NumberResearchRecent thousands-block assignments
3 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, 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 |
|---|---|---|---|---|---|---|---|
| 2012-06-22 | 512-400-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7249 | BUDA | TX |
| 2012-06-22 | 512-571-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | AUSTIN | TX |
| 2012-06-22 | 512-813-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7249 | AUSTIN | TX |
| 2012-06-22 | 512-813-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7249 | AUSTIN | TX |
| 2012-06-15 | 512-655-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | AUSTIN | TX |
| 2012-06-15 | 512-655-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | AUSTIN | TX |
| 2012-06-15 | 512-655-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | AUSTIN | TX |
| 2012-06-15 | 512-655-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | AUSTIN | TX |
| 2012-06-15 | 512-655-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | AUSTIN | TX |
| 2012-06-15 | 512-813-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7249 | AUSTIN | TX |
| 2012-06-15 | 512-813-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7249 | AUSTIN | TX |
| 2012-06-13 | 512-309-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TX | 903C | TAYLOR | TX |
| 2012-06-13 | 512-400-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TX | 903C | BUDA | TX |
| 2012-06-13 | 512-746-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TX | 903C | JARRELL | TX |
| 2012-06-08 | 512-571-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2012-06-08 | 512-571-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2012-06-08 | 512-571-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2012-06-08 | 512-571-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2012-05-25 | 512-253-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | PAIGE | TX |
| 2012-05-24 | 512-605-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | AUSTIN | TX |
| 2012-05-24 | 512-605-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | AUSTIN | TX |
| 2012-05-17 | 512-546-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | DALE/LTNSP | TX |
| 2012-05-14 | 512-955-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7249 | TAYLOR | TX |
| 2012-05-09 | 512-540-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | LAMPASAS | TX |
| 2012-05-08 | 512-829-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7249 | DRIPPNGSPG | TX |
| 2012-05-08 | 512-842-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7249 | WIMBERLEY | TX |
| 2012-05-03 | 512-942-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | GEORGETOWN | TX |
| 2012-04-19 | 512-620-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | LOCKHART | TX |
| 2012-04-11 | 512-412-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | BASTROP | TX |
| 2012-04-11 | 512-654-0XXX | 0000–0999 | Assigned | SOUTHWESTERN BELL | 9533 | AUSTIN | TX |
| 2012-04-11 | 512-654-1XXX | 1000–1999 | Assigned | SOUTHWESTERN BELL | 9533 | AUSTIN | TX |
| 2012-04-11 | 512-654-2XXX | 2000–2999 | Assigned | SOUTHWESTERN BELL | 9533 | AUSTIN | TX |
| 2012-04-11 | 512-654-3XXX | 3000–3999 | Assigned | SOUTHWESTERN BELL | 9533 | AUSTIN | TX |
| 2012-04-11 | 512-654-4XXX | 4000–4999 | Assigned | SOUTHWESTERN BELL | 9533 | AUSTIN | TX |
| 2012-04-11 | 512-654-5XXX | 5000–5999 | Assigned | SOUTHWESTERN BELL | 9533 | AUSTIN | TX |
| 2012-04-11 | 512-654-6XXX | 6000–6999 | Assigned | SOUTHWESTERN BELL | 9533 | AUSTIN | TX |
| 2012-04-11 | 512-654-7XXX | 7000–7999 | Assigned | SOUTHWESTERN BELL | 9533 | AUSTIN | TX |
| 2012-04-11 | 512-654-8XXX | 8000–8999 | Assigned | SOUTHWESTERN BELL | 9533 | AUSTIN | TX |
| 2012-04-11 | 512-654-9XXX | 9000–9999 | Assigned | SOUTHWESTERN BELL | 9533 | AUSTIN | TX |
| 2012-04-11 | 512-655-0XXX | 0000–0999 | Assigned | SOUTHWESTERN BELL | 9533 | AUSTIN | TX |
| 2012-04-11 | 512-655-1XXX | 1000–1999 | Assigned | SOUTHWESTERN BELL | 9533 | AUSTIN | TX |
| 2012-04-09 | 512-605-6XXX | 6000–6999 | Assigned | PAETEC ITEL, LLC | 829J | AUSTIN | TX |
| 2012-04-03 | 512-808-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | AUSTIN | TX |
| 2012-04-03 | 512-808-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | AUSTIN | TX |
| 2012-04-03 | 512-815-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2012-03-21 | 512-738-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SAN MARCOS | TX |
| 2012-03-14 | 512-202-3XXX | 3000–3999 | Assigned | CSC VOICE, LLC | 612K | AUSTIN | TX |
| 2012-03-14 | 512-808-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | AUSTIN | TX |
| 2012-03-14 | 512-808-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | AUSTIN | TX |
| 2012-03-14 | 512-808-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | AUSTIN | 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.