NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

1 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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 617
BANDWIDTH.COM CLEC, LLC - 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
2007-04-13 617-602-5XXX 5000–5999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 ROXBURY MA
2007-04-09 617-237-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 QUINCY MA
2007-04-09 617-237-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 QUINCY MA
2007-04-09 617-614-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 NEWTON MA
2007-04-06 617-895-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 EASTBOSTON MA
2007-04-02 617-756-1XXX 1000–1999Assigned METROPCS, INC. 5562 BOSTON MA
2007-04-02 617-756-2XXX 2000–2999Assigned METROPCS, INC. 5562 BOSTON MA
2007-04-02 617-756-3XXX 3000–3999Assigned METROPCS, INC. 5562 BOSTON MA
2007-04-02 617-756-4XXX 4000–4999Assigned METROPCS, INC. 5562 BOSTON MA
2007-04-02 617-756-5XXX 5000–5999Assigned METROPCS, INC. 5562 BOSTON MA
2007-04-02 617-756-6XXX 6000–6999Assigned METROPCS, INC. 5562 BOSTON MA
2007-04-02 617-756-7XXX 7000–7999Assigned METROPCS, INC. 5562 BOSTON MA
2007-04-02 617-756-8XXX 8000–8999Assigned METROPCS, INC. 5562 BOSTON MA
2007-04-02 617-756-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 BOSTON MA
2007-03-30 617-502-6XXX 6000–6999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J BOSTON MA
2007-03-28 617-502-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J BOSTON MA
2007-03-26 617-302-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J QUINCY MA
2007-03-23 617-206-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BRIGHTON MA
2007-03-23 617-237-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 QUINCY MA
2007-03-23 617-334-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SO BOSTON MA
2007-03-23 617-402-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WATERTOWN MA
2007-03-05 617-502-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J BOSTON MA
2007-03-02 617-455-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 EASTBOSTON MA
2007-03-02 617-895-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 EASTBOSTON MA
2007-02-09 617-586-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J BRIGHTON MA
2007-02-07 617-284-1XXX 1000–1999Assigned METROPOLITAN TELECOMMUNICATIONS OF MASS DBA METTEL 0334 SOMERVILLE MA
2007-02-05 617-455-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 EASTBOSTON MA
2007-01-22 617-398-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J CHARLESTN MA
2007-01-22 617-616-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J SOMERVILLE MA
2007-01-22 617-932-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J BELMONT MA
2007-01-19 617-987-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J BRIGHTON MA
2007-01-11 617-487-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J BROOKLINE MA
2007-01-11 617-487-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J BROOKLINE MA
2007-01-04 617-455-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 EASTBOSTON MA
2007-01-04 617-455-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 EASTBOSTON MA
2006-12-22 617-466-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J CHELSEA MA
2006-12-22 617-466-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J CHELSEA MA
2006-12-19 617-932-9XXX 9000–9999Assigned METROPCS, INC. 5562 BELMONT MA
2006-12-13 617-581-1XXX 1000–1999Assigned FREEDOM RING COMMUNICATIONS, LLC 8468 NEWTON MA
2006-12-01 617-981-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 EASTBOSTON MA
2006-12-01 617-981-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 EASTBOSTON MA
2006-11-20 617-944-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J EVERETT MA
2006-11-16 617-300-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 CAMBRIDGE MA
2006-11-13 617-849-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 BOSTON MA
2006-11-07 617-744-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J WATERTOWN MA
2006-11-07 617-744-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J WATERTOWN MA
2006-11-06 617-997-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 EASTBOSTON MA
2006-11-01 617-409-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J CHELSEA MA
2006-11-01 617-676-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 JAMAICA PL MA
2006-11-01 617-676-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 JAMAICA PL MA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.