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
2008-02-06 781-664-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 BRAINTREE MA
2008-02-06 781-686-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 DEDHAM MA
2008-02-06 781-733-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 NORWELL MA
2008-02-06 781-835-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 STONEHAM MA
2008-02-05 781-257-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 LINCOLN MA
2008-02-05 781-296-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 WALTHAM MA
2008-02-04 781-262-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 BURLINGTON MA
2008-02-04 781-315-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 READING MA
2008-02-04 781-348-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 BRAINTREE MA
2008-02-04 781-348-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 BRAINTREE MA
2008-02-04 781-518-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 MEDFORD MA
2008-01-31 781-373-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J WALTHAM MA
2008-01-22 781-428-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 BRAINTREE MA
2008-01-21 781-205-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 READING MA
2008-01-21 781-209-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 WALTHAM MA
2008-01-21 781-257-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 LINCOLN MA
2008-01-17 781-353-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 BRAINTREE MA
2008-01-16 781-694-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 WELLESLEY MA
2008-01-15 781-296-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 WALTHAM MA
2008-01-09 781-309-2XXX 2000–2999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 LYNN MA
2008-01-09 781-927-4XXX 4000–4999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WEYMOUTH MA
2008-01-08 781-558-4XXX 4000–4999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 SAUGUS MA
2008-01-08 781-679-4XXX 4000–4999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 KINGSTON MA
2008-01-07 781-535-7XXX 7000–7999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 BRAINTREE MA
2007-12-19 781-430-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J LEXINGTON MA
2007-12-14 781-521-8XXX 8000–8999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 SAUGUS MA
2007-12-13 781-698-5XXX 5000–5999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 LEXINGTON MA
2007-11-21 781-569-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J WOBURN MA
2007-11-12 781-680-3XXX 3000–3999Assigned FREEDOM RING COMMUNICATIONS, LLC 8468 NORWOOD MA
2007-11-02 781-315-9XXX 9000–9999Assigned METROPCS, INC. 5562 READING MA
2007-11-01 781-349-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J NORWOOD MA
2007-10-25 781-686-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 DEDHAM MA
2007-10-18 781-536-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MARSHFIELD MA
2007-10-17 781-472-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J WALTHAM MA
2007-10-16 781-219-7XXX 7000–7999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 MEDFORD MA
2007-10-16 781-888-7XXX 7000–7999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 RANDOLPH MA
2007-10-12 781-534-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WEYMOUTH MA
2007-10-09 781-535-8XXX 8000–8999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 BRAINTREE MA
2007-10-09 781-558-3XXX 3000–3999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 SAUGUS MA
2007-10-01 781-361-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 KINGSTON MA
2007-10-01 781-361-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 KINGSTON MA
2007-08-14 781-215-4XXX 4000–4999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 LYNN MA
2007-08-14 781-350-8XXX 8000–8999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 MEDFORD MA
2007-08-13 781-859-6XXX 6000–6999Assigned METROPCS, INC. 5562 ARLINGTON MA
2007-08-10 781-422-7XXX 7000–7999Assigned YMAX COMMUNICATIONS CORP. - MA 316E KINGSTON MA
2007-08-09 781-452-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J DUXBURY MA
2007-08-06 781-315-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 READING MA
2007-08-06 781-664-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 BRAINTREE MA
2007-08-06 781-686-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 DEDHAM MA
2007-08-06 781-733-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 NORWELL 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.