NumberResearchRecent thousands-block assignments
16 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 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 |
|---|---|---|---|---|---|---|---|
| 2017-07-19 | 661-218-9XXX | 9000–9999 | Assigned | BHN IP ENABLED SERVICES, LLC | 045L | BKFD NORTH | CA |
| 2017-07-19 | 661-553-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | DELANO | CA |
| 2017-07-19 | 661-662-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | BKFD MAIN | CA |
| 2017-07-19 | 661-662-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | BKFD MAIN | CA |
| 2017-07-19 | 661-662-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | BKFD MAIN | CA |
| 2017-06-30 | 661-409-9XXX | 9000–9999 | Assigned | METROPCS NETWORKS, LLC | 899D | PLDL PLDL | CA |
| 2017-06-30 | 661-417-9XXX | 9000–9999 | Assigned | METROPCS NETWORKS, LLC | 899D | SNCA NHCS | CA |
| 2017-06-27 | 661-488-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LANCASTER | CA |
| 2017-06-23 | 661-731-1XXX | 1000–1999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | EARLIMART | CA |
| 2017-06-22 | 661-443-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | WALKERBSIN | CA |
| 2017-06-13 | 661-404-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | BKFD MAIN | CA |
| 2017-06-13 | 661-885-8XXX | 8000–8999 | Assigned | BHN IP ENABLED SERVICES, LLC | 045L | BKFD SOUTH | CA |
| 2017-06-12 | 661-403-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | PLDL PLDL | CA |
| 2017-06-12 | 661-403-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | PLDL PLDL | CA |
| 2017-05-22 | 661-403-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | PLDL PLDL | CA |
| 2017-05-22 | 661-592-2XXX | 2000–2999 | Assigned | TELNYX LLC | 073H | SNCA SGCC | CA |
| 2017-05-22 | 661-593-5XXX | 5000–5999 | Assigned | TELNYX LLC | 073H | SNCA NHCS | CA |
| 2017-05-22 | 661-952-4XXX | 4000–4999 | Assigned | TELNYX LLC | 073H | LANCASTER | CA |
| 2017-05-16 | 661-582-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | LANCASTER | CA |
| 2017-05-15 | 661-403-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | PLDL PLDL | CA |
| 2017-05-15 | 661-592-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | SNCA SGCC | CA |
| 2017-05-15 | 661-593-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | SNCA NHCS | CA |
| 2017-05-15 | 661-662-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | BKFD MAIN | CA |
| 2017-05-15 | 661-662-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | BKFD MAIN | CA |
| 2017-05-15 | 661-662-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | BKFD MAIN | CA |
| 2017-05-15 | 661-662-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | BKFD MAIN | CA |
| 2017-05-12 | 661-387-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | BKFD NORTH | CA |
| 2017-05-12 | 661-404-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | BKFD MAIN | CA |
| 2017-05-05 | 661-885-9XXX | 9000–9999 | Assigned | BHN IP ENABLED SERVICES, LLC | 045L | BKFD SOUTH | CA |
| 2017-05-02 | 661-279-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | ROSAMOND | CA |
| 2017-05-01 | 661-306-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LAKEHUGHES | CA |
| 2017-04-28 | 661-558-4XXX | 4000–4999 | Assigned | BHN IP ENABLED SERVICES, LLC | 045L | BKFD MAIN | CA |
| 2017-04-28 | 661-577-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | TAFT | CA |
| 2017-04-13 | 661-568-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | SNCA NHCS | CA |
| 2017-04-10 | 661-404-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | BKFD MAIN | CA |
| 2017-04-10 | 661-404-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | BKFD MAIN | CA |
| 2017-04-10 | 661-535-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | BKFD NORTH | CA |
| 2017-04-06 | 661-759-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | WASCO | CA |
| 2017-04-05 | 661-535-4XXX | 4000–4999 | Assigned | BHN IP ENABLED SERVICES, LLC | 045L | BKFD NORTH | CA |
| 2017-04-05 | 661-564-9XXX | 9000–9999 | Assigned | BHN IP ENABLED SERVICES, LLC | 045L | BKFD SOUTH | CA |
| 2017-03-30 | 661-662-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | BKFD MAIN | CA |
| 2017-03-24 | 661-593-3XXX | 3000–3999 | Assigned | METROPCS NETWORKS, LLC | 899D | SNCA NHCS | CA |
| 2017-03-22 | 661-465-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | BERENDMESA | CA |
| 2017-03-22 | 661-536-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | GLENNVILLE | CA |
| 2017-03-22 | 661-543-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | MCFARLAND | CA |
| 2017-03-22 | 661-689-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | CLFRNHTSPG | CA |
| 2017-03-22 | 661-760-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | BUTTONWLLW | CA |
| 2017-03-22 | 661-762-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | MCKITTRICK | CA |
| 2017-03-22 | 661-766-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | CUYAMA | CA |
| 2017-03-22 | 661-769-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | TAFT | CA |
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.