NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
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 214
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2016-06-27 | 214-430-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | FRISCO | TX |
| 2016-06-16 | 214-903-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | WAXAHACHIE | TX |
| 2014-09-17 | 214-238-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | DALLAS | TX |
| 2014-09-17 | 214-238-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | DALLAS | TX |
| 2014-09-04 | 214-304-6XXX | 6000–6999 | Assigned | AT&T ENTERPRISES, LLC | 516C | ROCKWALL | TX |
| 2014-06-10 | 214-305-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | PROSPER | TX |
| 2013-08-01 | 214-973-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | MCKINNEY | TX |
| 2013-06-25 | 214-579-9XXX | 9000–9999 | Assigned | AT&T ENTERPRISES, LLC | 516C | DALLAS | TX |
| 2011-07-14 | 214-856-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | MCKINNEY | TX |
| 2010-08-05 | 214-856-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | MCKINNEY | TX |
| 2010-07-01 | 214-463-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | WAXAHACHIE | TX |
| 2010-05-07 | 214-494-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | FRISCO | TX |
| 2009-11-24 | 214-935-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | ANNA | TX |
| 2009-11-03 | 214-842-4XXX | 4000–4999 | Assigned | AT&T ENTERPRISES, LLC | 516C | MCKINNEY | TX |
| 2009-04-15 | 214-613-6XXX | 6000–6999 | Assigned | AT&T ENTERPRISES, LLC | 516C | DALLAS | TX |
| 2005-07-13 | 214-434-1XXX | 1000–1999 | Assigned | AT&T ENTERPRISES, LLC | 516C | DALLAS | TX |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.