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 |
|---|---|---|---|---|---|---|---|
| 2022-05-19 | 667-407-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MD | 876D | BALTIMORE | MD |
| 2022-05-19 | 667-407-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MD | 876D | BALTIMORE | MD |
| 2022-05-19 | 667-407-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MD | 876D | BALTIMORE | MD |
| 2022-05-19 | 667-407-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MD | 876D | BALTIMORE | MD |
| 2022-05-19 | 667-407-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MD | 876D | BALTIMORE | MD |
| 2022-05-18 | 667-406-3XXX | 3000–3999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | BALTIMORE | MD |
| 2022-05-18 | 667-406-4XXX | 4000–4999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | BALTIMORE | MD |
| 2022-05-18 | 667-406-5XXX | 5000–5999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | BALTIMORE | MD |
| 2022-05-18 | 667-406-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | BALTIMORE | MD |
| 2022-05-18 | 667-406-7XXX | 7000–7999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | BALTIMORE | MD |
| 2022-05-18 | 667-406-8XXX | 8000–8999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | BALTIMORE | MD |
| 2022-05-18 | 667-406-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | BALTIMORE | MD |
| 2022-05-17 | 667-298-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | ABERDEEN | MD |
| 2022-05-17 | 667-359-8XXX | 8000–8999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | COLUMBIA | MD |
| 2022-05-17 | 667-359-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | COLUMBIA | MD |
| 2022-05-17 | 667-381-0XXX | 0000–0999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | PARKVILLE | MD |
| 2022-05-17 | 667-392-0XXX | 0000–0999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | ABERDEEN | MD |
| 2022-05-17 | 667-392-1XXX | 1000–1999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | ABERDEEN | MD |
| 2022-05-17 | 667-942-0XXX | 0000–0999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | ABERDEEN | MD |
| 2022-05-17 | 667-942-1XXX | 1000–1999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | ABERDEEN | MD |
| 2022-05-12 | 667-644-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SEVERNA PK | MD |
| 2022-05-10 | 667-349-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | STILL POND | MD |
| 2022-05-10 | 667-390-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | RANDALLSTN | MD |
| 2022-05-10 | 667-856-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | DUNDALK | MD |
| 2022-04-22 | 667-464-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MD | 876D | BALTIMORE | MD |
| 2022-04-22 | 667-464-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MD | 876D | BALTIMORE | MD |
| 2022-04-22 | 667-899-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MD | 876D | BALTIMORE | MD |
| 2022-04-15 | 667-899-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MD | 876D | BALTIMORE | MD |
| 2022-04-14 | 667-270-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | ANNAPOLIS | MD |
| 2022-04-14 | 667-380-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | ANNAPOLIS | MD |
| 2022-04-14 | 667-380-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | ANNAPOLIS | MD |
| 2022-04-14 | 667-380-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | ANNAPOLIS | MD |
| 2022-04-14 | 667-388-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SEVERN | MD |
| 2022-04-14 | 667-388-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SEVERN | MD |
| 2022-04-14 | 667-388-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SEVERN | MD |
| 2022-04-14 | 667-388-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SEVERN | MD |
| 2022-04-14 | 667-646-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | ANNAPOLIS | MD |
| 2022-04-14 | 667-646-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | ANNAPOLIS | MD |
| 2022-04-13 | 667-737-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | PERRYVILLE | MD |
| 2022-04-12 | 667-788-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WESTMINSTR | MD |
| 2022-04-07 | 667-464-0XXX | 0000–0999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | BALTIMORE | MD |
| 2022-04-07 | 667-464-1XXX | 1000–1999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | BALTIMORE | MD |
| 2022-04-07 | 667-464-5XXX | 5000–5999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | BALTIMORE | MD |
| 2022-04-07 | 667-464-8XXX | 8000–8999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | BALTIMORE | MD |
| 2022-04-07 | 667-464-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | BALTIMORE | MD |
| 2022-03-30 | 667-365-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | CHESAPKECY | MD |
| 2022-03-30 | 667-897-8XXX | 8000–8999 | Assigned | TWILIO INTERNATIONAL, INC. | 506J | CHESAPKECY | MD |
| 2022-03-28 | 667-319-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MD | 876D | CHESTERTN | MD |
| 2022-03-28 | 667-359-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MD | 876D | COLUMBIA | MD |
| 2022-03-28 | 667-371-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MD | 876D | ELLICOTTCY | 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.