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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Apr 2026
Mar 2026
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Nov 2025
Quick find in this area code:
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-04-05 | 220-444-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | MINGO JCT | OH |
| 2024-04-05 | 220-444-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | MINGO JCT | OH |
| 2024-04-05 | 220-678-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | SOMERSET | OH |
| 2024-04-05 | 220-678-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | SOMERSET | OH |
| 2024-04-05 | 220-788-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | NEWHOLLAND | OH |
| 2024-04-05 | 220-788-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | NEWHOLLAND | OH |
| 2024-04-05 | 220-888-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | RUSHVILLE | OH |
| 2024-04-05 | 220-888-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | RUSHVILLE | OH |
| 2024-04-05 | 220-899-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | GRAYSVILLE | OH |
| 2024-04-05 | 220-899-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | GRAYSVILLE | OH |
| 2024-04-05 | 262-350-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 6508 | WAUKESHA | WI |
| 2024-04-05 | 262-371-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | KENOSHA | WI |
| 2024-04-05 | 262-371-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | KENOSHA | WI |
| 2024-04-05 | 262-450-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 6508 | MILWAUKZN2 | WI |
| 2024-04-05 | 262-450-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 6508 | MILWAUKZN2 | WI |
| 2024-04-05 | 262-450-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 6508 | MILWAUKZN2 | WI |
| 2024-04-05 | 313-738-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DETROITZN5 | MI |
| 2024-04-05 | 313-738-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DETROITZN5 | MI |
| 2024-04-05 | 313-738-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DETROITZN5 | MI |
| 2024-04-05 | 313-738-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DETROITZN5 | MI |
| 2024-04-05 | 314-557-6XXX | 6000–6999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | LADUE | MO |
| 2024-04-05 | 314-636-6XXX | 6000–6999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | OAKVILLE | MO |
| 2024-04-05 | 314-636-7XXX | 7000–7999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | OAKVILLE | MO |
| 2024-04-05 | 314-986-5XXX | 5000–5999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | LADUE | MO |
| 2024-04-05 | 318-285-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | BERNICE | LA |
| 2024-04-05 | 318-385-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | ARCADIA | LA |
| 2024-04-05 | 318-494-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | CONVERSE | LA |
| 2024-04-05 | 318-530-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | CALHOUN | LA |
| 2024-04-05 | 318-627-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | COLFAX | LA |
| 2024-04-05 | 318-679-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | CROWVILLE | LA |
| 2024-04-05 | 318-760-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | COUSHATTA | LA |
| 2024-04-05 | 318-764-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | COLUMBIA | LA |
| 2024-04-05 | 318-786-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | BUNKIE | LA |
| 2024-04-05 | 318-898-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | BOYCE | LA |
| 2024-04-05 | 318-905-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | BENTON | LA |
| 2024-04-05 | 318-942-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | CASTOR | LA |
| 2024-04-05 | 337-218-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | JENNINGS | LA |
| 2024-04-05 | 337-245-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | SWEET LAKE | LA |
| 2024-04-05 | 337-341-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | STMARTINVL | LA |
| 2024-04-05 | 337-341-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | STMARTINVL | LA |
| 2024-04-05 | 337-343-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | DE RIDDER | LA |
| 2024-04-05 | 337-352-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | NEW IBERIA | LA |
| 2024-04-05 | 337-361-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | ERATH | LA |
| 2024-04-05 | 337-397-6XXX | 6000–6999 | Assigned | IP HORIZON LLC | 515J | LEESVILLE | LA |
| 2024-04-05 | 337-471-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | FRANKLIN | LA |
| 2024-04-05 | 337-539-5XXX | 5000–5999 | Assigned | IP HORIZON LLC | 515J | GUEYDAN | LA |
| 2024-04-05 | 337-548-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | LAKEARTHUR | LA |
| 2024-04-05 | 337-566-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | KROTZ SPG | LA |
| 2024-04-05 | 337-575-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | VINTON | LA |
| 2024-04-05 | 337-576-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | EUNICE | LA |
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.