NumberResearchRecent thousands-block assignments
1 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 209
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 |
|---|---|---|---|---|---|---|---|
| 2006-07-18 | 209-887-4XXX | 4000–4999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | LINDEN | CA |
| 2006-07-18 | 209-923-4XXX | 4000–4999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | MANTECA | CA |
| 2006-07-17 | 209-251-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | GALT | CA |
| 2006-07-17 | 209-663-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | LODI | CA |
| 2006-07-13 | 209-829-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LOS BANOS | CA |
| 2006-07-12 | 209-221-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | TRACY | CA |
| 2006-07-07 | 209-233-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | MERCED | CA |
| 2006-07-07 | 209-423-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | STOCKTON | CA |
| 2006-06-29 | 209-594-0XXX | 0000–0999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | STOCKTON | CA |
| 2006-06-29 | 209-594-1XXX | 1000–1999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | STOCKTON | CA |
| 2006-06-27 | 209-818-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | MODESTO | CA |
| 2006-06-27 | 209-818-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | MODESTO | CA |
| 2006-06-22 | 209-596-4XXX | 4000–4999 | Assigned | AT&T ENTERPRISES, LLC | 516C | MODESTO | CA |
| 2006-06-21 | 209-450-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | MODESTO | CA |
| 2006-06-16 | 209-596-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MODESTO | CA |
| 2006-06-16 | 209-596-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MODESTO | CA |
| 2006-06-16 | 209-596-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MODESTO | CA |
| 2006-06-16 | 209-596-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MODESTO | CA |
| 2006-06-09 | 209-640-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | TRACY | CA |
| 2006-06-07 | 209-275-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MANTECA | CA |
| 2006-05-30 | 209-753-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ANGELSCAMP | CA |
| 2006-05-30 | 209-753-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ANGELSCAMP | CA |
| 2006-05-26 | 209-740-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | TRACY | CA |
| 2006-05-25 | 209-366-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LODI | CA |
| 2006-05-25 | 209-366-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LODI | CA |
| 2006-05-18 | 209-373-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STOCKTON | CA |
| 2006-05-18 | 209-373-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STOCKTON | CA |
| 2006-05-18 | 209-373-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STOCKTON | CA |
| 2006-05-18 | 209-373-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STOCKTON | CA |
| 2006-05-16 | 209-489-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | MERCED | CA |
| 2006-05-16 | 209-585-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | TURLOCK | CA |
| 2006-05-16 | 209-620-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | TURLOCK | CA |
| 2006-05-16 | 209-834-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | TRACY | CA |
| 2006-05-15 | 209-829-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LOS BANOS | CA |
| 2006-05-12 | 209-267-7XXX | 7000–7999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | SUTTER CRK | CA |
| 2006-05-12 | 209-274-7XXX | 7000–7999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | IONE | CA |
| 2006-05-12 | 209-286-4XXX | 4000–4999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | MOKELUMNHL | CA |
| 2006-05-12 | 209-356-7XXX | 7000–7999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | ATWATER | CA |
| 2006-05-12 | 209-386-5XXX | 5000–5999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | MERCED | CA |
| 2006-05-12 | 209-586-8XXX | 8000–8999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | SNRA JUNO | CA |
| 2006-05-12 | 209-633-8XXX | 8000–8999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | TURLOCK | CA |
| 2006-05-12 | 209-753-3XXX | 3000–3999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | ANGELSCAMP | CA |
| 2006-05-12 | 209-759-5XXX | 5000–5999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | CLEMENTS | CA |
| 2006-05-12 | 209-772-5XXX | 5000–5999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | VALLEY SPG | CA |
| 2006-05-12 | 209-828-5XXX | 5000–5999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | LOS BANOS | CA |
| 2006-05-12 | 209-837-2XXX | 2000–2999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | CROWS LDG | CA |
| 2006-05-12 | 209-838-5XXX | 5000–5999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | ESCALON | CA |
| 2006-05-12 | 209-845-4XXX | 4000–4999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | OAKDALE | CA |
| 2006-05-12 | 209-852-5XXX | 5000–5999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | WTFR DNPR | CA |
| 2006-05-12 | 209-853-4XXX | 4000–4999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | WTFR MAIN | 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.