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 |
|---|---|---|---|---|---|---|---|
| 2009-01-23 | 603-204-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NASHUA | NH |
| 2009-01-21 | 603-834-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | DOVER | NH |
| 2009-01-06 | 603-562-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - NH | 6290 | PETERBROGH | NH |
| 2009-01-05 | 603-204-0XXX | 0000–0999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | NASHUA | NH |
| 2009-01-05 | 603-362-2XXX | 2000–2999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | HAMPSTEAD | NH |
| 2009-01-05 | 603-393-4XXX | 4000–4999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | LACONIA | NH |
| 2008-12-19 | 603-238-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PLYMOUTH | NH |
| 2008-12-19 | 603-277-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HANOVER | NH |
| 2008-12-19 | 603-283-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | KEENE | NH |
| 2008-12-19 | 603-286-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | TILTON | NH |
| 2008-12-19 | 603-306-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | LEBANON | NH |
| 2008-12-19 | 603-326-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BERLIN | NH |
| 2008-12-19 | 603-337-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | ROCHESTER | NH |
| 2008-12-19 | 603-366-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | LACONIA | NH |
| 2008-12-19 | 603-374-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BARTLETT | NH |
| 2008-12-19 | 603-418-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | EXETER | NH |
| 2008-12-19 | 603-465-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HOLLIS | NH |
| 2008-12-19 | 603-515-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WOLFEBORO | NH |
| 2008-12-19 | 603-593-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | JAFFREY | NH |
| 2008-12-19 | 603-733-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NO CONWAY | NH |
| 2008-12-19 | 603-841-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SOMERSWTH | NH |
| 2008-12-19 | 603-915-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | GORHAM | NH |
| 2008-12-19 | 603-937-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MEREDITH | NH |
| 2008-12-05 | 603-341-4XXX | 4000–4999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | MERRIMACK | NH |
| 2008-12-05 | 603-730-7XXX | 7000–7999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | NO CONWAY | NH |
| 2008-12-04 | 603-210-0XXX | 0000–0999 | Assigned | OTEL TELEKOM, INC. - NH | 9827 | SUNCOOK | NH |
| 2008-12-02 | 603-217-7XXX | 7000–7999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | BRISTOL | NH |
| 2008-12-02 | 603-412-2XXX | 2000–2999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | PLYMOUTH | NH |
| 2008-12-02 | 603-662-2XXX | 2000–2999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | CONWAY | NH |
| 2008-12-02 | 603-790-0XXX | 0000–0999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | W LEBANON | NH |
| 2008-12-02 | 603-915-6XXX | 6000–6999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | GORHAM | NH |
| 2008-11-14 | 603-660-5XXX | 5000–5999 | Assigned | OTEL TELEKOM, INC. - NH | 9827 | GOFFSTOWN | NH |
| 2008-11-06 | 603-204-4XXX | 4000–4999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | NASHUA | NH |
| 2008-11-06 | 603-247-9XXX | 9000–9999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | DERRY | NH |
| 2008-11-06 | 603-259-6XXX | 6000–6999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | LITTLETON | NH |
| 2008-11-06 | 603-393-2XXX | 2000–2999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | LACONIA | NH |
| 2008-11-06 | 603-609-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | DOVER | NH |
| 2008-11-06 | 603-716-6XXX | 6000–6999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | MANCHESTER | NH |
| 2008-11-06 | 603-933-3XXX | 3000–3999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | GREENFIELD | NH |
| 2008-10-20 | 603-290-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CONCORD | NH |
| 2008-10-20 | 603-290-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CONCORD | NH |
| 2008-10-20 | 603-290-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CONCORD | NH |
| 2008-10-16 | 603-351-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | GOFFSTOWN | NH |
| 2008-10-16 | 603-818-0XXX | 0000–0999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | DERRY | NH |
| 2008-10-06 | 603-372-6XXX | 6000–6999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | CLAREMONT | NH |
| 2008-10-06 | 603-397-9XXX | 9000–9999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | DURHAM | NH |
| 2008-10-06 | 603-657-8XXX | 8000–8999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | MANCHESTER | NH |
| 2008-10-06 | 603-728-9XXX | 9000–9999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | NOWOODSTOK | NH |
| 2008-10-06 | 603-856-3XXX | 3000–3999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | CONCORD | NH |
| 2008-10-06 | 603-918-1XXX | 1000–1999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | HAMPTON | 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.