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 |
|---|---|---|---|---|---|---|---|
| 2016-08-15 | 628-205-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNFC CNTRL | CA |
| 2016-08-15 | 628-205-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNFC CNTRL | CA |
| 2016-08-15 | 628-205-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNFC CNTRL | CA |
| 2016-08-15 | 628-205-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNFC CNTRL | CA |
| 2016-08-15 | 628-205-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNFC CNTRL | CA |
| 2016-08-15 | 628-232-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | INVERNESS | CA |
| 2016-08-15 | 628-237-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | SAUSALITO | CA |
| 2016-08-15 | 628-238-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | IGNACIO | CA |
| 2016-08-15 | 628-245-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | MILLVALLEY | CA |
| 2016-08-15 | 628-252-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | CORTEMADRA | CA |
| 2016-08-10 | 628-202-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | BELVEDERE | CA |
| 2016-08-10 | 628-202-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | BELVEDERE | CA |
| 2016-08-10 | 628-202-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | BELVEDERE | CA |
| 2016-08-09 | 628-208-0XXX | 0000–0999 | Assigned | VONAGE AMERICA LLC | 197D | SNFC CNTRL | CA |
| 2016-08-03 | 628-238-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | IGNACIO | CA |
| 2016-08-03 | 628-245-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | MILLVALLEY | CA |
| 2016-08-02 | 628-241-3XXX | 3000–3999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | SNFC JUNPR | CA |
| 2016-08-01 | 628-207-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC MT-EV | CA |
| 2016-08-01 | 628-207-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC MT-EV | CA |
| 2016-08-01 | 628-207-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC MT-EV | CA |
| 2016-07-28 | 628-205-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNFC CNTRL | CA |
| 2016-07-28 | 628-205-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNFC CNTRL | CA |
| 2016-07-28 | 628-205-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNFC CNTRL | CA |
| 2016-07-28 | 628-205-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNFC CNTRL | CA |
| 2016-07-26 | 628-227-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC MT-EV | CA |
| 2016-07-26 | 628-227-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC MT-EV | CA |
| 2016-07-26 | 628-246-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | SNFC CNTRL | CA |
| 2016-07-26 | 628-246-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | SNFC CNTRL | CA |
| 2016-07-26 | 628-246-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | SNFC CNTRL | CA |
| 2016-07-26 | 628-246-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | SNFC CNTRL | CA |
| 2016-07-26 | 628-246-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SNFC CNTRL | CA |
| 2016-07-26 | 628-253-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SAN RAFAEL | CA |
| 2016-07-26 | 628-777-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC MT-EV | CA |
| 2016-07-26 | 628-899-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC MT-EV | CA |
| 2016-07-25 | 628-246-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | SNFC CNTRL | CA |
| 2016-07-22 | 628-239-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC JUNPR | CA |
| 2016-07-22 | 628-239-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC JUNPR | CA |
| 2016-07-22 | 628-239-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC JUNPR | CA |
| 2016-07-22 | 628-239-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC JUNPR | CA |
| 2016-07-22 | 628-239-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC JUNPR | CA |
| 2016-07-22 | 628-246-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC CNTRL | CA |
| 2016-07-22 | 628-246-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC CNTRL | CA |
| 2016-07-22 | 628-246-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC CNTRL | CA |
| 2016-07-21 | 628-236-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | NOVATO | CA |
| 2016-07-21 | 628-236-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | NOVATO | CA |
| 2016-07-21 | 628-236-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | NOVATO | CA |
| 2016-07-21 | 628-236-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | NOVATO | CA |
| 2016-07-20 | 628-234-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SAN RAFAEL | CA |
| 2016-07-20 | 628-243-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SAN RAFAEL | CA |
| 2016-07-20 | 628-243-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SAN RAFAEL | 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.