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
2005-02-18 781-995-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 WOBURN MA
2005-02-16 781-780-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 LYNN MA
2005-02-15 781-519-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 BRAINTREE MA
2005-02-11 781-859-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J ARLINGTON MA
2005-02-08 781-314-1XXX 1000–1999Assigned FREEDOM RING COMMUNICATIONS, LLC 8468 WALTHAM MA
2005-02-07 781-439-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 READING MA
2005-02-07 781-439-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 READING MA
2005-02-07 781-507-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 STONEHAM MA
2005-02-07 781-752-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 DEDHAM MA
2005-02-07 781-974-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 WEYMOUTH MA
2005-02-02 781-651-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 LYNNFIELD MA
2005-01-26 781-336-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 KINGSTON MA
2005-01-26 781-347-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 ROCKLAND MA
2005-01-26 781-352-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 NORWOOD MA
2005-01-25 781-626-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WEYMOUTH MA
2005-01-25 781-626-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WEYMOUTH MA
2005-01-25 781-626-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WEYMOUTH MA
2005-01-25 781-626-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WEYMOUTH MA
2005-01-20 781-489-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J WELLESLEY MA
2005-01-20 781-720-8XXX 8000–8999Assigned METROPCS, INC. 5562 MELROSE MA
2005-01-17 781-521-3XXX 3000–3999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 SAUGUS MA
2005-01-15 781-350-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 MEDFORD MA
2005-01-15 781-559-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 NEEDHAM MA
2005-01-14 781-708-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 DEDHAM MA
2005-01-06 781-241-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 REVERE MA
2005-01-05 781-346-1XXX 1000–1999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 LYNN MA
2005-01-05 781-346-2XXX 2000–2999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 LYNN MA
2004-12-29 781-336-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 KINGSTON MA
2004-12-22 781-493-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J DEDHAM MA
2004-12-20 781-325-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 LEXINGTON MA
2004-12-20 781-350-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 MEDFORD MA
2004-12-08 781-507-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 STONEHAM MA
2004-12-08 781-561-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 NORWELL MA
2004-12-08 781-636-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 DEDHAM MA
2004-12-08 781-752-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 DEDHAM MA
2004-12-07 781-801-7XXX 7000–7999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 DEDHAM MA
2004-12-06 781-257-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J LINCOLN MA
2004-12-06 781-269-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J NORWOOD MA
2004-12-06 781-342-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J LYNNFIELD MA
2004-12-06 781-489-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J WELLESLEY MA
2004-12-06 781-538-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J LEXINGTON MA
2004-12-02 781-328-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 BURLINGTON MA
2004-12-02 781-399-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 MALDEN MA
2004-12-02 781-713-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 CANTON MA
2004-12-02 781-836-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 HINGHAM MA
2004-12-01 781-922-2XXX 2000–2999Assigned METROPCS, INC. 5562 REVERE MA
2004-11-30 781-210-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J COHASSET MA
2004-11-30 781-214-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J HULL MA
2004-11-30 781-228-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J BRAINTREE MA
2004-11-30 781-257-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J 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.