NumberResearchRecent thousands-block assignments
2,993 blocks assigned in December 2025 · from the daily NANPA thousands-block report, 09/18/2026
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, December 2025
New assignments by month
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| Assigned | Block | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2025-12-31 | 220-220-4XXX | ONVOY, LLC - OH | 464C | ALEXANDRIA | OH |
| 2025-12-31 | 220-220-7XXX | ONVOY, LLC - OH | 464C | ALEXANDRIA | OH |
| 2025-12-31 | 220-253-7XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CIRCLEVL | OH |
| 2025-12-31 | 223-359-9XXX | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HANOVER | PA |
| 2025-12-31 | 223-373-2XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | HARISBGZN1 | PA |
| 2025-12-31 | 223-374-0XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | LANCASTER | PA |
| 2025-12-31 | 223-374-3XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | LANCASTER | PA |
| 2025-12-31 | 227-234-8XXX | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | LEONARDTN | MD |
| 2025-12-31 | 227-300-0XXX | ONVOY, LLC - MD | 876D | ASHTON236 | MD |
| 2025-12-31 | 251-820-3XXX | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | ATMORE | AL |
| 2025-12-31 | 252-540-9XXX | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | GREENVILLE | NC |
| 2025-12-31 | 252-850-2XXX | BOOST SUBSCRIBERCO L.L.C. | 490J | HENDERSON | NC |
| 2025-12-31 | 252-850-5XXX | BOOST SUBSCRIBERCO L.L.C. | 490J | HENDERSON | NC |
| 2025-12-31 | 262-426-7XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 6508 | LAKEGENEVA | WI |
| 2025-12-31 | 262-454-4XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 6508 | MILWAUKZN2 | WI |
| 2025-12-31 | 272-438-2XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | STROUDSBG | PA |
| 2025-12-31 | 308-400-0XXX | ONVOY, LLC - NE | 549E | ORD | NE |
| 2025-12-31 | 319-284-5XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | OELWEIN | IA |
| 2025-12-31 | 326-243-9XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FRANKLIN | OH |
| 2025-12-31 | 327-327-2XXX | ONVOY, LLC - AR | 348F | WILMAR | AR |
| 2025-12-31 | 327-327-4XXX | ONVOY, LLC - AR | 348F | WILMAR | AR |
| 2025-12-31 | 327-327-8XXX | ONVOY, LLC - AR | 348F | WILMAR | AR |
| 2025-12-31 | 346-875-2XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2025-12-31 | 346-906-5XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2025-12-31 | 346-906-6XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2025-12-31 | 346-906-7XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2025-12-31 | 346-906-8XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2025-12-31 | 346-912-8XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | ALVIN | TX |
| 2025-12-31 | 346-918-1XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HSTNSUBURB | TX |
| 2025-12-31 | 346-918-2XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HSTNSUBURB | TX |
| 2025-12-31 | 346-918-3XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HSTNSUBURB | TX |
| 2025-12-31 | 346-918-4XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HSTNSUBURB | TX |
| 2025-12-31 | 346-918-5XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HSTNSUBURB | TX |
| 2025-12-31 | 346-918-6XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HSTNSUBURB | TX |
| 2025-12-31 | 346-918-7XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HSTNSUBURB | TX |
| 2025-12-31 | 346-918-8XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HSTNSUBURB | TX |
| 2025-12-31 | 346-918-9XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HSTNSUBURB | TX |
| 2025-12-31 | 352-290-1XXX | COMCAST IP PHONE, LLC | 318J | ORANGE SPG | FL |
| 2025-12-31 | 352-879-2XXX | METROPCS, INC. | 5562 | INVERNESS | FL |
| 2025-12-31 | 361-398-0XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | VICTORIA | TX |
| 2025-12-31 | 369-226-0XXX | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ARCATA | CA |
| 2025-12-31 | 380-294-8XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | COLUMBUS | OH |
| 2025-12-31 | 380-294-9XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | COLUMBUS | OH |
| 2025-12-31 | 386-585-7XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | PALM COAST | FL |
| 2025-12-31 | 386-585-9XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | PALM COAST | FL |
| 2025-12-31 | 414-521-0XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 6508 | MILWAUKZN1 | WI |
| 2025-12-31 | 414-521-1XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 6508 | MILWAUKZN1 | WI |
| 2025-12-31 | 414-521-2XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 6508 | MILWAUKZN1 | WI |
| 2025-12-31 | 414-528-1XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 6508 | MILWAUKZN1 | WI |
| 2025-12-31 | 414-528-8XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 6508 | MILWAUKZN1 | WI |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/18/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.