NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

5 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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
2011-12-27 717-839-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HARISBGZN1 PA
2011-12-15 717-422-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - PA 4007 CARLISLE PA
2011-12-15 717-524-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - PA 4007 HANOVER PA
2011-12-15 717-850-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - PA 4007 YORK PA
2011-12-15 717-884-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J HARISBGZN1 PA
2011-12-12 717-925-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LANCASTER PA
2011-12-12 717-925-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LANCASTER PA
2011-12-02 717-450-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F LEBANON PA
2011-12-02 717-478-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F WRIGHTSVL PA
2011-12-02 717-489-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F HERSHEY PA
2011-12-02 717-559-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F DAUPHIN PA
2011-12-02 717-686-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F HARISBGZN1 PA
2011-12-02 717-745-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F HARISBGZN2 PA
2011-12-01 717-373-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F BROGUE PA
2011-12-01 717-553-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA 7434 LANCASTER PA
2011-12-01 717-628-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F MYERSTOWN PA
2011-12-01 717-899-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F MCVEYTOWN PA
2011-11-30 717-220-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F HUMMELSTN PA
2011-11-30 717-827-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F HALIFAX PA
2011-11-23 717-836-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J HARISBGZN1 PA
2011-11-15 717-747-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 YORK PA
2011-11-08 717-450-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LEBANON PA
2011-11-08 717-543-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LEWISTOWN PA
2011-11-03 717-473-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - PA 4007 PALMYRA PA
2011-11-01 717-698-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J HANOVER PA
2011-10-28 717-204-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA 7434 NEWPORT PA
2011-10-28 717-553-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LANCASTER PA
2011-10-20 717-553-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - PA 4007 LANCASTER PA
2011-10-18 717-254-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CARLISLE PA
2011-10-14 717-736-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HARISBGZN1 PA
2011-10-14 717-736-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HARISBGZN1 PA
2011-10-12 717-942-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J GLEN ROCK PA
2011-10-11 717-553-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J LANCASTER PA
2011-10-07 717-655-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J WAYNESBORO PA
2011-10-07 717-836-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA 7434 HARISBGZN1 PA
2011-10-04 717-693-8XXX 8000–8999Assigned D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 COLUMBIA PA
2011-10-04 717-693-9XXX 9000–9999Assigned D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 COLUMBIA PA
2011-09-30 717-945-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J LANCASTER PA
2011-09-29 717-516-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - PA 4007 MECHANCSBG PA
2011-09-28 717-747-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 YORK PA
2011-09-28 717-916-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 YORK PA
2011-09-27 717-736-4XXX 4000–4999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 HARISBGZN1 PA
2011-09-26 717-855-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J YORK PA
2011-09-14 717-462-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 CARLISLE PA
2011-09-06 717-331-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CHAMBERSBG PA
2011-09-06 717-639-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LEBANON PA
2011-09-06 717-743-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HARISBGZN1 PA
2011-09-02 717-698-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HANOVER PA
2011-08-30 717-420-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J GETTYSBURG PA
2011-08-30 717-820-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J JONESTOWN PA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.