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 210
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
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Dec 2025
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2005-05-24 | 210-621-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SANANTONIO | TX |
| 2005-05-24 | 210-621-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SANANTONIO | TX |
| 2005-05-24 | 210-621-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SANANTONIO | TX |
| 2005-05-24 | 210-621-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SANANTONIO | TX |
| 2005-05-24 | 210-621-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SANANTONIO | TX |
| 2005-05-12 | 210-745-0XXX | 0000–0999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SANANTONIO | TX |
| 2005-05-12 | 210-745-1XXX | 1000–1999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SANANTONIO | TX |
| 2005-05-12 | 210-745-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SANANTONIO | TX |
| 2005-05-12 | 210-745-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SANANTONIO | TX |
| 2005-05-12 | 210-745-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SANANTONIO | TX |
| 2005-05-12 | 210-745-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SANANTONIO | TX |
| 2005-04-25 | 210-577-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2005-04-25 | 210-577-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2005-04-25 | 210-787-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | SANANTONIO | TX |
| 2005-04-25 | 210-787-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | SANANTONIO | TX |
| 2005-04-25 | 210-787-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | SANANTONIO | TX |
| 2005-04-25 | 210-787-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | SANANTONIO | TX |
| 2005-04-25 | 210-787-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | SANANTONIO | TX |
| 2005-04-20 | 210-324-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2005-04-20 | 210-324-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2005-04-20 | 210-324-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2005-04-20 | 210-324-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2005-04-20 | 210-324-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2005-04-20 | 210-324-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2005-04-20 | 210-324-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2005-04-20 | 210-324-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2005-04-20 | 210-412-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2005-04-20 | 210-412-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2005-04-20 | 210-412-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2005-04-19 | 210-557-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | SANANTONIO | TX |
| 2005-04-19 | 210-557-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | SANANTONIO | TX |
| 2005-04-14 | 210-388-0XXX | 0000–0999 | Assigned | XO TEXAS, INC. | 8958 | SANANTONIO | TX |
| 2005-04-13 | 210-677-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2005-04-08 | 210-687-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2005-03-29 | 210-621-6XXX | 6000–6999 | Assigned | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 8434 | SANANTONIO | TX |
| 2005-03-29 | 210-818-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2005-03-29 | 210-818-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2005-03-29 | 210-818-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2005-03-24 | 210-454-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2005-03-24 | 210-454-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2005-03-23 | 210-471-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2005-03-23 | 210-878-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2005-03-23 | 210-878-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2005-03-23 | 210-878-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2005-03-23 | 210-878-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2005-03-21 | 210-845-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | SANANTONIO | TX |
| 2005-03-21 | 210-878-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | SANANTONIO | TX |
| 2005-03-18 | 210-324-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SANANTONIO | TX |
| 2005-03-18 | 210-324-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SANANTONIO | TX |
| 2005-03-18 | 210-412-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SANANTONIO | TX |
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.