NumberResearchRecent thousands-block assignments
31 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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 530
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 |
|---|---|---|---|---|---|---|---|
| 2005-07-06 | 530-475-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | HORNBROOK | CA |
| 2005-07-06 | 530-554-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | DAVIS | CA |
| 2005-07-06 | 530-554-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | DAVIS | CA |
| 2005-07-06 | 530-576-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | LOSMOLINOS | CA |
| 2005-07-06 | 530-625-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | HOOPA | CA |
| 2005-07-06 | 530-627-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | ORLEANS | CA |
| 2005-07-06 | 530-628-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | HAYFORK | CA |
| 2005-07-06 | 530-629-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | WILLOW CRK | CA |
| 2005-07-06 | 530-731-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | GRENADA | CA |
| 2005-07-06 | 530-732-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | GERBER | CA |
| 2005-07-06 | 530-734-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | FRENCHGLCH | CA |
| 2005-07-06 | 530-736-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | RED BLUFF | CA |
| 2005-07-06 | 530-773-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | LOYALTON | CA |
| 2005-07-06 | 530-778-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | LEWISTON | CA |
| 2005-07-06 | 530-793-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | PASKENTA | CA |
| 2005-07-06 | 530-838-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | CORNING | CA |
| 2005-07-06 | 530-839-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | VINA | CA |
| 2005-07-06 | 530-882-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | RICHVALE | CA |
| 2005-07-06 | 530-918-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | MT SHASTA | CA |
| 2005-07-06 | 530-962-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SHASTALAKE | CA |
| 2005-07-06 | 530-968-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | ELK CREEK | CA |
| 2005-07-06 | 530-988-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | ORLAND | CA |
| 2005-07-06 | 530-994-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SIERRAVL | CA |
| 2005-06-30 | 530-403-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | OROVILLE | CA |
| 2005-06-29 | 530-391-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PLVL WEST | CA |
| 2005-06-29 | 530-391-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PLVL WEST | CA |
| 2005-06-29 | 530-417-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PLVL WEST | CA |
| 2005-06-29 | 530-613-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | AUBN MAIN | CA |
| 2005-06-28 | 530-216-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | MARYSVILLE | CA |
| 2005-06-22 | 530-350-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SHINGLESPG | CA |
| 2005-06-22 | 530-387-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SHINGLESPG | CA |
| 2005-06-22 | 530-387-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SHINGLESPG | CA |
| 2005-06-21 | 530-285-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | CAMPTONVL | CA |
| 2005-06-21 | 530-331-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | YREKA | CA |
| 2005-06-21 | 530-334-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | GEORGETOWN | CA |
| 2005-06-21 | 530-349-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | COLFAX | CA |
| 2005-06-21 | 530-429-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | DOWNIEVL | CA |
| 2005-06-21 | 530-455-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | LIVE OAK | CA |
| 2005-06-21 | 530-506-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | KNIGHTSLDG | CA |
| 2005-06-21 | 530-508-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | DUNNIGAN | CA |
| 2005-06-21 | 530-517-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | BUTTE CITY | CA |
| 2005-06-21 | 530-523-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | HOMEWOOD | CA |
| 2005-06-21 | 530-637-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | CLFX WEMR | CA |
| 2005-06-21 | 530-652-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | GRVY SOUTH | CA |
| 2005-06-21 | 530-730-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | BANGOR | CA |
| 2005-06-21 | 530-772-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | CHALLENGE | CA |
| 2005-06-21 | 530-776-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | ANDERSON | CA |
| 2005-06-21 | 530-787-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | ESPARTO | CA |
| 2005-06-21 | 530-798-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | GRVY MAIN | CA |
| 2005-06-21 | 530-836-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | BLAIRSDEN | CA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.