NumberResearchRecent thousands-block assignments
18 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 661
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 |
|---|---|---|---|---|---|---|---|
| 2024-09-06 | 661-646-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LANCASTER | CA |
| 2024-09-06 | 661-646-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LANCASTER | CA |
| 2024-08-29 | 661-512-1XXX | 1000–1999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | PLDL AGDL | CA |
| 2024-08-28 | 661-640-2XXX | 2000–2999 | Assigned | NUSO, LLC | 732J | BKFD NORTH | CA |
| 2024-08-28 | 661-640-3XXX | 3000–3999 | Assigned | NUSO, LLC | 732J | BKFD NORTH | CA |
| 2024-08-26 | 661-614-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TEHACHAPI | CA |
| 2024-08-26 | 661-997-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MCFARLAND | CA |
| 2024-08-19 | 661-390-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | ARVIN | CA |
| 2024-08-19 | 661-557-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ARVIN | CA |
| 2024-08-19 | 661-649-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | ARVIN | CA |
| 2024-08-19 | 661-786-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNCA SGCC | CA |
| 2024-08-19 | 661-812-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNCA NHCS | CA |
| 2024-08-12 | 661-640-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | BKFD NORTH | CA |
| 2024-08-12 | 661-640-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | BKFD NORTH | CA |
| 2024-08-12 | 661-647-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | BKFD SOUTH | CA |
| 2024-08-12 | 661-647-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | BKFD SOUTH | CA |
| 2024-08-12 | 661-995-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | BKFD MAIN | CA |
| 2024-08-12 | 661-995-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | BKFD MAIN | CA |
| 2024-07-23 | 661-648-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | PLDL PLDL | CA |
| 2024-07-23 | 661-648-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | PLDL PLDL | CA |
| 2024-07-23 | 661-648-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | PLDL PLDL | CA |
| 2024-07-23 | 661-648-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | PLDL PLDL | CA |
| 2024-07-23 | 661-648-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | PLDL PLDL | CA |
| 2024-07-15 | 661-643-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LANCASTER | CA |
| 2024-07-15 | 661-643-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LANCASTER | CA |
| 2024-07-09 | 661-468-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | PLDL AGDL | CA |
| 2024-07-05 | 661-646-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | LANCASTER | CA |
| 2024-07-05 | 661-647-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | BKFD SOUTH | CA |
| 2024-07-03 | 661-279-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | ROSAMOND | CA |
| 2024-07-03 | 661-629-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | BKFD NORTH | CA |
| 2024-07-03 | 661-640-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | BKFD NORTH | CA |
| 2024-07-03 | 661-640-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | BKFD NORTH | CA |
| 2024-07-03 | 661-643-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LANCASTER | CA |
| 2024-07-03 | 661-643-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LANCASTER | CA |
| 2024-07-03 | 661-643-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LANCASTER | CA |
| 2024-07-03 | 661-643-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LANCASTER | CA |
| 2024-07-03 | 661-928-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | BKFD SOUTH | CA |
| 2024-07-03 | 661-995-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | BKFD MAIN | CA |
| 2024-07-03 | 661-995-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | BKFD MAIN | CA |
| 2024-07-01 | 661-640-8XXX | 8000–8999 | Assigned | HD CARRIER LLC | 321J | BKFD NORTH | CA |
| 2024-07-01 | 661-640-9XXX | 9000–9999 | Assigned | HD CARRIER LLC | 321J | BKFD NORTH | CA |
| 2024-06-21 | 661-461-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | LEBEC | CA |
| 2024-06-21 | 661-590-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | WASCO | CA |
| 2024-06-21 | 661-590-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | WASCO | CA |
| 2024-06-21 | 661-649-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | ARVIN | CA |
| 2024-06-21 | 661-649-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | ARVIN | CA |
| 2024-06-21 | 661-649-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | ARVIN | CA |
| 2024-06-21 | 661-668-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | EARLIMART | CA |
| 2024-06-18 | 661-642-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | DELANO | CA |
| 2024-06-13 | 661-629-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | BKFD NORTH | CA |
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.