NumberResearchRecent thousands-block assignments
68 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/27/2026
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
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2015-04-08 | 626-223-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | ALHAMBRA | CA |
| 2015-04-08 | 626-223-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | ALHAMBRA | CA |
| 2015-04-08 | 626-223-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | ALHAMBRA | CA |
| 2015-04-08 | 626-223-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | ALHAMBRA | CA |
| 2015-04-08 | 626-223-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | ALHAMBRA | CA |
| 2015-04-08 | 628-888-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | SAN RAFAEL | CA |
| 2015-04-08 | 636-383-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | TROY | MO |
| 2015-04-08 | 650-660-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | HALFMOONBY | CA |
| 2015-04-08 | 650-660-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | HALFMOONBY | CA |
| 2015-04-08 | 915-260-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | EL PASO | TX |
| 2015-04-08 | 915-260-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | EL PASO | TX |
| 2015-04-08 | 915-260-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | EL PASO | TX |
| 2015-04-08 | 949-426-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | CAPITRNVLY | CA |
| 2015-04-08 | 949-426-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | CAPITRNVLY | CA |
| 2015-04-07 | 385-424-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | KAYSVILLE | UT |
| 2015-04-07 | 385-424-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | KAYSVILLE | UT |
| 2015-04-07 | 385-424-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | KAYSVILLE | UT |
| 2015-04-07 | 385-445-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | KAYSVILLE | UT |
| 2015-04-06 | 440-472-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | BEREA | OH |
| 2015-04-06 | 440-472-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | BEREA | OH |
| 2015-04-02 | 424-387-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | SNMN SNMN | CA |
| 2015-04-02 | 520-381-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | CASAGRANDE | AZ |
| 2015-04-02 | 520-500-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | TUCSON | AZ |
| 2015-04-02 | 520-500-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | TUCSON | AZ |
| 2015-04-02 | 520-500-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | TUCSON | AZ |
| 2015-04-02 | 520-815-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | TUCSON | AZ |
| 2015-04-02 | 520-815-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | TUCSON | AZ |
| 2015-04-02 | 626-650-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | AZUSA | CA |
| 2015-04-02 | 626-650-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | AZUSA | CA |
| 2015-04-01 | 209-270-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | LOS BANOS | CA |
| 2015-04-01 | 209-270-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | LOS BANOS | CA |
| 2015-04-01 | 209-302-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | MANTECA | CA |
| 2015-04-01 | 209-302-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | MANTECA | CA |
| 2015-04-01 | 209-302-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | MANTECA | CA |
| 2015-04-01 | 209-362-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | TRACY | CA |
| 2015-04-01 | 209-362-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | TRACY | CA |
| 2015-04-01 | 209-453-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | STOCKTON | CA |
| 2015-04-01 | 209-453-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | STOCKTON | CA |
| 2015-04-01 | 209-453-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | STOCKTON | CA |
| 2015-04-01 | 213-436-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 10 | CA |
| 2015-04-01 | 213-436-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 10 | CA |
| 2015-04-01 | 213-436-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 10 | CA |
| 2015-04-01 | 213-436-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 10 | CA |
| 2015-04-01 | 213-436-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 10 | CA |
| 2015-04-01 | 408-908-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | SNJS NORTH | CA |
| 2015-04-01 | 424-387-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | SNMN SNMN | CA |
| 2015-04-01 | 424-387-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SNMN SNMN | CA |
| 2015-04-01 | 619-394-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | SNDG SNDG | CA |
| 2015-04-01 | 619-394-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | SNDG SNDG | CA |
| 2015-04-01 | 619-394-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | SNDG SNDG | CA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/27/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.