NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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 856
MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 33
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
2004-12-10 856-203-8XXX 8000–8999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 CAMDEN NJ
2004-02-25 856-202-1XXX 1000–1999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 WOODBURY NJ
2004-02-25 856-203-9XXX 9000–9999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 CAMDEN NJ
2004-02-25 856-219-1XXX 1000–1999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 BEAVER BRK NJ
2004-02-25 856-221-1XXX 1000–1999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 BRIDGETON NJ
2004-02-25 856-226-2XXX 2000–2999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 GLASSBORO NJ
2004-02-25 856-240-2XXX 2000–2999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 COLLINGSWD NJ
2004-02-25 856-245-1XXX 1000–1999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 BLACKWOOD NJ
2004-02-25 856-248-2XXX 2000–2999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 LAUREL SPG NJ
2004-02-25 856-252-1XXX 1000–1999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 MOORESTOWN NJ
2004-02-25 856-267-2XXX 2000–2999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 MARLTON NJ
2004-02-25 856-269-1XXX 1000–1999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 PITMAN NJ
2004-02-25 856-275-2XXX 2000–2999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 SALEM NJ
2004-02-25 856-276-1XXX 1000–1999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 PENNSGROVE NJ
2004-02-25 856-284-2XXX 2000–2999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 PAULSBORO NJ
2004-02-25 856-292-2XXX 2000–2999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 WENONAH NJ
2004-02-25 856-306-2XXX 2000–2999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 BERLIN NJ
2004-02-25 856-323-2XXX 2000–2999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 HADDON HTS NJ
2004-02-25 856-325-2XXX 2000–2999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 HADDONFLD NJ
2004-02-25 856-330-2XXX 2000–2999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 MERCHANTVL NJ
2004-02-25 856-343-1XXX 1000–1999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 MULLICA HL NJ
2004-02-25 856-349-1XXX 1000–1999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 GLOUCESTER NJ
2004-02-25 856-350-2XXX 2000–2999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 FRANKLINVL NJ
2004-02-25 856-362-2XXX 2000–2999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 VINELAND NJ
2004-02-25 856-363-2XXX 2000–2999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 ELMER NJ
2004-02-25 856-367-2XXX 2000–2999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 CEDARVILLE NJ
2004-02-25 856-385-1XXX 1000–1999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 RIVERSIDE NJ
2004-02-25 856-413-2XXX 2000–2999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 MILLVILLE NJ
2004-02-25 856-421-2XXX 2000–2999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 PORTNORRIS NJ
2004-02-25 856-499-1XXX 1000–1999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 RIVERTON NJ
2004-02-25 856-513-1XXX 1000–1999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 WILLIAMSTN NJ
2004-02-25 856-624-2XXX 2000–2999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 WOODSTOWN NJ
2004-02-25 856-803-2XXX 2000–2999Assigned MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 SWEDESBORO NJ

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.