NumberResearchRecent thousands-block assignments
4,201 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 10/14/2026
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
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Quick find in this area code:
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-04-12 | 424-505-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SAN PEDRO | CA |
| 2024-04-12 | 424-505-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SAN PEDRO | CA |
| 2024-04-12 | 424-505-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SAN PEDRO | CA |
| 2024-04-12 | 424-505-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SAN PEDRO | CA |
| 2024-04-12 | 424-505-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SAN PEDRO | CA |
| 2024-04-12 | 424-505-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SAN PEDRO | CA |
| 2024-04-12 | 424-505-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SAN PEDRO | CA |
| 2024-04-12 | 424-788-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SAN PEDRO | CA |
| 2024-04-12 | 425-600-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ISSAQUAH | WA |
| 2024-04-12 | 442-436-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | BRAWLEY | CA |
| 2024-04-12 | 442-459-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | EL CENTRO | CA |
| 2024-04-12 | 442-459-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | EL CENTRO | CA |
| 2024-04-12 | 442-459-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | EL CENTRO | CA |
| 2024-04-12 | 442-459-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | EL CENTRO | CA |
| 2024-04-12 | 442-459-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | EL CENTRO | CA |
| 2024-04-12 | 442-459-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | EL CENTRO | CA |
| 2024-04-12 | 442-459-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | EL CENTRO | CA |
| 2024-04-12 | 442-459-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | EL CENTRO | CA |
| 2024-04-12 | 447-292-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WINCHESTER | IL |
| 2024-04-12 | 458-320-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | EUGENE | OR |
| 2024-04-12 | 458-320-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | EUGENE | OR |
| 2024-04-12 | 458-320-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | EUGENE | OR |
| 2024-04-12 | 458-320-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | EUGENE | OR |
| 2024-04-12 | 458-320-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | EUGENE | OR |
| 2024-04-12 | 458-320-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | EUGENE | OR |
| 2024-04-12 | 458-320-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | EUGENE | OR |
| 2024-04-12 | 458-323-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | LEABURG | OR |
| 2024-04-12 | 507-224-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | ST LEO | MN |
| 2024-04-12 | 507-478-3XXX | 3000–3999 | Assigned | TELNYX LLC | 073H | RUSHMORE | MN |
| 2024-04-12 | 515-425-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | AMES | IA |
| 2024-04-12 | 515-425-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | AMES | IA |
| 2024-04-12 | 515-425-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | AMES | IA |
| 2024-04-12 | 515-425-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | AMES | IA |
| 2024-04-12 | 515-916-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | AMES | IA |
| 2024-04-12 | 515-916-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | AMES | IA |
| 2024-04-12 | 530-376-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | DAVIS | CA |
| 2024-04-12 | 530-424-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | VINA | CA |
| 2024-04-12 | 531-361-6XXX | 6000–6999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | FREMONT | NE |
| 2024-04-12 | 531-361-7XXX | 7000–7999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | FREMONT | NE |
| 2024-04-12 | 531-361-8XXX | 8000–8999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | FREMONT | NE |
| 2024-04-12 | 531-361-9XXX | 9000–9999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | FREMONT | NE |
| 2024-04-12 | 562-240-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2024-04-12 | 562-284-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2024-04-12 | 562-314-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2024-04-12 | 562-344-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2024-04-12 | 562-488-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2024-04-12 | 562-666-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2024-04-12 | 564-249-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MARYSVILLE | WA |
| 2024-04-12 | 571-673-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | OCCOQUAN | VA |
| 2024-04-12 | 586-351-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | ROSEVILLE | MI |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 10/14/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.