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 210
New assignments by month
Sep 2026
Aug 2026
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Jun 2026
May 2026
Apr 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2015-08-26 | 210-552-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SANANTONIO | TX |
| 2015-08-20 | 210-975-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2015-08-20 | 210-975-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2015-08-20 | 210-975-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2015-08-20 | 210-975-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2015-08-20 | 210-975-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2015-08-20 | 210-975-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2015-08-20 | 210-975-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2015-08-20 | 210-975-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2015-08-20 | 210-975-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2015-08-20 | 210-975-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2015-08-20 | 210-984-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2015-08-20 | 210-984-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2015-08-20 | 210-984-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2015-08-20 | 210-984-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2015-08-20 | 210-984-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2015-08-20 | 210-984-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2015-08-20 | 210-984-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2015-08-20 | 210-984-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2015-08-20 | 210-984-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2015-08-20 | 210-984-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2015-08-17 | 210-600-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TX | 903C | SANANTONIO | TX |
| 2015-08-17 | 210-600-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TX | 903C | SANANTONIO | TX |
| 2015-08-17 | 210-600-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TX | 903C | SANANTONIO | TX |
| 2015-08-17 | 210-600-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TX | 903C | SANANTONIO | TX |
| 2015-08-14 | 210-941-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2015-08-14 | 210-941-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2015-08-14 | 210-941-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2015-08-14 | 210-941-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2015-08-14 | 210-941-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2015-07-21 | 210-941-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TX | 903C | SANANTONIO | TX |
| 2015-07-21 | 210-941-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TX | 903C | SANANTONIO | TX |
| 2015-07-21 | 210-941-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TX | 903C | SANANTONIO | TX |
| 2015-07-21 | 210-941-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TX | 903C | SANANTONIO | TX |
| 2015-07-21 | 210-941-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | SANANTONIO | TX |
| 2015-07-01 | 210-971-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SANANTONIO | TX |
| 2015-07-01 | 210-971-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SANANTONIO | TX |
| 2015-07-01 | 210-971-9XXX | 9000–9999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SANANTONIO | TX |
| 2015-06-29 | 210-971-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | SANANTONIO | TX |
| 2015-06-29 | 210-971-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | SANANTONIO | TX |
| 2015-06-10 | 210-929-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2015-06-10 | 210-929-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2015-06-10 | 210-929-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2015-06-10 | 210-929-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2015-06-10 | 210-929-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2015-06-10 | 210-929-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2015-06-10 | 210-929-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2015-06-10 | 210-929-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2015-06-10 | 210-929-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2015-06-10 | 210-929-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | 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.