NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.
Most active assignees, all time — NPA 850
New assignments by month
Sep 2026
Aug 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2016-10-10 | 850-781-1XXX | 1000–1999 | Assigned | AT&T ENTERPRISES, LLC | 516C | PACE | FL |
| 2016-07-29 | 850-204-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HOLLEYNVRR | FL |
| 2016-07-22 | 850-361-1XXX | 1000–1999 | Assigned | AT&T ENTERPRISES, LLC | 516C | PENSACOLA | FL |
| 2016-06-22 | 850-665-9XXX | 9000–9999 | Assigned | AT&T ENTERPRISES, LLC | 516C | MILTON | FL |
| 2016-06-07 | 850-203-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | GULFBREEZE | FL |
| 2014-08-12 | 850-760-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | PENSACOLA | FL |
| 2013-12-18 | 850-857-9XXX | 9000–9999 | Assigned | AT&T ENTERPRISES, LLC | 516C | PENSACOLA | FL |
| 2013-01-23 | 850-360-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | GRACEVILLE | FL |
| 2013-01-23 | 850-388-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | VERNON | FL |
| 2013-01-23 | 850-397-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SUNNYHILLS | FL |
| 2013-01-23 | 850-753-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | YONGSTFNTN | FL |
| 2012-11-15 | 850-571-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | LYNN HAVEN | FL |
| 2012-11-15 | 850-616-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HAVANA | FL |
| 2012-01-19 | 850-252-6XXX | 6000–6999 | Assigned | AT&T ENTERPRISES, LLC | 516C | PANAMACITY | FL |
| 2012-01-17 | 850-708-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | PNAMACYBCH | FL |
| 2011-12-19 | 850-366-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | CENTURY | FL |
| 2011-09-02 | 850-600-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | CHIPLEY | FL |
| 2011-06-16 | 850-465-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | PENSACOLA | FL |
| 2011-02-14 | 850-783-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | MUNSON | FL |
| 2009-12-22 | 850-752-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | JAY | FL |
| 2009-09-01 | 850-679-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | CANTONMENT | FL |
| 2009-08-25 | 850-665-4XXX | 4000–4999 | Assigned | AT&T ENTERPRISES, LLC | 516C | MILTON | FL |
| 2009-08-25 | 850-710-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HOLLEYNVRR | FL |
| 2009-05-22 | 850-733-9XXX | 9000–9999 | Assigned | AT&T ENTERPRISES, LLC | 516C | GULFBREEZE | FL |
| 2009-05-22 | 850-910-4XXX | 4000–4999 | Assigned | AT&T ENTERPRISES, LLC | 516C | PACE | FL |
| 2009-05-13 | 850-542-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | PENSACOLA | FL |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.