NumberResearchRecent thousands-block assignments
9 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 603
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 |
|---|---|---|---|---|---|---|---|
| 2026-04-08 | 603-829-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SUNAPEE | NH |
| 2026-04-06 | 603-340-9XXX | 9000–9999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | SUNCOOK | NH |
| 2026-03-06 | 603-347-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | KINGSTON | NH |
| 2026-03-06 | 603-372-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CLAREMONT | NH |
| 2026-03-06 | 603-388-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | COLEBROOK | NH |
| 2026-03-06 | 603-467-1XXX | 1000–1999 | Assigned | WAVENATION, LLC | 700J | MANCHESTER | NH |
| 2026-03-06 | 603-712-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | PIKE | NH |
| 2026-03-06 | 603-779-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | PLYMOUTH | NH |
| 2026-02-25 | 603-327-3XXX | 3000–3999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | SALEM | NH |
| 2026-02-25 | 603-351-4XXX | 4000–4999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | GOFFSTOWN | NH |
| 2026-02-25 | 603-472-0XXX | 0000–0999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | BEDFORD | NH |
| 2026-02-25 | 603-916-3XXX | 3000–3999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | MEREDITH | NH |
| 2026-02-19 | 603-501-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PORTSMOUTH | NH |
| 2026-02-18 | 603-218-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MANCHESTER | NH |
| 2026-02-18 | 603-253-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CENTER HBR | NH |
| 2026-02-18 | 603-327-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SALEM | NH |
| 2026-02-18 | 603-420-3XXX | 3000–3999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | MERRIMACK | NH |
| 2026-02-18 | 603-588-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ANTRIM | NH |
| 2026-02-18 | 603-590-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | DURHAM | NH |
| 2026-02-18 | 603-718-7XXX | 7000–7999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | NASHUA | NH |
| 2026-02-18 | 603-776-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BARNSTEAD | NH |
| 2026-02-18 | 603-859-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | NEW DURHAM | NH |
| 2026-02-18 | 603-875-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ALTON | NH |
| 2026-02-18 | 603-877-2XXX | 2000–2999 | Assigned | ONVOY, LLC - NH | 637E | NEW LONDON | NH |
| 2026-02-18 | 603-938-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BRADFORD | NH |
| 2026-01-29 | 603-273-3XXX | 3000–3999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | LACONIA | NH |
| 2026-01-29 | 603-287-0XXX | 0000–0999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | CLAREMONT | NH |
| 2026-01-29 | 603-342-6XXX | 6000–6999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | BERLIN | NH |
| 2026-01-29 | 603-896-2XXX | 2000–2999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | SALEM | NH |
| 2026-01-20 | 603-873-8XXX | 8000–8999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | SUNAPEE | NH |
| 2026-01-07 | 603-708-9XXX | 9000–9999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | CANTERBURY | NH |
| 2026-01-05 | 603-325-6XXX | 6000–6999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | NEW BOSTON | NH |
| 2026-01-05 | 603-513-4XXX | 4000–4999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | CONCORD | NH |
| 2026-01-05 | 603-587-4XXX | 4000–4999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | CANDIA | NH |
| 2026-01-05 | 603-857-2XXX | 2000–2999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | SUNCOOK | NH |
| 2026-01-05 | 603-901-4XXX | 4000–4999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | CONWAY | NH |
| 2025-12-31 | 603-258-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HOLLIS | NH |
| 2025-12-30 | 603-721-3XXX | 3000–3999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | MILFORD | NH |
| 2025-12-29 | 603-580-0XXX | 0000–0999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | EXETER | NH |
| 2025-12-23 | 603-258-5XXX | 5000–5999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | HOLLIS | NH |
| 2025-12-23 | 603-337-8XXX | 8000–8999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | ROCHESTER | NH |
| 2025-12-19 | 603-797-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | PLAISTOW | NH |
| 2025-12-17 | 603-483-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CANDIA | NH |
| 2025-12-16 | 603-571-6XXX | 6000–6999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | DERRY | NH |
| 2025-12-16 | 603-690-1XXX | 1000–1999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | CLAREMONT | NH |
| 2025-12-11 | 603-575-3XXX | 3000–3999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | LITTLETON | NH |
| 2025-12-08 | 603-916-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MEREDITH | NH |
| 2025-12-04 | 603-702-9XXX | 9000–9999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | KINGSTON | NH |
| 2025-12-02 | 603-975-7XXX | 7000–7999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | BOSCAWEN | NH |
| 2025-11-18 | 603-503-4XXX | 4000–4999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | LANCASTER | NH |
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.