NumberResearchRecent thousands-block assignments
23 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 737
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 |
|---|---|---|---|---|---|---|---|
| 2022-10-06 | 737-342-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2022-10-06 | 737-342-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2022-10-06 | 737-342-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2022-10-06 | 737-342-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2022-10-06 | 737-342-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2022-10-06 | 737-342-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2022-10-06 | 737-342-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2022-10-06 | 737-342-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2022-10-05 | 737-304-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2022-10-05 | 737-334-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2022-10-05 | 737-334-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2022-10-05 | 737-334-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2022-10-05 | 737-334-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2022-10-05 | 737-334-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2022-10-03 | 737-340-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | GEORGETOWN | TX |
| 2022-10-03 | 737-340-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | GEORGETOWN | TX |
| 2022-09-28 | 737-339-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | TAYLOR | TX |
| 2022-09-28 | 737-339-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | TAYLOR | TX |
| 2022-09-27 | 737-335-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | SAN MARCOS | TX |
| 2022-09-26 | 737-315-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | SAN MARCOS | TX |
| 2022-09-26 | 737-315-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | SAN MARCOS | TX |
| 2022-09-23 | 737-334-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | AUSTIN | TX |
| 2022-09-23 | 737-334-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | AUSTIN | TX |
| 2022-09-23 | 737-334-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | AUSTIN | TX |
| 2022-09-23 | 737-334-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | AUSTIN | TX |
| 2022-09-23 | 737-334-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | AUSTIN | TX |
| 2022-09-22 | 737-313-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | AUSTIN | TX |
| 2022-09-22 | 737-330-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | AUSTIN | TX |
| 2022-09-22 | 737-330-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | AUSTIN | TX |
| 2022-09-21 | 737-324-5XXX | 5000–5999 | Assigned | VONAGE AMERICA LLC | 197D | LEANDER | TX |
| 2022-09-15 | 737-313-2XXX | 2000–2999 | Assigned | TELNYX LLC | 073H | AUSTIN | TX |
| 2022-09-15 | 737-330-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | AUSTIN | TX |
| 2022-09-07 | 737-317-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | DRIPPNGSPG | TX |
| 2022-09-07 | 737-510-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BERTRAM | TX |
| 2022-08-26 | 737-762-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | SMITHVILLE | TX |
| 2022-08-24 | 737-305-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | BUDA | TX |
| 2022-08-23 | 737-321-3XXX | 3000–3999 | Assigned | CSC VOICE, LLC | 612K | ELGIN | TX |
| 2022-08-18 | 737-306-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HUTTO | TX |
| 2022-08-18 | 737-306-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HUTTO | TX |
| 2022-08-16 | 737-330-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2022-08-16 | 737-330-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2022-08-16 | 737-330-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2022-08-16 | 737-330-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2022-08-16 | 737-330-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2022-08-16 | 737-330-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2022-08-16 | 737-330-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2022-08-16 | 737-375-5XXX | 5000–5999 | Assigned | TELNYX LLC | 073H | ROCKDALE | TX |
| 2022-07-29 | 737-762-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | SMITHVILLE | TX |
| 2022-07-28 | 737-329-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | AUSTIN | TX |
| 2022-07-28 | 737-329-1XXX | 1000–1999 | 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.