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 |
|---|---|---|---|---|---|---|---|
| 2015-06-25 | 667-888-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MD | 876D | BALTIMORE | MD |
| 2015-06-25 | 667-888-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MD | 876D | BALTIMORE | MD |
| 2015-06-25 | 667-888-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MD | 876D | BALTIMORE | MD |
| 2015-06-25 | 667-888-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MD | 876D | BALTIMORE | MD |
| 2015-06-25 | 667-888-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MD | 876D | BALTIMORE | MD |
| 2015-06-25 | 667-888-9XXX | 9000–9999 | Assigned | ONVOY, LLC - MD | 876D | BALTIMORE | MD |
| 2015-06-23 | 667-802-0XXX | 0000–0999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | CATONSVL | MD |
| 2015-06-18 | 667-219-6XXX | 6000–6999 | Assigned | PAETEC ITEL, LLC | 829J | BALTIMORE | MD |
| 2015-06-18 | 667-219-7XXX | 7000–7999 | Assigned | PAETEC ITEL, LLC | 829J | BALTIMORE | MD |
| 2015-06-18 | 667-224-8XXX | 8000–8999 | Assigned | PAETEC ITEL, LLC | 829J | BALTIMORE | MD |
| 2015-06-18 | 667-224-9XXX | 9000–9999 | Assigned | PAETEC ITEL, LLC | 829J | BALTIMORE | MD |
| 2015-06-17 | 667-224-6XXX | 6000–6999 | Assigned | PAETEC ITEL, LLC | 829J | BALTIMORE | MD |
| 2015-06-17 | 667-224-7XXX | 7000–7999 | Assigned | PAETEC ITEL, LLC | 829J | BALTIMORE | MD |
| 2015-06-15 | 667-225-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | ANNAPOLIS | MD |
| 2015-05-27 | 667-367-9XXX | 9000–9999 | Assigned | BALTIMORE-WASHINGTON TELEPHONE (BWT) | 8697 | WESTMINSTR | MD |
| 2015-05-20 | 667-219-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | BALTIMORE | MD |
| 2015-05-20 | 667-219-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | BALTIMORE | MD |
| 2015-05-18 | 667-333-3XXX | 3000–3999 | Assigned | BALTIMORE-WASHINGTON TELEPHONE (BWT) | 8697 | ARGRGBSNIS | MD |
| 2015-05-13 | 667-312-1XXX | 1000–1999 | Assigned | ATLANTECH ONLINE, INC. - MD | 361H | BALTIMORE | MD |
| 2015-05-12 | 667-305-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MD | 876D | PIKESVILLE | MD |
| 2015-05-12 | 667-305-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MD | 876D | PIKESVILLE | MD |
| 2015-05-11 | 667-677-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MD | 876D | BALTIMORE | MD |
| 2015-05-11 | 667-677-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MD | 876D | BALTIMORE | MD |
| 2015-05-11 | 667-677-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MD | 876D | BALTIMORE | MD |
| 2015-05-11 | 667-677-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MD | 876D | BALTIMORE | MD |
| 2015-05-08 | 667-234-1XXX | 1000–1999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MD | 7325 | BALTIMORE | MD |
| 2015-05-08 | 667-234-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MD | 7325 | BALTIMORE | MD |
| 2015-05-08 | 667-234-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MD | 7325 | BALTIMORE | MD |
| 2015-05-08 | 667-234-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MD | 7325 | BALTIMORE | MD |
| 2015-05-08 | 667-234-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MD | 7325 | BALTIMORE | MD |
| 2015-05-08 | 667-234-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MD | 7325 | BALTIMORE | MD |
| 2015-05-08 | 667-234-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MD | 7325 | BALTIMORE | MD |
| 2015-05-08 | 667-234-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MD | 7325 | BALTIMORE | MD |
| 2015-05-01 | 667-228-0XXX | 0000–0999 | Assigned | BALTIMORE-WASHINGTON TELEPHONE (BWT) | 8697 | ABERDEEN | MD |
| 2015-05-01 | 667-228-1XXX | 1000–1999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | ABERDEEN | MD |
| 2015-05-01 | 667-228-2XXX | 2000–2999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | ABERDEEN | MD |
| 2015-05-01 | 667-228-3XXX | 3000–3999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | ABERDEEN | MD |
| 2015-05-01 | 667-228-4XXX | 4000–4999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | ABERDEEN | MD |
| 2015-04-09 | 667-224-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | BALTIMORE | MD |
| 2015-04-09 | 667-224-3XXX | 3000–3999 | Assigned | PAETEC ITEL, LLC | 829J | BALTIMORE | MD |
| 2015-04-09 | 667-224-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | BALTIMORE | MD |
| 2015-04-09 | 667-224-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | BALTIMORE | MD |
| 2015-03-25 | 667-999-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MD | 876D | ELKRIDGE | MD |
| 2015-03-25 | 667-999-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MD | 876D | ELKRIDGE | MD |
| 2015-03-25 | 667-999-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MD | 876D | ELKRIDGE | MD |
| 2015-03-25 | 667-999-9XXX | 9000–9999 | Assigned | ONVOY, LLC - MD | 876D | ELKRIDGE | MD |
| 2015-03-18 | 667-219-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | BALTIMORE | MD |
| 2015-03-18 | 667-930-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MD | 876D | BALTIMORE | MD |
| 2015-03-17 | 667-207-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | BALTIMORE | MD |
| 2015-03-17 | 667-218-8XXX | 8000–8999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | BALTIMORE | 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.