NumberResearchRecent thousands-block assignments
7 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 628
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 |
|---|---|---|---|---|---|---|---|
| 2016-01-08 | 628-235-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | SNFC CNTRL | CA |
| 2015-12-29 | 628-235-6XXX | 6000–6999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | SNFC CNTRL | CA |
| 2015-12-23 | 628-227-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | SNFC MT-EV | CA |
| 2015-12-23 | 628-227-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | SNFC MT-EV | CA |
| 2015-12-10 | 628-227-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SNFC MT-EV | CA |
| 2015-12-03 | 628-201-1XXX | 1000–1999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNFC CNTRL | CA |
| 2015-12-03 | 628-201-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNFC CNTRL | CA |
| 2015-12-03 | 628-201-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNFC CNTRL | CA |
| 2015-12-01 | 628-201-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | SNFC CNTRL | CA |
| 2015-12-01 | 628-201-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | SNFC CNTRL | CA |
| 2015-12-01 | 628-201-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | SNFC CNTRL | CA |
| 2015-12-01 | 628-224-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNFC MT-EV | CA |
| 2015-12-01 | 628-224-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNFC MT-EV | CA |
| 2015-12-01 | 628-224-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNFC MT-EV | CA |
| 2015-12-01 | 628-224-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNFC MT-EV | CA |
| 2015-12-01 | 628-224-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNFC MT-EV | CA |
| 2015-12-01 | 628-224-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNFC MT-EV | CA |
| 2015-12-01 | 628-227-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNFC MT-EV | CA |
| 2015-12-01 | 628-235-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SNFC CNTRL | CA |
| 2015-12-01 | 628-243-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | SAN RAFAEL | CA |
| 2015-12-01 | 628-243-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | SAN RAFAEL | CA |
| 2015-11-30 | 628-226-6XXX | 6000–6999 | Assigned | SONIC TELECOM, LLC - CA | 433E | BELVEDERE | CA |
| 2015-11-20 | 628-224-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SNFC MT-EV | CA |
| 2015-11-19 | 628-231-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNFC CNTRL | CA |
| 2015-11-19 | 628-231-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNFC CNTRL | CA |
| 2015-11-19 | 628-231-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNFC CNTRL | CA |
| 2015-11-19 | 628-231-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNFC CNTRL | CA |
| 2015-11-19 | 628-999-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNFC CNTRL | CA |
| 2015-11-19 | 628-999-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNFC CNTRL | CA |
| 2015-11-16 | 628-231-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SNFC CNTRL | CA |
| 2015-11-13 | 628-226-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | BELVEDERE | CA |
| 2015-11-13 | 628-226-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | BELVEDERE | CA |
| 2015-10-27 | 628-231-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNFC CNTRL | CA |
| 2015-10-07 | 628-234-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | SAN RAFAEL | CA |
| 2015-10-05 | 628-224-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNFC MT-EV | CA |
| 2015-10-05 | 628-224-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNFC MT-EV | CA |
| 2015-10-05 | 628-224-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNFC MT-EV | CA |
| 2015-10-05 | 628-225-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNFC CNTRL | CA |
| 2015-10-05 | 628-233-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNFC CNTRL | CA |
| 2015-10-05 | 628-233-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNFC CNTRL | CA |
| 2015-10-05 | 628-233-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNFC CNTRL | CA |
| 2015-10-05 | 628-233-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNFC CNTRL | CA |
| 2015-10-05 | 628-233-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNFC CNTRL | CA |
| 2015-10-05 | 628-233-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNFC CNTRL | CA |
| 2015-10-05 | 628-233-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNFC CNTRL | CA |
| 2015-10-05 | 628-233-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNFC CNTRL | CA |
| 2015-09-29 | 628-223-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNFC CNTRL | CA |
| 2015-09-29 | 628-223-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNFC CNTRL | CA |
| 2015-09-29 | 628-223-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNFC CNTRL | CA |
| 2015-09-29 | 628-223-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNFC CNTRL | 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.