NumberResearchRecent thousands-block assignments
70 blocks assigned in the last 30 days · 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, 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 |
|---|---|---|---|---|---|---|---|
| 2015-03-17 | 667-218-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | BALTIMORE | MD |
| 2015-03-17 | 667-219-1XXX | 1000–1999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | BALTIMORE | MD |
| 2015-03-17 | 667-219-8XXX | 8000–8999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | BALTIMORE | MD |
| 2015-03-17 | 667-219-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | BALTIMORE | MD |
| 2015-03-17 | 667-224-1XXX | 1000–1999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | BALTIMORE | MD |
| 2015-03-09 | 667-218-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MD | 876D | BALTIMORE | MD |
| 2015-03-09 | 667-218-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MD | 876D | BALTIMORE | MD |
| 2015-03-09 | 667-218-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MD | 876D | BALTIMORE | MD |
| 2015-02-23 | 667-802-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | CATONSVL | MD |
| 2015-02-17 | 667-233-0XXX | 0000–0999 | Assigned | VERIZON MARYLAND, INC. | 9212 | BALTIMORE | MD |
| 2015-02-17 | 667-233-1XXX | 1000–1999 | Assigned | VERIZON MARYLAND, INC. | 9212 | BALTIMORE | MD |
| 2015-02-17 | 667-233-2XXX | 2000–2999 | Assigned | VERIZON MARYLAND, INC. | 9212 | BALTIMORE | MD |
| 2015-02-17 | 667-233-3XXX | 3000–3999 | Assigned | VERIZON MARYLAND, INC. | 9212 | BALTIMORE | MD |
| 2015-02-17 | 667-233-4XXX | 4000–4999 | Assigned | VERIZON MARYLAND, INC. | 9212 | BALTIMORE | MD |
| 2015-02-17 | 667-233-5XXX | 5000–5999 | Assigned | VERIZON MARYLAND, INC. | 9212 | BALTIMORE | MD |
| 2015-02-17 | 667-233-6XXX | 6000–6999 | Assigned | VERIZON MARYLAND, INC. | 9212 | BALTIMORE | MD |
| 2015-02-17 | 667-233-7XXX | 7000–7999 | Assigned | VERIZON MARYLAND, INC. | 9212 | BALTIMORE | MD |
| 2015-02-17 | 667-233-8XXX | 8000–8999 | Assigned | VERIZON MARYLAND, INC. | 9212 | BALTIMORE | MD |
| 2015-02-17 | 667-233-9XXX | 9000–9999 | Assigned | VERIZON MARYLAND, INC. | 9212 | BALTIMORE | MD |
| 2015-01-26 | 667-228-7XXX | 7000–7999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | ABERDEEN | MD |
| 2015-01-26 | 667-228-8XXX | 8000–8999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | ABERDEEN | MD |
| 2015-01-26 | 667-228-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | ABERDEEN | MD |
| 2015-01-15 | 667-217-7XXX | 7000–7999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | BALTIMORE | MD |
| 2015-01-15 | 667-217-8XXX | 8000–8999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | BALTIMORE | MD |
| 2015-01-15 | 667-217-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | BALTIMORE | MD |
| 2015-01-15 | 667-218-1XXX | 1000–1999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | BALTIMORE | MD |
| 2015-01-05 | 667-205-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD | 7228 | BALTIMORE | MD |
| 2014-12-29 | 667-251-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | TOWSON | MD |
| 2014-12-29 | 667-251-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | TOWSON | MD |
| 2014-12-29 | 667-251-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | TOWSON | MD |
| 2014-12-29 | 667-251-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | TOWSON | MD |
| 2014-12-29 | 667-251-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | TOWSON | MD |
| 2014-12-29 | 667-251-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | TOWSON | MD |
| 2014-12-29 | 667-251-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | TOWSON | MD |
| 2014-12-29 | 667-251-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | TOWSON | MD |
| 2014-12-29 | 667-251-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | TOWSON | MD |
| 2014-12-29 | 667-251-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | TOWSON | MD |
| 2014-12-15 | 667-217-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | BALTIMORE | MD |
| 2014-12-15 | 667-217-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | BALTIMORE | MD |
| 2014-12-15 | 667-217-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | BALTIMORE | MD |
| 2014-12-15 | 667-217-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | BALTIMORE | MD |
| 2014-12-15 | 667-217-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | BALTIMORE | MD |
| 2014-11-14 | 667-213-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MD | 876D | BALTIMORE | MD |
| 2014-11-14 | 667-213-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MD | 876D | BALTIMORE | MD |
| 2014-11-14 | 667-213-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MD | 876D | BALTIMORE | MD |
| 2014-11-14 | 667-213-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MD | 876D | BALTIMORE | MD |
| 2014-11-13 | 667-216-3XXX | 3000–3999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | BALTIMORE | MD |
| 2014-11-13 | 667-216-4XXX | 4000–4999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | BALTIMORE | MD |
| 2014-11-13 | 667-216-5XXX | 5000–5999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | BALTIMORE | MD |
| 2014-11-13 | 667-216-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | BALTIMORE | 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.