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
2005-06-03 781-776-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J LYNNFIELD MA
2005-05-31 781-217-8XXX 8000–8999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 KINGSTON MA
2005-05-06 781-307-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 SAUGUS MA
2005-05-06 781-307-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 SAUGUS MA
2005-05-06 781-635-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 NORWELL MA
2005-05-06 781-635-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 NORWELL MA
2005-05-06 781-717-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J WINCHESTER MA
2005-05-06 781-752-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 DEDHAM MA
2005-05-03 781-426-1XXX 1000–1999Assigned METROPCS, INC. 5562 REVERE MA
2005-04-26 781-916-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 WALTHAM MA
2005-04-26 781-916-9XXX 9000–9999Assigned PAETEC ITEL, LLC 829J WALTHAM MA
2005-04-26 781-996-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 WALTHAM MA
2005-04-26 781-996-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 WALTHAM MA
2005-04-14 781-948-8XXX 8000–8999Assigned METROPCS, INC. 5562 NORWOOD MA
2005-04-11 781-536-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J MARSHFIELD MA
2005-04-06 781-218-1XXX 1000–1999Assigned FREEDOM RING COMMUNICATIONS, LLC 8468 WINCHESTER MA
2005-04-04 781-726-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J NEEDHAM MA
2005-04-01 781-519-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 BRAINTREE MA
2005-04-01 781-519-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 BRAINTREE MA
2005-03-29 781-651-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 LYNNFIELD MA
2005-03-24 781-918-1XXX 1000–1999Assigned TC SYSTEMS, INC. 7135 LEXINGTON MA
2005-03-24 781-918-2XXX 2000–2999Assigned TC SYSTEMS, INC. 7135 LEXINGTON MA
2005-03-24 781-918-5XXX 5000–5999Assigned TC SYSTEMS, INC. 7135 LEXINGTON MA
2005-03-22 781-216-0XXX 0000–0999Assigned VERIZON NEW ENGLAND INC. 9102 WALTHAM MA
2005-03-22 781-216-1XXX 1000–1999Assigned VERIZON NEW ENGLAND INC. 9102 WALTHAM MA
2005-03-22 781-216-2XXX 2000–2999Assigned VERIZON NEW ENGLAND INC. 9102 WALTHAM MA
2005-03-22 781-216-3XXX 3000–3999Assigned VERIZON NEW ENGLAND INC. 9102 WALTHAM MA
2005-03-21 781-471-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 DEDHAM MA
2005-03-21 781-471-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 DEDHAM MA
2005-03-21 781-471-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 DEDHAM MA
2005-03-18 781-257-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 LINCOLN MA
2005-03-08 781-218-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J WINCHESTER MA
2005-03-08 781-352-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J NORWOOD MA
2005-03-08 781-374-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J HINGHAM MA
2005-03-08 781-474-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J NEEDHAM MA
2005-03-08 781-475-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J MEDFORD MA
2005-03-08 781-484-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J SAUGUS MA
2005-03-08 781-626-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J WEYMOUTH MA
2005-03-08 781-652-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J LEXINGTON MA
2005-03-08 781-832-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J STONEHAM MA
2005-03-08 781-850-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 STONEHAM MA
2005-03-08 781-850-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 STONEHAM MA
2005-03-08 781-909-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J READING MA
2005-03-08 781-992-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J WELLESLEY MA
2005-03-07 781-752-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 DEDHAM MA
2005-03-03 781-222-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J BURLINGTON MA
2005-03-03 781-232-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J CANTON MA
2005-03-03 781-353-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J BRAINTREE MA
2005-03-03 781-381-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J DEDHAM MA
2005-02-18 781-995-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 WOBURN 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.