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
2009-03-16 781-472-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WALTHAM MA
2009-03-16 781-547-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WALTHAM MA
2009-03-13 781-472-4XXX 4000–4999Assigned YMAX COMMUNICATIONS CORP. - MA 316E WALTHAM MA
2009-02-26 781-352-7XXX 7000–7999Assigned YMAX COMMUNICATIONS CORP. - MA 316E NORWOOD MA
2009-02-13 781-217-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 KINGSTON MA
2009-02-13 781-217-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 KINGSTON MA
2009-02-05 781-697-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 WALTHAM MA
2009-02-04 781-236-2XXX 2000–2999Assigned YMAX COMMUNICATIONS CORP. - MA 316E COHASSET MA
2009-02-04 781-375-4XXX 4000–4999Assigned YMAX COMMUNICATIONS CORP. - MA 316E DEDHAM MA
2009-02-04 781-479-8XXX 8000–8999Assigned YMAX COMMUNICATIONS CORP. - MA 316E LYNN MA
2009-02-04 781-626-8XXX 8000–8999Assigned YMAX COMMUNICATIONS CORP. - MA 316E WEYMOUTH MA
2009-01-19 781-355-8XXX 8000–8999Assigned FREEDOM RING COMMUNICATIONS, LLC 8468 DEDHAM MA
2009-01-15 781-366-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DEDHAM MA
2009-01-15 781-502-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MALDEN MA
2009-01-09 781-218-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E WINCHESTER MA
2009-01-09 781-330-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E WALTHAM MA
2009-01-09 781-333-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E MALDEN MA
2009-01-09 781-462-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E MELROSE MA
2009-01-09 781-534-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E WEYMOUTH MA
2009-01-09 781-610-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J ROCKLAND MA
2009-01-09 781-816-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E SAUGUS MA
2008-12-16 781-773-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J HULL MA
2008-12-08 781-664-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 BRAINTREE MA
2008-12-08 781-697-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 WALTHAM MA
2008-12-04 781-269-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 NORWOOD MA
2008-12-04 781-369-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WINCHESTER MA
2008-12-04 781-378-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SCITUATE MA
2008-12-04 781-400-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 NEEDHAM MA
2008-12-04 781-436-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 STOUGHTON MA
2008-12-04 781-437-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 RANDOLPH MA
2008-12-04 781-591-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WELLESLEY MA
2008-12-04 781-682-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WEYMOUTH MA
2008-12-04 781-816-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SAUGUS MA
2008-12-01 781-366-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DEDHAM MA
2008-12-01 781-366-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DEDHAM MA
2008-12-01 781-366-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DEDHAM MA
2008-11-19 781-205-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J READING MA
2008-11-11 781-361-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 KINGSTON MA
2008-11-11 781-695-1XXX 1000–1999Assigned FREEDOM RING COMMUNICATIONS, LLC 8468 STOUGHTON MA
2008-11-11 781-851-8XXX 8000–8999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J MALDEN MA
2008-11-10 781-205-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E READING MA
2008-11-10 781-214-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E HULL MA
2008-11-10 781-261-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E ROCKLAND MA
2008-11-10 781-269-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E NORWOOD MA
2008-11-10 781-285-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E DUXBURY MA
2008-11-10 781-312-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E HANOVER MA
2008-11-10 781-342-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E LYNNFIELD MA
2008-11-10 781-346-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E LYNN MA
2008-11-10 781-361-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E KINGSTON MA
2008-11-10 781-436-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E STOUGHTON 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.