NumberResearchRecent thousands-block assignments
4,142 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 10/10/2026
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
Oct 2026
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Quick find in this area code:
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-08-30 | 219-387-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MERRILLVL | IN |
| 2024-08-30 | 223-367-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | LEBANON | PA |
| 2024-08-30 | 229-691-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PAVO | GA |
| 2024-08-30 | 253-413-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | AUBURN | WA |
| 2024-08-30 | 253-413-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | AUBURN | WA |
| 2024-08-30 | 253-413-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | AUBURN | WA |
| 2024-08-30 | 253-413-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | AUBURN | WA |
| 2024-08-30 | 253-413-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | AUBURN | WA |
| 2024-08-30 | 253-413-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | AUBURN | WA |
| 2024-08-30 | 309-877-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | PEORIA | IL |
| 2024-08-30 | 313-518-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DETROITZN5 | MI |
| 2024-08-30 | 313-518-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DETROITZN5 | MI |
| 2024-08-30 | 313-542-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DETROITZN5 | MI |
| 2024-08-30 | 313-559-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DETROITZN5 | MI |
| 2024-08-30 | 313-697-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DETROITZN5 | MI |
| 2024-08-30 | 315-260-2XXX | 2000–2999 | Assigned | ONVOY, LLC- NY | 384C | MUNNSVILLE | NY |
| 2024-08-30 | 315-934-3XXX | 3000–3999 | Assigned | ONVOY, LLC- NY | 384C | PHOENIX | NY |
| 2024-08-30 | 346-758-5XXX | 5000–5999 | Assigned | PEERLESS NETWORK OF TEXAS, LLC - TX | 177F | RICHMNRNBG | TX |
| 2024-08-30 | 350-230-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MODESTO | CA |
| 2024-08-30 | 385-589-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | MURRAY | UT |
| 2024-08-30 | 385-589-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | MURRAY | UT |
| 2024-08-30 | 385-589-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | MURRAY | UT |
| 2024-08-30 | 385-589-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | MURRAY | UT |
| 2024-08-30 | 406-405-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MT | 453F | LIBBY | MT |
| 2024-08-30 | 406-513-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | HELENA | MT |
| 2024-08-30 | 406-513-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | HELENA | MT |
| 2024-08-30 | 425-570-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | HALLS LAKE | WA |
| 2024-08-30 | 425-967-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | HALLS LAKE | WA |
| 2024-08-30 | 509-617-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | ELLENSBURG | WA |
| 2024-08-30 | 509-617-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | ELLENSBURG | WA |
| 2024-08-30 | 520-264-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | NOGALES | AZ |
| 2024-08-30 | 520-736-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | CASAGRANDE | AZ |
| 2024-08-30 | 520-736-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | CASAGRANDE | AZ |
| 2024-08-30 | 520-736-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | CASAGRANDE | AZ |
| 2024-08-30 | 520-736-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | CASAGRANDE | AZ |
| 2024-08-30 | 557-213-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | ST LOUIS | MO |
| 2024-08-30 | 564-243-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | WHATCOMCTY | WA |
| 2024-08-30 | 603-426-2XXX | 2000–2999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | DERRY | NH |
| 2024-08-30 | 618-612-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | RED BUD | IL |
| 2024-08-30 | 628-312-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | SNFC CNTRL | CA |
| 2024-08-30 | 645-678-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | KEYS | FL |
| 2024-08-30 | 645-678-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | KEYS | FL |
| 2024-08-30 | 645-678-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | KEYS | FL |
| 2024-08-30 | 645-678-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | KEYS | FL |
| 2024-08-30 | 645-678-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | KEYS | FL |
| 2024-08-30 | 669-351-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | SARATOGA | CA |
| 2024-08-30 | 669-351-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | SARATOGA | CA |
| 2024-08-30 | 669-351-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | SARATOGA | CA |
| 2024-08-30 | 669-351-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | SARATOGA | CA |
| 2024-08-30 | 669-351-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SARATOGA | CA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 10/10/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.