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 |
|---|---|---|---|---|---|---|---|
| 2007-08-23 | 512-373-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2007-08-23 | 512-373-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2007-08-23 | 512-373-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2007-08-23 | 512-579-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2007-08-23 | 512-579-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2007-08-23 | 512-579-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2007-08-23 | 512-579-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2007-08-23 | 512-579-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2007-08-14 | 512-216-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SAN MARCOS | TX |
| 2007-07-26 | 512-986-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LEANDER | TX |
| 2007-07-26 | 512-986-8XXX | 8000–8999 | Assigned | CSC VOICE, LLC | 612K | LEANDER | TX |
| 2007-07-24 | 512-629-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BASTROP | TX |
| 2007-07-24 | 512-629-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BASTROP | TX |
| 2007-07-23 | 512-487-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2007-07-23 | 512-487-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2007-07-23 | 512-487-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2007-07-23 | 512-514-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | AUSTIN | TX |
| 2007-07-23 | 512-514-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2007-07-23 | 512-514-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2007-07-23 | 512-542-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2007-07-23 | 512-542-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2007-07-23 | 512-584-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2007-07-23 | 512-584-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2007-07-19 | 512-216-6XXX | 6000–6999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SAN MARCOS | TX |
| 2007-07-19 | 512-592-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | AUSTIN | TX |
| 2007-07-19 | 512-592-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | AUSTIN | TX |
| 2007-07-16 | 512-909-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2007-07-16 | 512-909-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2007-07-16 | 512-909-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2007-07-16 | 512-909-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2007-07-16 | 512-909-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2007-07-03 | 512-227-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LOCKHART | TX |
| 2007-07-02 | 512-216-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | SAN MARCOS | TX |
| 2007-07-02 | 512-216-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | SAN MARCOS | TX |
| 2007-06-28 | 512-529-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | AUSTIN | TX |
| 2007-06-28 | 512-529-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | AUSTIN | TX |
| 2007-06-28 | 512-608-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | AUSTIN | TX |
| 2007-06-28 | 512-638-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | AUSTIN | TX |
| 2007-06-26 | 512-579-2XXX | 2000–2999 | Assigned | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 7516 | AUSTIN | TX |
| 2007-06-26 | 512-579-3XXX | 3000–3999 | Assigned | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 7516 | AUSTIN | TX |
| 2007-06-26 | 512-579-4XXX | 4000–4999 | Assigned | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 7516 | AUSTIN | TX |
| 2007-06-26 | 512-579-5XXX | 5000–5999 | Assigned | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 7516 | AUSTIN | TX |
| 2007-06-25 | 512-642-4XXX | 4000–4999 | Assigned | CSC VOICE, LLC | 612K | HUTTO | TX |
| 2007-06-19 | 512-780-0XXX | 0000–0999 | Assigned | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 7516 | AUSTIN | TX |
| 2007-06-19 | 512-780-1XXX | 1000–1999 | Assigned | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 7516 | AUSTIN | TX |
| 2007-06-19 | 512-780-2XXX | 2000–2999 | Assigned | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 7516 | AUSTIN | TX |
| 2007-06-19 | 512-780-3XXX | 3000–3999 | Assigned | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 7516 | AUSTIN | TX |
| 2007-06-19 | 512-780-4XXX | 4000–4999 | Assigned | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 7516 | AUSTIN | TX |
| 2007-06-19 | 512-780-5XXX | 5000–5999 | Assigned | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 7516 | AUSTIN | TX |
| 2007-06-19 | 512-780-6XXX | 6000–6999 | Assigned | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 7516 | 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.