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
Jul 2026
Jun 2026
May 2026
Apr 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2008-12-05 | 210-644-9XXX | 9000–9999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2008-11-25 | 210-395-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SANANTONIO | TX |
| 2008-11-25 | 210-418-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SANANTONIO | TX |
| 2008-11-25 | 210-527-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SANANTONIO | TX |
| 2008-11-24 | 210-374-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SANANTONIO | TX |
| 2008-11-24 | 210-374-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SANANTONIO | TX |
| 2008-11-20 | 210-853-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SANANTONIO | TX |
| 2008-11-20 | 210-853-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SANANTONIO | TX |
| 2008-11-20 | 210-853-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SANANTONIO | TX |
| 2008-11-20 | 210-853-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SANANTONIO | TX |
| 2008-11-14 | 210-384-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | SANANTONIO | TX |
| 2008-11-12 | 210-792-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | SANANTONIO | TX |
| 2008-10-24 | 210-619-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SANANTONIO | TX |
| 2008-10-24 | 210-619-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SANANTONIO | TX |
| 2008-10-24 | 210-619-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SANANTONIO | TX |
| 2008-10-21 | 210-338-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | SANANTONIO | TX |
| 2008-10-21 | 210-461-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SANANTONIO | TX |
| 2008-10-21 | 210-485-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SANANTONIO | TX |
| 2008-10-21 | 210-485-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SANANTONIO | TX |
| 2008-10-21 | 210-957-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SANANTONIO | TX |
| 2008-10-21 | 210-957-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SANANTONIO | TX |
| 2008-10-21 | 210-957-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SANANTONIO | TX |
| 2008-10-15 | 210-853-1XXX | 1000–1999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2008-10-13 | 210-853-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SANANTONIO | TX |
| 2008-10-13 | 210-853-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SANANTONIO | TX |
| 2008-10-08 | 210-384-4XXX | 4000–4999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SANANTONIO | TX |
| 2008-09-30 | 210-409-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SANANTONIO | TX |
| 2008-09-30 | 210-409-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SANANTONIO | TX |
| 2008-09-30 | 210-409-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SANANTONIO | TX |
| 2008-09-30 | 210-409-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SANANTONIO | TX |
| 2008-08-27 | 210-461-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2008-08-27 | 210-461-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2008-08-27 | 210-461-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2008-08-27 | 210-461-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2008-08-13 | 210-246-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | SANANTONIO | TX |
| 2008-08-07 | 210-870-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | SANANTONIO | TX |
| 2008-08-04 | 210-418-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2008-08-04 | 210-418-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2008-07-30 | 210-251-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2008-07-30 | 210-251-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2008-07-23 | 210-395-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SANANTONIO | TX |
| 2008-07-23 | 210-395-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SANANTONIO | TX |
| 2008-07-23 | 210-395-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SANANTONIO | TX |
| 2008-07-18 | 210-591-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | SANANTONIO | TX |
| 2008-07-14 | 210-376-2XXX | 2000–2999 | Assigned | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 8434 | SANANTONIO | TX |
| 2008-07-14 | 210-376-3XXX | 3000–3999 | Assigned | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 8434 | SANANTONIO | TX |
| 2008-07-14 | 210-376-4XXX | 4000–4999 | Assigned | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 8434 | SANANTONIO | TX |
| 2008-07-14 | 210-376-5XXX | 5000–5999 | Assigned | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 8434 | SANANTONIO | TX |
| 2008-07-14 | 210-376-6XXX | 6000–6999 | Assigned | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 8434 | SANANTONIO | TX |
| 2008-07-08 | 210-853-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | 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.