NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

7 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, last 30 days — NPA 508
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 4
PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 1
OMNIPOINT MIAMI E LICENSE, LLC 1
AHOI LLC 1
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
2004-08-26 508-202-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FRAMINGHAM MA
2004-08-26 508-250-4XXX 4000–4999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 FRAMINGHAM MA
2004-08-18 508-812-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 NO SWANSEA MA
2004-08-18 508-859-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 LEICESTER MA
2004-08-11 508-298-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J FRANKLIN MA
2004-08-09 508-242-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 MEDFIELD MA
2004-08-09 508-247-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 ORLEANS MA
2004-08-09 508-252-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 REHOBOTH MA
2004-08-09 508-257-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 SIASCONSET MA
2004-08-09 508-273-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 WAREHAM MA
2004-08-09 508-282-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 MILFORD MA
2004-08-09 508-401-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 WAYLAND MA
2004-08-09 508-413-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 PROVINCETN MA
2004-08-09 508-419-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 OSTERVILLE MA
2004-08-09 508-476-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 E DOUGLAS MA
2004-08-09 508-499-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 OXFORD MA
2004-08-09 508-581-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 MILLBURY MA
2004-08-09 508-603-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 UPTON MA
2004-08-09 508-637-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 NOBROOKFLD MA
2004-08-09 508-640-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 WEBSTER MA
2004-08-09 508-644-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 ASSONET MA
2004-08-09 508-645-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 CHILMARK MA
2004-08-09 508-669-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 DIGHTON MA
2004-08-09 508-743-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 BUZZARDSBY MA
2004-08-09 508-744-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 BARNSTABLE MA
2004-08-09 508-758-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 MATTAPOSTT MA
2004-08-09 508-815-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 HYANNIS MA
2004-08-09 508-866-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 CARVER MA
2004-08-09 508-869-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 BOYLSTON MA
2004-08-09 508-876-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 BLACKSTONE MA
2004-08-09 508-882-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 OAKHAM MA
2004-08-09 508-886-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 RUTLAND MA
2004-08-09 508-901-0XXX 0000–0999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 NANTUCKET MA
2004-08-09 508-909-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 SOUTHBDG MA
2004-08-09 508-923-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 MIDDLEBORO MA
2004-08-09 508-925-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 SHREWSBURY MA
2004-08-09 508-927-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 PLYMOUTH MA
2004-08-09 508-934-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 DOVER MA
2004-08-09 508-939-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 EDGARTOWN MA
2004-08-09 508-966-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 BELLINGHAM MA
2004-08-03 508-466-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J NORTHBORO MA
2004-07-15 508-340-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 WORCESTER MA
2004-07-14 508-639-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J SOUTHGATE MA
2004-07-14 508-892-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J LEICESTER MA
2004-07-12 508-304-3XXX 3000–3999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WORCESTER MA
2004-07-12 508-459-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J WORCESTER MA
2004-07-12 508-802-7XXX 7000–7999Assigned METROPCS, INC. 5562 TAUNTON MA
2004-07-12 508-802-8XXX 8000–8999Assigned METROPCS, INC. 5562 TAUNTON MA
2004-07-07 508-240-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 ORLEANS MA
2004-07-07 508-404-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 WALPOLE MA

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.