NumberResearchRecent thousands-block assignments
4,069 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 10/12/2026
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 |
|---|---|---|---|---|---|---|---|
| 2024-06-20 | 227-233-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | WSHNGTNZN2 | MD |
| 2024-06-20 | 227-246-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN5 | MD |
| 2024-06-20 | 227-246-7XXX | 7000–7999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN5 | MD |
| 2024-06-20 | 227-246-8XXX | 8000–8999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN5 | MD |
| 2024-06-20 | 227-246-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN5 | MD |
| 2024-06-20 | 229-465-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - GA | 6116 | ATTAPULGUS | GA |
| 2024-06-20 | 229-638-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - GA | 6116 | ALBANY | GA |
| 2024-06-20 | 240-891-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | DAMASCS240 | MD |
| 2024-06-20 | 254-406-9XXX | 9000–9999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | FORT HOOD | TX |
| 2024-06-20 | 279-261-0XXX | 0000–0999 | Assigned | NUSO, LLC | 732J | SCRM NORTH | CA |
| 2024-06-20 | 279-261-8XXX | 8000–8999 | Assigned | NUSO, LLC | 732J | SCRM NORTH | CA |
| 2024-06-20 | 279-261-9XXX | 9000–9999 | Assigned | NUSO, LLC | 732J | SCRM NORTH | CA |
| 2024-06-20 | 307-453-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | JACKSON | WY |
| 2024-06-20 | 346-827-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | KATY | TX |
| 2024-06-20 | 346-827-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | KATY | TX |
| 2024-06-20 | 346-827-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | KATY | TX |
| 2024-06-20 | 401-366-7XXX | 7000–7999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | PORTSMOUTH | RI |
| 2024-06-20 | 401-395-4XXX | 4000–4999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | CENTREDALE | RI |
| 2024-06-20 | 401-407-7XXX | 7000–7999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | COVENTRY | RI |
| 2024-06-20 | 401-485-8XXX | 8000–8999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | WESTERLY | RI |
| 2024-06-20 | 478-875-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - GA | 6116 | DEXTER | GA |
| 2024-06-20 | 501-518-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | DAMASCUS | AR |
| 2024-06-20 | 501-524-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | VILONIA | AR |
| 2024-06-20 | 501-536-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CONWAY | AR |
| 2024-06-20 | 501-572-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | ENOLA | AR |
| 2024-06-20 | 507-718-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MN | 5256 | ROCHESTER | MN |
| 2024-06-20 | 518-717-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NORTHVILLE | NY |
| 2024-06-20 | 603-680-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HILLSBORO | NH |
| 2024-06-20 | 606-491-0XXX | 0000–0999 | Assigned | ONVOY, LLC - KY | 896E | OLIVE HILL | KY |
| 2024-06-20 | 609-728-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | TRENTON | NJ |
| 2024-06-20 | 618-986-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | WATERLOO | IL |
| 2024-06-20 | 628-726-8XXX | 8000–8999 | Assigned | HD CARRIER LLC | 321J | SNFC CNTRL | CA |
| 2024-06-20 | 628-726-9XXX | 9000–9999 | Assigned | HD CARRIER LLC | 321J | SNFC CNTRL | CA |
| 2024-06-20 | 660-352-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | KNOXVILLE | MO |
| 2024-06-20 | 689-339-0XXX | 0000–0999 | Assigned | ONVOY, LLC - FL | 937C | ORLANDO | FL |
| 2024-06-20 | 689-340-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | ORLANDO | FL |
| 2024-06-20 | 689-340-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | ORLANDO | FL |
| 2024-06-20 | 689-340-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | ORLANDO | FL |
| 2024-06-20 | 689-340-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | ORLANDO | FL |
| 2024-06-20 | 689-340-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | ORLANDO | FL |
| 2024-06-20 | 689-340-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | ORLANDO | FL |
| 2024-06-20 | 689-340-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | ORLANDO | FL |
| 2024-06-20 | 689-340-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | ORLANDO | FL |
| 2024-06-20 | 689-340-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | ORLANDO | FL |
| 2024-06-20 | 689-340-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | ORLANDO | FL |
| 2024-06-20 | 701-990-8XXX | 8000–8999 | Assigned | HD CARRIER LLC | 321J | FARGO | ND |
| 2024-06-20 | 701-990-9XXX | 9000–9999 | Assigned | HD CARRIER LLC | 321J | FARGO | ND |
| 2024-06-20 | 702-988-3XXX | 3000–3999 | Assigned | ONVOY, LLC - NV | 029F | SEARCHLIHT | NV |
| 2024-06-20 | 702-988-9XXX | 9000–9999 | Assigned | ONVOY, LLC - NV | 029F | SEARCHLIHT | NV |
| 2024-06-20 | 712-438-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | CLARINDA | IA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 10/12/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.