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 |
|---|---|---|---|---|---|---|---|
| 2022-09-16 | 667-296-9XXX | 9000–9999 | Assigned | ONVOY, LLC - MD | 876D | REISTERSTN | MD |
| 2022-09-16 | 667-339-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MD | 876D | SYKESVILLE | MD |
| 2022-09-16 | 667-383-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MD | 876D | TOWSON | MD |
| 2022-09-16 | 667-383-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MD | 876D | TOWSON | MD |
| 2022-09-16 | 667-393-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MD | 876D | MILLERSVL | MD |
| 2022-09-16 | 667-408-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MD | 876D | ANNAPOLIS | MD |
| 2022-09-16 | 667-408-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MD | 876D | ANNAPOLIS | MD |
| 2022-09-16 | 667-467-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MD | 876D | DENTON | MD |
| 2022-09-16 | 667-755-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MD | 876D | PIKESVILLE | MD |
| 2022-09-16 | 667-772-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MD | 876D | SPARKSGLNC | MD |
| 2022-09-16 | 667-778-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MD | 876D | SPARROWSPT | MD |
| 2022-09-16 | 667-897-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MD | 876D | CHESAPKECY | MD |
| 2022-09-15 | 667-322-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MD | 876D | WATERLO236 | MD |
| 2022-09-15 | 667-566-6XXX | 6000–6999 | Assigned | COMMIO, LLC | 939H | STEVENSVL | MD |
| 2022-09-15 | 667-877-7XXX | 7000–7999 | Assigned | COMMIO, LLC | 939H | PIKESVILLE | MD |
| 2022-09-07 | 667-304-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | ESSEX | MD |
| 2022-09-07 | 667-338-9XXX | 9000–9999 | Assigned | VONAGE AMERICA LLC | 197D | CROFTON | MD |
| 2022-09-01 | 667-294-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | TOWSON | MD |
| 2022-09-01 | 667-333-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | ARGRGBSNIS | MD |
| 2022-09-01 | 667-371-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | ELLICOTTCY | MD |
| 2022-09-01 | 667-406-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | BALTIMORE | MD |
| 2022-09-01 | 667-406-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | BALTIMORE | MD |
| 2022-09-01 | 667-413-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | ARGRGBSNIS | MD |
| 2022-09-01 | 667-647-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NORTH EAST | MD |
| 2022-08-30 | 667-358-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MD | 876D | EASTON | MD |
| 2022-08-30 | 667-358-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MD | 876D | EASTON | MD |
| 2022-08-30 | 667-374-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MD | 876D | WATERLO238 | MD |
| 2022-08-30 | 667-409-1XXX | 1000–1999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | PARKVILLE | MD |
| 2022-08-30 | 667-925-4XXX | 4000–4999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | BEL AIR | MD |
| 2022-08-29 | 667-358-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | EASTON | MD |
| 2022-08-23 | 667-389-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CAMBRIDGE | MD |
| 2022-08-23 | 667-626-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | CATONSVL | MD |
| 2022-08-23 | 667-626-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | CATONSVL | MD |
| 2022-08-22 | 667-319-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | CHESTERTN | MD |
| 2022-08-22 | 667-925-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | BEL AIR | MD |
| 2022-08-22 | 667-925-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | BEL AIR | MD |
| 2022-08-18 | 667-348-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | RIDGELY | MD |
| 2022-08-16 | 667-274-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | ELKRIDGE | MD |
| 2022-08-16 | 667-405-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | GLENBURNIE | MD |
| 2022-08-16 | 667-405-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | GLENBURNIE | MD |
| 2022-08-16 | 667-405-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | GLENBURNIE | MD |
| 2022-08-16 | 667-410-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SEVERN | MD |
| 2022-08-16 | 667-410-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SEVERN | MD |
| 2022-08-16 | 667-412-1XXX | 1000–1999 | Assigned | NUSO, LLC | 732J | EASTON | MD |
| 2022-08-16 | 667-413-1XXX | 1000–1999 | Assigned | NUSO, LLC | 732J | ARGRGBSNIS | MD |
| 2022-08-15 | 667-388-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SEVERN | MD |
| 2022-08-15 | 667-388-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SEVERN | MD |
| 2022-08-11 | 667-399-6XXX | 6000–6999 | Assigned | TELNYX LLC | 073H | UNION BDG | MD |
| 2022-08-10 | 667-389-7XXX | 7000–7999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | CAMBRIDGE | MD |
| 2022-08-10 | 667-576-1XXX | 1000–1999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | JARRETTSVL | 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.