NumberResearchRecent thousands-block assignments
27 blocks assigned in December 2025 · 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, December 2025 — NPA 667
New assignments by month
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2025-12-31 | 667-412-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | EASTON | MD |
| 2025-12-31 | 667-522-0XXX | 0000–0999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | ABERDEEN | MD |
| 2025-12-30 | 667-486-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | PRINCEFRCK | MD |
| 2025-12-30 | 667-486-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | PRINCEFRCK | MD |
| 2025-12-29 | 667-286-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SALISBURY | MD |
| 2025-12-29 | 667-527-3XXX | 3000–3999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | GLENBURNIE | MD |
| 2025-12-29 | 667-527-4XXX | 4000–4999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | GLENBURNIE | MD |
| 2025-12-29 | 667-527-5XXX | 5000–5999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | GLENBURNIE | MD |
| 2025-12-29 | 667-527-7XXX | 7000–7999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | GLENBURNIE | MD |
| 2025-12-19 | 667-493-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | ANNAPOLIS | MD |
| 2025-12-18 | 667-484-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MD | 876D | WESTMINSTR | MD |
| 2025-12-17 | 667-493-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MD | 876D | ANNAPOLIS | MD |
| 2025-12-15 | 667-484-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WESTMINSTR | MD |
| 2025-12-15 | 667-485-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CAMBRIDGE | MD |
| 2025-12-15 | 667-485-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CAMBRIDGE | MD |
| 2025-12-15 | 667-532-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PARKVILLE | MD |
| 2025-12-11 | 667-502-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MD | 876D | COLUMBIA | MD |
| 2025-12-11 | 667-527-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MD | 876D | GLENBURNIE | MD |
| 2025-12-11 | 667-668-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MD | 876D | FALLSTON | MD |
| 2025-12-09 | 667-535-0XXX | 0000–0999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | RISING SUN | MD |
| 2025-12-09 | 667-535-1XXX | 1000–1999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | RISING SUN | MD |
| 2025-12-08 | 667-448-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | REISTERSTN | MD |
| 2025-12-03 | 667-530-0XXX | 0000–0999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | ABERDEEN | MD |
| 2025-12-03 | 667-530-1XXX | 1000–1999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | ABERDEEN | MD |
| 2025-12-03 | 667-530-2XXX | 2000–2999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | ABERDEEN | MD |
| 2025-12-03 | 667-530-3XXX | 3000–3999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | ABERDEEN | MD |
| 2025-12-03 | 667-530-4XXX | 4000–4999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | ABERDEEN | MD |
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.