NumberResearchRecent thousands-block assignments
70 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
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 667
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 |
|---|---|---|---|---|---|---|---|
| 2024-06-27 | 667-490-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PIKESVILLE | MD |
| 2024-06-27 | 667-490-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PIKESVILLE | MD |
| 2024-06-26 | 667-471-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PIKESVILLE | MD |
| 2024-06-26 | 667-471-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PIKESVILLE | MD |
| 2024-06-26 | 667-471-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PIKESVILLE | MD |
| 2024-06-21 | 667-485-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MD | 876D | CAMBRIDGE | MD |
| 2024-06-18 | 667-204-1XXX | 1000–1999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | ANNAPOLIS | MD |
| 2024-06-18 | 667-221-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MD | 876D | SALISBURY | MD |
| 2024-06-18 | 667-458-1XXX | 1000–1999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | ANNAPOLIS | MD |
| 2024-06-18 | 667-472-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MD | 876D | PRINCEANNE | MD |
| 2024-06-18 | 667-492-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MD | 876D | SEVERN | MD |
| 2024-06-18 | 667-492-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MD | 876D | SEVERN | MD |
| 2024-06-18 | 667-492-9XXX | 9000–9999 | Assigned | ONVOY, LLC - MD | 876D | SEVERN | MD |
| 2024-06-13 | 667-489-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MD | 876D | HAMPSTEAD | MD |
| 2024-06-12 | 667-319-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MD | 876D | CHESTERTN | MD |
| 2024-06-12 | 667-465-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MD | 876D | ABERDEEN | MD |
| 2024-06-12 | 667-470-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MD | 876D | GLENBURNIE | MD |
| 2024-06-11 | 667-442-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | ESSEX | MD |
| 2024-06-05 | 667-442-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MD | 876D | ESSEX | MD |
| 2024-05-31 | 667-492-1XXX | 1000–1999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SEVERN | MD |
| 2024-05-31 | 667-492-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SEVERN | MD |
| 2024-05-31 | 667-492-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SEVERN | MD |
| 2024-05-31 | 667-492-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SEVERN | MD |
| 2024-05-31 | 667-492-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SEVERN | MD |
| 2024-05-31 | 667-492-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SEVERN | MD |
| 2024-05-30 | 667-526-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MD | 876D | CENTREVL | MD |
| 2024-05-24 | 667-478-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SYKESVILLE | MD |
| 2024-05-23 | 667-441-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PARKVILLE | MD |
| 2024-05-21 | 667-451-7XXX | 7000–7999 | Assigned | PEERLESS NETWORK OF MARYLAND, LLC | 568G | FORK | MD |
| 2024-05-21 | 667-463-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF MARYLAND, LLC | 568G | DARLINGTON | MD |
| 2024-05-21 | 667-466-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF MARYLAND, LLC | 568G | HAVREGRACE | MD |
| 2024-05-21 | 667-486-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | PRINCEFRCK | MD |
| 2024-05-21 | 667-486-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | PRINCEFRCK | MD |
| 2024-05-20 | 667-487-1XXX | 1000–1999 | Assigned | CALLWORKS CORPORATION | 475J | BALTIMORE | MD |
| 2024-05-20 | 667-488-1XXX | 1000–1999 | Assigned | CALLWORKS CORPORATION | 475J | SALISBURY | MD |
| 2024-05-17 | 667-486-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | PRINCEFRCK | MD |
| 2024-05-14 | 667-389-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MD | 876D | CAMBRIDGE | MD |
| 2024-05-08 | 667-484-0XXX | 0000–0999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | WESTMINSTR | MD |
| 2024-05-08 | 667-484-1XXX | 1000–1999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | WESTMINSTR | MD |
| 2024-05-01 | 667-482-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CATONSVL | MD |
| 2024-05-01 | 667-482-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CATONSVL | MD |
| 2024-05-01 | 667-482-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CATONSVL | MD |
| 2024-05-01 | 667-482-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CATONSVL | MD |
| 2024-05-01 | 667-482-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CATONSVL | MD |
| 2024-04-29 | 667-254-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MD | 876D | CHESTERTN | MD |
| 2024-04-25 | 667-330-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SALISBURY | MD |
| 2024-04-25 | 667-458-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ANNAPOLIS | MD |
| 2024-04-22 | 667-470-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | GLENBURNIE | MD |
| 2024-04-22 | 667-470-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | GLENBURNIE | MD |
| 2024-04-19 | 667-398-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF MARYLAND, LLC | 568G | PT DEPOSIT | MD |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.