NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

1 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 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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2008-11-10 617-752-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E SO BOSTON MA
2008-11-10 617-863-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E SOMERVILLE MA
2008-11-10 617-910-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E HYDE PARK MA
2008-11-10 617-942-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E JAMAICA PL MA
2008-11-10 617-942-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 JAMAICA PL MA
2008-11-07 617-383-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E BROOKLINE MA
2008-11-07 617-398-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E CHARLESTN MA
2008-11-07 617-575-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E CAMBRIDGE MA
2008-11-07 617-826-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E BELMONT MA
2008-11-07 617-903-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E BRIGHTON MA
2008-11-06 617-466-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 CHELSEA MA
2008-10-31 617-718-3XXX 3000–3999Assigned YMAX COMMUNICATIONS CORP. - MA 316E SOMERVILLE MA
2008-10-30 617-302-5XXX 5000–5999Assigned YMAX COMMUNICATIONS CORP. - MA 316E QUINCY MA
2008-10-30 617-322-6XXX 6000–6999Assigned YMAX COMMUNICATIONS CORP. - MA 316E MILTON MA
2008-10-30 617-431-7XXX 7000–7999Assigned YMAX COMMUNICATIONS CORP. - MA 316E NEWTON MA
2008-10-21 617-800-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 CAMBRIDGE MA
2008-10-06 617-599-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 CAMBRIDGE MA
2008-10-06 617-599-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 CAMBRIDGE MA
2008-09-25 617-602-0XXX 0000–0999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 ROXBURY MA
2008-09-25 617-602-3XXX 3000–3999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 ROXBURY MA
2008-09-25 617-602-6XXX 6000–6999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 ROXBURY MA
2008-09-25 617-866-3XXX 3000–3999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 CAMBRIDGE MA
2008-09-25 617-866-7XXX 7000–7999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 CAMBRIDGE MA
2008-09-22 617-963-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J BOSTON MA
2008-09-22 617-963-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BOSTON MA
2008-09-22 617-963-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BOSTON MA
2008-09-09 617-383-1XXX 1000–1999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 BROOKLINE MA
2008-09-09 617-415-3XXX 3000–3999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 BRIGHTON MA
2008-09-04 617-334-9XXX 9000–9999Assigned YMAX COMMUNICATIONS CORP. - MA 316E SO BOSTON MA
2008-09-03 617-599-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 CAMBRIDGE MA
2008-09-03 617-999-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 CAMBRIDGE MA
2008-08-27 617-500-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 CAMBRIDGE MA
2008-08-13 617-409-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J CHELSEA MA
2008-08-11 617-800-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CAMBRIDGE MA
2008-08-11 617-800-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CAMBRIDGE MA
2008-08-11 617-800-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CAMBRIDGE MA
2008-08-11 617-800-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CAMBRIDGE MA
2008-08-11 617-800-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CAMBRIDGE MA
2008-08-05 617-485-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J NEWTON MA
2008-08-04 617-405-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J QUINCY MA
2008-08-04 617-999-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 CAMBRIDGE MA
2008-07-21 617-955-1XXX 1000–1999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 CAMBRIDGE MA
2008-07-21 617-955-2XXX 2000–2999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 CAMBRIDGE MA
2008-07-21 617-955-3XXX 3000–3999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 CAMBRIDGE MA
2008-07-21 617-955-4XXX 4000–4999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 CAMBRIDGE MA
2008-07-21 617-955-5XXX 5000–5999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 CAMBRIDGE MA
2008-07-18 617-391-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BOSTON MA
2008-07-18 617-575-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J CAMBRIDGE MA
2008-07-18 617-606-1XXX 1000–1999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 ROXBURY MA
2008-07-18 617-708-6XXX 6000–6999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 ROXBURY 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.