NumberResearchRecent thousands-block assignments
0 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, all time — NPA 301
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 |
|---|---|---|---|---|---|---|---|
| 2026-07-09 | 301-844-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | WSHNGTNZN3 | MD |
| 2026-06-15 | 301-705-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | WALDORF | MD |
| 2026-04-09 | 301-558-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | WSNG236Z13 | MD |
| 2026-04-09 | 301-558-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | WSNG236Z13 | MD |
| 2025-04-16 | 301-886-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | WSNG236Z13 | MD |
| 2024-12-05 | 301-923-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | WSNG236Z13 | MD |
| 2024-11-08 | 301-923-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | WSNG236Z13 | MD |
| 2022-09-22 | 301-448-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | WSHNGTNZN3 | MD |
| 2022-07-25 | 301-450-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | WSHNGTNZN3 | MD |
| 2022-07-25 | 301-450-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | WSHNGTNZN3 | MD |
| 2022-07-25 | 301-450-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | WSHNGTNZN3 | MD |
| 2022-07-25 | 301-450-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | WSHNGTNZN3 | MD |
| 2022-07-25 | 301-450-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | WSHNGTNZN3 | MD |
| 2020-08-13 | 301-708-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | LAUREL238 | MD |
| 2020-05-14 | 301-578-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | WSHNGTNZN3 | MD |
| 2020-05-14 | 301-578-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | WSHNGTNZN3 | MD |
| 2019-08-12 | 301-941-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | WSHNGTNZN2 | MD |
| 2019-06-19 | 301-810-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | BUCKEYSTN | MD |
| 2019-04-08 | 301-941-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | WSHNGTNZN2 | MD |
| 2018-09-21 | 301-664-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | WSHNGTNZN2 | MD |
| 2018-09-21 | 301-941-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | WSHNGTNZN2 | MD |
| 2018-06-19 | 301-578-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | WSHNGTNZN3 | MD |
| 2018-05-11 | 301-447-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | EMMITSBURG | MD |
| 2015-10-12 | 301-264-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | MT SAVAGE | MD |
| 2015-10-12 | 301-453-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | KITZMILLER | MD |
| 2015-10-12 | 301-750-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | FRIENDSVL | MD |
| 2015-10-08 | 301-478-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | FLINTSTONE | MD |
| 2015-09-29 | 301-304-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | WALKERSVL | MD |
| 2015-09-29 | 301-363-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | DAMASCS240 | MD |
| 2015-09-29 | 301-857-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | CLEAR SPG | MD |
| 2015-09-29 | 301-882-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | NEW MARKET | MD |
| 2015-09-29 | 301-969-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | BRUNSWICK | MD |
| 2015-09-28 | 301-687-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | FROSTBURG | MD |
| 2015-07-13 | 301-245-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | BITTINGER | MD |
| 2015-07-13 | 301-453-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | KITZMILLER | MD |
| 2015-07-13 | 301-750-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | FRIENDSVL | MD |
| 2015-06-08 | 301-264-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | MT SAVAGE | MD |
| 2015-05-26 | 301-895-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | GRANTSVL | MD |
| 2015-05-08 | 301-845-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | WALKERSVL | MD |
| 2015-04-24 | 301-329-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | ASHTON238 | MD |
| 2015-04-21 | 301-228-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | FREDERICK | MD |
| 2015-04-21 | 301-246-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | NANJEMOY | MD |
| 2015-04-21 | 301-732-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | FREDERICK | MD |
| 2015-04-17 | 301-857-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | CLEAR SPG | MD |
| 2015-04-17 | 301-857-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | CLEAR SPG | MD |
| 2015-04-14 | 301-265-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | WSHNGTNZN6 | MD |
| 2015-02-06 | 301-494-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | WSNG238Z15 | MD |
| 2015-02-03 | 301-264-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | MT SAVAGE | MD |
| 2015-02-03 | 301-359-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | WESTERNPT | MD |
| 2015-02-03 | 301-463-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | LONACONING | 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.