NumberResearchRecent thousands-block assignments
3 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, last 30 days — NPA 512
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2003-04-18 | 512-203-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2003-04-18 | 512-203-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2003-04-17 | 512-275-1XXX | 1000–1999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7249 | AUSTIN | TX |
| 2003-04-08 | 512-237-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SMITHVILLE | TX |
| 2003-04-07 | 512-203-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2003-03-11 | 512-430-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | ROCKDALE | TX |
| 2003-02-11 | 512-213-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | LOCKHART | TX |
| 2003-01-23 | 512-365-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | TAYLOR | TX |
| 2002-11-22 | 512-234-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | BURNET | TX |
| 2002-11-22 | 512-234-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | BURNET | TX |
| 2002-11-22 | 512-234-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | BURNET | TX |
| 2002-11-01 | 512-564-1XXX | 1000–1999 | Assigned | SOUTHWESTERN BELL | 9533 | LAMPASAS | TX |
| 2002-10-18 | 512-697-5XXX | 5000–5999 | Assigned | SOUTHWESTERN BELL | 9533 | AUSTIN | TX |
| 2002-10-18 | 512-697-6XXX | 6000–6999 | Assigned | SOUTHWESTERN BELL | 9533 | AUSTIN | TX |
| 2002-10-04 | 512-853-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7249 | AUSTIN | TX |
| 2002-10-04 | 512-853-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7249 | AUSTIN | TX |
| 2002-10-04 | 512-853-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7249 | AUSTIN | TX |
| 2002-10-04 | 512-853-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7249 | AUSTIN | TX |
| 2002-10-04 | 512-853-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7249 | AUSTIN | TX |
| 2002-10-04 | 512-853-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7249 | AUSTIN | TX |
| 2002-10-04 | 512-853-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7249 | AUSTIN | TX |
| 2002-10-04 | 512-853-9XXX | 9000–9999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7249 | AUSTIN | TX |
| 2002-06-06 | 512-334-8XXX | 8000–8999 | Assigned | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 7516 | AUSTIN | TX |
| 2002-05-16 | 512-586-2XXX | 2000–2999 | Assigned | SOUTHWESTERN BELL | 9533 | AUSTIN | TX |
| 2002-05-07 | 512-380-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7249 | AUSTIN | TX |
| 2002-04-17 | 512-299-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TX | 903C | AUSTIN | TX |
| 2002-04-04 | 512-855-9XXX | 9000–9999 | Assigned | AT&T - LOCAL | 7421 | LOCKHART | TX |
| 2002-01-16 | 512-300-2XXX | 2000–2999 | Assigned | SOUTHWESTERN BELL | 9533 | AUSTIN | TX |
| 2001-10-23 | 512-670-1XXX | 1000–1999 | Assigned | SOUTHWESTERN BELL | 9533 | AUSTIN | TX |
| 2001-10-23 | 512-670-3XXX | 3000–3999 | Assigned | SOUTHWESTERN BELL | 9533 | AUSTIN | TX |
| 2001-08-02 | 512-228-3XXX | 3000–3999 | Assigned | SOUTHWESTERN BELL | 9533 | AUSTIN | TX |
| 2001-06-18 | 512-233-3XXX | 3000–3999 | Assigned | SOUTHWESTERN BELL | 9533 | AUSTIN | TX |
| 2001-06-18 | 512-233-4XXX | 4000–4999 | Assigned | SOUTHWESTERN BELL | 9533 | AUSTIN | TX |
| 2001-05-08 | 512-355-9XXX | 9000–9999 | Assigned | FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | 2154 | BERTRAM | TX |
| 2001-05-01 | 512-275-2XXX | 2000–2999 | Assigned | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 7516 | AUSTIN | TX |
| 2001-03-12 | 512-533-2XXX | 2000–2999 | Assigned | SOUTHWESTERN BELL | 9533 | AUSTIN | TX |
| 2001-03-12 | 512-533-3XXX | 3000–3999 | Assigned | SOUTHWESTERN BELL | 9533 | AUSTIN | TX |
| 2001-03-12 | 512-533-4XXX | 4000–4999 | Assigned | SOUTHWESTERN BELL | 9533 | AUSTIN | TX |
| 2001-03-12 | 512-533-5XXX | 5000–5999 | Assigned | SOUTHWESTERN BELL | 9533 | AUSTIN | TX |
| 2001-03-12 | 512-533-7XXX | 7000–7999 | Assigned | SOUTHWESTERN BELL | 9533 | AUSTIN | TX |
| 2001-03-12 | 512-533-8XXX | 8000–8999 | Assigned | SOUTHWESTERN BELL | 9533 | AUSTIN | TX |
| 2001-03-12 | 512-533-9XXX | 9000–9999 | Assigned | SOUTHWESTERN BELL | 9533 | AUSTIN | TX |
| 2001-03-12 | 512-691-1XXX | 1000–1999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | AUSTIN | TX |
| 2001-03-12 | 512-691-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | AUSTIN | TX |
| 2001-03-12 | 512-691-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | AUSTIN | TX |
| 2001-03-12 | 512-691-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | AUSTIN | TX |
| 2001-03-12 | 512-691-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | AUSTIN | TX |
| 2001-03-12 | 512-691-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | AUSTIN | TX |
| 2001-03-02 | 512-691-0XXX | 0000–0999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | AUSTIN | TX |
| 2001-01-29 | 512-782-1XXX | 1000–1999 | Assigned | SOUTHWESTERN BELL | 9533 | AUSTIN | 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.