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 |
|---|---|---|---|---|---|---|---|
| 2017-08-18 | 667-400-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MD | 876D | BALTIMORE | MD |
| 2017-08-18 | 667-400-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MD | 876D | BALTIMORE | MD |
| 2017-08-18 | 667-400-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MD | 876D | BALTIMORE | MD |
| 2017-08-18 | 667-400-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MD | 876D | BALTIMORE | MD |
| 2017-08-18 | 667-400-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MD | 876D | BALTIMORE | MD |
| 2017-08-07 | 667-223-0XXX | 0000–0999 | Assigned | VONAGE AMERICA LLC | 197D | BALTIMORE | MD |
| 2017-08-07 | 667-223-1XXX | 1000–1999 | Assigned | VONAGE AMERICA LLC | 197D | BALTIMORE | MD |
| 2017-08-04 | 667-240-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | COLUMBIA | MD |
| 2017-08-04 | 667-240-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | COLUMBIA | MD |
| 2017-08-04 | 667-967-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | GLENBURNIE | MD |
| 2017-08-04 | 667-967-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | GLENBURNIE | MD |
| 2017-06-23 | 667-266-6XXX | 6000–6999 | Assigned | COMMIO, LLC | 939H | SALISBURY | MD |
| 2017-06-23 | 667-867-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | BALTIMORE | MD |
| 2017-06-15 | 667-221-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | SALISBURY | MD |
| 2017-06-09 | 667-967-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | GLENBURNIE | MD |
| 2017-05-31 | 667-260-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | BALTIMORE | MD |
| 2017-05-22 | 667-200-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MD | 876D | COLUMBIA | MD |
| 2017-05-22 | 667-201-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MD | 876D | BEL AIR | MD |
| 2017-05-01 | 667-240-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | COLUMBIA | MD |
| 2017-04-14 | 667-307-2XXX | 2000–2999 | Assigned | TELNYX LLC | 073H | CROFTON | MD |
| 2017-04-14 | 667-344-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | CHASE | MD |
| 2017-04-14 | 667-666-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | WEST RIVER | MD |
| 2017-04-14 | 667-803-9XXX | 9000–9999 | Assigned | TELNYX LLC | 073H | SOLOMONS | MD |
| 2017-04-13 | 667-222-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | ARGRGBSNIS | MD |
| 2017-03-28 | 667-226-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MD | 876D | STMICHAELS | MD |
| 2017-03-28 | 667-291-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MD | 876D | MILLINGTON | MD |
| 2017-03-27 | 667-220-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MD | 876D | GREENSBORO | MD |
| 2017-03-27 | 667-285-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MD | 876D | HURLOCK | MD |
| 2017-03-02 | 667-201-7XXX | 7000–7999 | Assigned | TELNYX LLC | 073H | BEL AIR | MD |
| 2017-03-02 | 667-215-5XXX | 5000–5999 | Assigned | TELNYX LLC | 073H | ELKTON | MD |
| 2017-03-02 | 667-240-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | COLUMBIA | MD |
| 2017-03-02 | 667-314-4XXX | 4000–4999 | Assigned | TELNYX LLC | 073H | WESTMINSTR | MD |
| 2017-03-02 | 667-321-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | PRINCEFRCK | MD |
| 2017-03-02 | 667-352-3XXX | 3000–3999 | Assigned | TELNYX LLC | 073H | ABERDEEN | MD |
| 2017-03-02 | 667-458-4XXX | 4000–4999 | Assigned | TELNYX LLC | 073H | ANNAPOLIS | MD |
| 2017-03-02 | 667-777-9XXX | 9000–9999 | Assigned | TELNYX LLC | 073H | SEVERNA PK | MD |
| 2017-03-02 | 667-802-6XXX | 6000–6999 | Assigned | TELNYX LLC | 073H | CATONSVL | MD |
| 2017-03-02 | 667-967-7XXX | 7000–7999 | Assigned | TELNYX LLC | 073H | GLENBURNIE | MD |
| 2017-02-09 | 667-967-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | GLENBURNIE | MD |
| 2017-02-06 | 667-400-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | BALTIMORE | MD |
| 2017-01-30 | 667-312-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD | 7228 | BALTIMORE | MD |
| 2017-01-13 | 667-240-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | COLUMBIA | MD |
| 2017-01-13 | 667-240-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | COLUMBIA | MD |
| 2017-01-13 | 667-967-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | GLENBURNIE | MD |
| 2017-01-13 | 667-967-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | GLENBURNIE | MD |
| 2017-01-13 | 667-967-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | GLENBURNIE | MD |
| 2017-01-10 | 667-204-3XXX | 3000–3999 | Assigned | PAETEC ITEL, LLC | 829J | ANNAPOLIS | MD |
| 2017-01-10 | 667-204-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | ANNAPOLIS | MD |
| 2017-01-10 | 667-204-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | ANNAPOLIS | MD |
| 2017-01-10 | 667-204-6XXX | 6000–6999 | Assigned | PAETEC ITEL, LLC | 829J | ANNAPOLIS | 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.