NumberResearchRecent thousands-block assignments
2 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 619
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 |
|---|---|---|---|---|---|---|---|
| 2003-04-04 | 619-307-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | SNDG SNDG | CA |
| 2003-04-04 | 619-352-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | NATIONALCY | CA |
| 2003-04-04 | 619-352-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | NATIONALCY | CA |
| 2003-04-04 | 619-352-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | NATIONALCY | CA |
| 2003-04-04 | 619-352-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | NATIONALCY | CA |
| 2003-04-04 | 619-352-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | NATIONALCY | CA |
| 2003-03-19 | 619-271-8XXX | 8000–8999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | CHULAVISTA | CA |
| 2003-03-12 | 619-713-2XXX | 2000–2999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | LA MESA | CA |
| 2003-03-06 | 619-966-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | EL CAJON | CA |
| 2003-03-06 | 619-966-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | EL CAJON | CA |
| 2003-02-28 | 619-365-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | CORONADO | CA |
| 2003-01-30 | 619-245-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | NATIONALCY | CA |
| 2003-01-30 | 619-312-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | EL CAJON | CA |
| 2003-01-30 | 619-739-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | CHULAVISTA | CA |
| 2002-12-11 | 619-278-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | SNDG SNDG | CA |
| 2002-12-09 | 619-309-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | SNDG SNDG | CA |
| 2002-12-04 | 619-245-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | NATIONALCY | CA |
| 2002-11-26 | 619-271-9XXX | 9000–9999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | CHULAVISTA | CA |
| 2002-11-22 | 619-210-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | CHULAVISTA | CA |
| 2002-11-22 | 619-210-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | CHULAVISTA | CA |
| 2002-11-22 | 619-210-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | CHULAVISTA | CA |
| 2002-11-22 | 619-628-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | CHULAVISTA | CA |
| 2002-11-22 | 619-805-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | CORONADO | CA |
| 2002-11-22 | 619-805-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | CORONADO | CA |
| 2002-11-22 | 619-805-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | CORONADO | CA |
| 2002-11-22 | 619-805-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | CORONADO | CA |
| 2002-11-22 | 619-805-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | CORONADO | CA |
| 2002-11-19 | 619-367-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | PINEVALLEY | CA |
| 2002-11-09 | 619-315-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | LA MESA | CA |
| 2002-11-09 | 619-315-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | LA MESA | CA |
| 2002-11-09 | 619-335-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | LA MESA | CA |
| 2002-11-09 | 619-337-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | LA MESA | CA |
| 2002-11-09 | 619-337-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | LA MESA | CA |
| 2002-11-06 | 619-243-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | SNDG SNDG | CA |
| 2002-11-06 | 619-243-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | SNDG SNDG | CA |
| 2002-11-06 | 619-342-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | SNDG SNDG | CA |
| 2002-11-06 | 619-342-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | SNDG SNDG | CA |
| 2002-11-06 | 619-398-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | SNDG SNDG | CA |
| 2002-11-06 | 619-398-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | SNDG SNDG | CA |
| 2002-11-06 | 619-398-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SNDG SNDG | CA |
| 2002-11-06 | 619-436-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | SNDG SNDG | CA |
| 2002-11-06 | 619-436-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SNDG SNDG | CA |
| 2002-11-06 | 619-436-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | SNDG SNDG | CA |
| 2002-11-06 | 619-436-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | SNDG SNDG | CA |
| 2002-11-06 | 619-757-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | SNDG SNDG | CA |
| 2002-11-06 | 619-757-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | SNDG SNDG | CA |
| 2002-11-06 | 619-757-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | SNDG SNDG | CA |
| 2002-11-06 | 619-757-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | SNDG SNDG | CA |
| 2002-11-06 | 619-757-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SNDG SNDG | CA |
| 2002-11-06 | 619-757-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | SNDG SNDG | 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.