NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

2 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 781
NEW CINGULAR WIRELESS PCS, LLC - DC 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 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
2004-11-30 781-277-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J WEYMOUTH MA
2004-11-30 781-325-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J LEXINGTON MA
2004-11-30 781-524-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J WHITMAN MA
2004-11-30 781-914-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J WAKEFIELD MA
2004-11-12 781-267-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 BRAINTREE MA
2004-11-01 781-922-1XXX 1000–1999Assigned METROPCS, INC. 5562 REVERE MA
2004-10-25 781-314-0XXX 0000–0999Assigned PAETEC ITEL, LLC 829J WALTHAM MA
2004-10-22 781-202-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J BURLINGTON MA
2004-10-22 781-989-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J CANTON MA
2004-10-19 781-618-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J WHITMAN MA
2004-10-12 781-210-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J COHASSET MA
2004-10-12 781-630-3XXX 3000–3999Assigned METROPCS, INC. 5562 HINGHAM MA
2004-10-12 781-831-8XXX 8000–8999Assigned METROPCS, INC. 5562 KINGSTON MA
2004-10-12 781-995-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 WOBURN MA
2004-10-08 781-635-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 NORWELL MA
2004-10-08 781-801-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 DEDHAM MA
2004-09-30 781-421-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J ROCKLAND MA
2004-09-28 781-305-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WOBURN MA
2004-09-28 781-305-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WOBURN MA
2004-09-24 781-318-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J STOUGHTON MA
2004-09-24 781-835-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J STONEHAM MA
2004-09-21 781-333-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 MALDEN MA
2004-09-21 781-645-2XXX 2000–2999Assigned METROPCS, INC. 5562 ARLINGTON MA
2004-09-08 781-214-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 HULL MA
2004-09-08 781-922-0XXX 0000–0999Assigned METROPCS, INC. 5562 REVERE MA
2004-08-31 781-780-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 LYNN MA
2004-08-27 781-325-5XXX 5000–5999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 LEXINGTON MA
2004-08-27 781-536-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J MARSHFIELD MA
2004-08-26 781-702-0XXX 0000–0999Assigned METROPCS, INC. 5562 NORWOOD MA
2004-08-24 781-810-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 WALTHAM MA
2004-08-18 781-318-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 STOUGHTON MA
2004-08-16 781-501-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J NORWOOD MA
2004-08-16 781-616-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J ROCKLAND MA
2004-08-16 781-709-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J HANOVER MA
2004-08-09 781-218-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 WINCHESTER MA
2004-08-09 781-253-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 SHARON MA
2004-08-09 781-285-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 DUXBURY MA
2004-08-09 781-312-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 HANOVER MA
2004-08-09 781-318-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 STOUGHTON MA
2004-08-09 781-319-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 MARSHFIELD MA
2004-08-09 781-451-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 WAKEFIELD MA
2004-08-09 781-476-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 MARBLEHEAD MA
2004-08-09 781-489-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 WELLESLEY MA
2004-08-09 781-517-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 MELROSE MA
2004-08-09 781-544-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 SCITUATE MA
2004-08-09 781-561-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 NORWELL MA
2004-08-09 781-583-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 ARLINGTON MA
2004-08-09 781-618-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 WHITMAN MA
2004-08-09 781-670-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 READING MA
2004-08-09 781-728-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 LINCOLN 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.