NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

5 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 717
MCIMETRO ACCESS TRANSMISSION SERVICES LLC 2
TELEPORT COMMUNICATIONS AMERICA, LLC - PA 1
ONVOY, LLC - PA 1
HD CARRIER LLC 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
2012-10-09 717-739-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - PA 4007 SPRING GRV PA
2012-10-03 717-947-1XXX 1000–1999Assigned CTSI, INC. - PA 7513 LANCASTER PA
2012-10-03 717-947-2XXX 2000–2999Assigned CTSI, INC. - PA 7513 LANCASTER PA
2012-10-02 717-617-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J LANCASTER PA
2012-09-28 717-888-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J HARISBGZN1 PA
2012-09-26 717-736-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA 7434 HARISBGZN1 PA
2012-09-26 717-736-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA 7434 HARISBGZN1 PA
2012-09-25 717-617-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 LANCASTER PA
2012-09-25 717-617-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 LANCASTER PA
2012-09-20 717-387-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 WAYNESBORO PA
2012-09-20 717-778-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - PA 4007 BIGLERVL PA
2012-09-18 717-219-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F SHELLSVL PA
2012-09-18 717-547-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F HARISBGZN1 PA
2012-09-18 717-850-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F YORK PA
2012-09-17 717-547-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J HARISBGZN1 PA
2012-09-11 717-547-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HARISBGZN1 PA
2012-08-29 717-617-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LANCASTER PA
2012-08-29 717-847-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 LANCASTER PA
2012-08-29 717-847-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 LANCASTER PA
2012-08-29 717-847-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 LANCASTER PA
2012-08-29 717-847-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 LANCASTER PA
2012-08-23 717-454-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LEBANON PA
2012-08-22 717-472-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 YORK PA
2012-08-22 717-472-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 YORK PA
2012-08-22 717-693-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 COLUMBIA PA
2012-08-22 717-693-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 COLUMBIA PA
2012-08-22 717-739-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - PA 4007 SPRING GRV PA
2012-08-21 717-836-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 HARISBGZN1 PA
2012-08-16 717-220-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F HUMMELSTN PA
2012-08-16 717-467-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F DOVER PA
2012-08-16 717-508-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F HERSHEY PA
2012-08-16 717-547-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F HARISBGZN1 PA
2012-08-16 717-553-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F LANCASTER PA
2012-08-09 717-398-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - PA 4007 GETTYSBURG PA
2012-08-09 717-809-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - PA 4007 CHAMBERSBG PA
2012-08-09 717-819-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 YORK PA
2012-08-07 717-888-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7309 HARISBGZN1 PA
2012-08-07 717-888-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7309 HARISBGZN1 PA
2012-08-07 717-888-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7309 HARISBGZN1 PA
2012-08-07 717-888-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7309 HARISBGZN1 PA
2012-08-07 717-888-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7309 HARISBGZN1 PA
2012-08-06 717-208-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F LANCASTER PA
2012-08-06 717-219-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F SHELLSVL PA
2012-08-06 717-819-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F YORK PA
2012-08-06 717-888-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7309 HARISBGZN1 PA
2012-08-06 717-888-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7309 HARISBGZN1 PA
2012-08-03 717-494-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MARION PA
2012-08-03 717-547-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J HARISBGZN1 PA
2012-07-31 717-547-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA 7434 HARISBGZN1 PA
2012-07-31 717-834-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA 7434 DUNCANNON PA

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.