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
Aug 2026
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Dec 2025
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2015-05-05 | 747-256-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | NO HOLLYWD | CA |
| 2015-05-05 | 805-635-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | PASOROBLES | CA |
| 2015-05-05 | 909-674-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | REDLANDS | CA |
| 2015-05-05 | 909-674-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | REDLANDS | CA |
| 2015-05-05 | 909-736-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | UPLAND | CA |
| 2015-05-05 | 909-736-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | UPLAND | CA |
| 2015-05-05 | 916-841-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2015-05-05 | 916-841-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2015-05-05 | 916-841-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2015-05-05 | 916-841-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2015-05-05 | 916-841-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2015-05-05 | 916-841-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2015-05-05 | 916-841-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2015-05-04 | 415-910-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | BELVEDERE | CA |
| 2015-05-04 | 415-910-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | BELVEDERE | CA |
| 2015-05-04 | 415-910-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | BELVEDERE | CA |
| 2015-05-04 | 510-640-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | ELSBR-PINL | CA |
| 2015-05-04 | 510-640-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | ELSBR-PINL | CA |
| 2015-05-04 | 510-640-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | ELSBR-PINL | CA |
| 2015-05-04 | 510-640-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | ELSBR-PINL | CA |
| 2015-05-04 | 510-640-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | ELSBR-PINL | CA |
| 2015-05-04 | 510-640-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ELSBR-PINL | CA |
| 2015-05-04 | 510-674-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | HAYWARD | CA |
| 2015-05-04 | 510-674-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | HAYWARD | CA |
| 2015-05-04 | 562-385-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | DOWNEY | CA |
| 2015-05-04 | 562-385-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | DOWNEY | CA |
| 2015-05-04 | 562-385-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | DOWNEY | CA |
| 2015-05-04 | 909-330-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | ETIWANDA | CA |
| 2015-05-01 | 208-600-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | BOISE | ID |
| 2015-05-01 | 208-600-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | BOISE | ID |
| 2015-05-01 | 208-600-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | BOISE | ID |
| 2015-05-01 | 208-600-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | BOISE | ID |
| 2015-05-01 | 208-600-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | BOISE | ID |
| 2015-05-01 | 208-600-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | BOISE | ID |
| 2015-04-30 | 424-349-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | CMTN CMTN | CA |
| 2015-04-30 | 424-349-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | CMTN CMTN | CA |
| 2015-04-30 | 747-248-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | NO HOLLYWD | CA |
| 2015-04-30 | 747-248-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | NO HOLLYWD | CA |
| 2015-04-30 | 760-925-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2015-04-30 | 760-925-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2015-04-30 | 916-579-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | FAIR OAKS | CA |
| 2015-04-30 | 916-827-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | FAIR OAKS | CA |
| 2015-04-30 | 916-827-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | FAIR OAKS | CA |
| 2015-04-30 | 916-827-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | FAIR OAKS | CA |
| 2015-04-29 | 619-483-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | CHULAVISTA | CA |
| 2015-04-29 | 619-483-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | CHULAVISTA | CA |
| 2015-04-29 | 619-483-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | CHULAVISTA | CA |
| 2015-04-29 | 619-483-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | CHULAVISTA | CA |
| 2015-04-29 | 619-483-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | CHULAVISTA | CA |
| 2015-04-29 | 619-547-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | CHULAVISTA | 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.