calling-support.csv · CSV, 100 rows, 106 KB

  For each of the 100 devices, Wi-Fi Calling support at the OS level and the first archived listing at each US carrier, with source URLs, the carriers the SKU is sold for, the strict voice-ready year and a confidence level. Support years are the later of device release and carrier launch; first-listed dates are first archived captures and so are upper bounds.

  19 columns

  Column	What it holds
  device_id	Device id, as in the handset dataset.
  us_sku	SKU the support records refer to.
  wfc_os_version	OS version from which the OS supports Wi-Fi Calling, or none; empty where not recorded.
  wfc_os_year	Year of that OS support.
  wfc_os_url	Source for the OS-level support.
  att_first_listed	AT&T: month of the first archived listing (YYYY-MM), or not enabled, not_found, predates launch or n/a (not an AT&T SKU).
  att_url	AT&T source URL.
  vzw_first_listed	Verizon: first archived listing, coded as for AT&T.
  vzw_url	Verizon source URL.
  tmo_first_listed	T-Mobile: first archived listing, coded as for AT&T.
  tmo_url	T-Mobile source URL.
  sprint_first_listed	Sprint: first archived listing, coded as for AT&T.
  sprint_url	Sprint source URL.
  any_carrier_first_year	First year any US carrier supports Wi-Fi Calling on the device (the loose test).
  all_major_carriers_year	First year AT&T, Verizon and T-Mobile all support it.
  own_carriers_year	First year every carrier the SKU is sold for supports it (the strict voice-ready test); empty if that never happens.
  confidence	confirmed, probable or not_found.
  sku_carrier_scope	Carriers the SKU is sold for: att, vzw, tmo and sprint, separated by slashes.
  note	The author's notes on the evidence for each carrier.

• Wi-Fi Alliance certification checks wifi-alliance-certification.csv · CSV, 69 rows, 24 KB

  Wi-Fi Alliance Product Finder checks for the 69 non-Apple devices, searched by OEM model number: whether the device is listed, whether Passpoint is certified, and the certificate.

  11 columns

  Column	What it holds
  device_id	Device id, as in the handset dataset.
  us_sku	US SKU of the device.
  query_used	Model number searched in the Product Finder.
  wfa_listed	Whether the Product Finder lists the device: yes, no or not_found.
  passpoint_certified	Whether a listing certifies Passpoint: yes, no or unknown.
  passpoint_release	Passpoint release certified (R1 or R2).
  cert_date	Date of the certificate cited (YYYY-MM-DD).
  cert_id	Wi-Fi Alliance certificate id cited.
  wfa_url	The Product Finder search used. It is a search, not a record page.
  certificate_url	The Wi-Fi Alliance certificate (PDF) for cert_id at cert_date, where the device has one. Added on publication; the author's file has only the search link.
  note	The author's notes on the search and the matching records.

Where sources disagreed, both readings were recorded, and the report states how each was handled. Evidence gaps are accepted and stated in the main report’s caveats (see Caveats and open items), and real per-SKU differences keep both values.

Where an FCC grant contradicted the Tier 2 value, the band flag was changed to follow the grant:

• Galaxy A12 B71/B41
• Galaxy S21 n77/n48
• Galaxy A14 5G B71/n71
• OnePlus Nord N200 n77/n5
• Galaxy S24 Ultra n77
• Galaxy A25 5G B14/B30
• Galaxy A35 5G B71/n71

These cells hold the flagged working value:

• Galaxy S24 (base model) n77
• Galaxy A16 5G B14/n77
• Galaxy J3 (2016) B30
• Galaxy A10e B14/B30
• Galaxy S7 B13/B17
• Pixel 3 B30
• Moto G (3rd gen) 700 MHz: B12, B17 or none
• iPhone 6 Plus B13: Apple lists it, and the FCC grant does not
• Galaxy Prevail 2G bands

Three questions remain on the evidence side:

• ADRF PCS G-block uplink: the grants disagree with a 2017 web page.
• Corning’s “C-band ready” claim in 2021 against its first granted module in 2024; the report uses 2024.
• FCC grantee-listing dates are upper bounds; this affects all Corning and most SOLiD and TE FCC rows.