NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

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 609
MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 38
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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2008-08-13 609-362-0XXX 0000–0999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 EWING NJ
2008-08-12 609-303-1XXX 1000–1999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 PENNINGTON NJ
2008-08-12 609-557-0XXX 0000–0999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 LAWRENCEVL NJ
2008-08-12 609-779-0XXX 0000–0999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 PLAINSBORO NJ
2007-04-17 609-857-0XXX 0000–0999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 TUCKERTON NJ
2007-03-02 609-488-3XXX 3000–3999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 BARNEGAT NJ
2004-09-23 609-207-4XXX 4000–4999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 BEACHHAVEN NJ
2004-09-23 609-231-2XXX 2000–2999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 CAPMAYCTHS NJ
2004-09-23 609-241-3XXX 3000–3999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 PLEASANTVL NJ
2004-09-23 609-270-2XXX 2000–2999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 HAMMONTON NJ
2004-09-23 609-427-5XXX 5000–5999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 DENNISVL NJ
2004-09-23 609-486-3XXX 3000–3999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 SEAIS CITY NJ
2004-09-23 609-545-4XXX 4000–4999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 OCEAN CITY NJ
2004-09-23 609-593-1XXX 1000–1999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 EGG HARBOR NJ
2004-09-23 609-616-8XXX 8000–8999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 MILMAY NJ
2004-09-23 609-628-5XXX 5000–5999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 TUCKAHOE NJ
2004-09-23 609-675-2XXX 2000–2999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 WILDWOOD NJ
2004-09-23 609-788-6XXX 6000–6999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 SOMERS PT NJ
2004-09-23 609-796-1XXX 1000–1999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 AVALON NJ
2004-09-23 609-829-6XXX 6000–6999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 MAYS LDG NJ
2004-09-23 609-948-1XXX 1000–1999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 BRIGANTINE NJ
2004-02-26 609-223-1XXX 1000–1999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 ALLENTOWN NJ
2004-02-26 609-248-1XXX 1000–1999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 PEMBERTON NJ
2004-02-26 609-257-1XXX 1000–1999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 MEDFORD NJ
2004-02-26 609-301-1XXX 1000–1999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 HIGHTSTOWN NJ
2004-02-26 609-326-1XXX 1000–1999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 BURLINGTON NJ
2004-02-26 609-341-1XXX 1000–1999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 TRENTON NJ
2004-02-26 609-356-1XXX 1000–1999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 PRINCETON NJ
2004-02-26 609-360-1XXX 1000–1999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 FLORENCE NJ
2004-02-26 609-424-1XXX 1000–1999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 BORDENTOWN NJ
2004-02-26 609-460-1XXX 1000–1999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 LAMBERTVL NJ
2004-02-26 609-495-1XXX 1000–1999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 CRANBURY NJ
2004-02-26 609-527-1XXX 1000–1999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 HOPEWELL NJ
2004-02-26 609-528-1XXX 1000–1999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 MERCERVL NJ
2004-02-26 609-534-1XXX 1000–1999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 MOUNTHOLLY NJ
2004-02-26 609-535-1XXX 1000–1999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 VINCENTOWN NJ
2004-02-26 609-556-1XXX 1000–1999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 FORT DIX NJ
2004-02-26 609-738-1XXX 1000–1999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 NEW EGYPT NJ

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.