NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

0 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, all time — NPA 215
NEW CINGULAR WIRELESS PCS, LLC - DC 281
ONVOY, LLC - PA 273
OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 253
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 218
METROPCS, INC. 173
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
2007-11-20 215-437-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - PA 4007 PHLDLPHZN4 PA
2007-10-24 215-664-4XXX 4000–4999Assigned BLOCK LINE SYSTEMS, LLC - PA 784E PHPHSBZN33 PA
2007-10-24 215-688-4XXX 4000–4999Assigned BLOCK LINE SYSTEMS, LLC - PA 784E PHPHSBZN41 PA
2007-10-17 215-454-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 PHLDLPHZN1 PA
2007-10-16 215-391-4XXX 4000–4999Assigned BLOCK LINE SYSTEMS, LLC - PA 784E PHLDLPHZN1 PA
2007-10-10 215-823-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PHLDLPHZN2 PA
2007-10-04 215-475-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PHLDLPHZN3 PA
2007-10-04 215-486-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PHPHSBZN44 PA
2007-10-04 215-618-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PHLDLPHZN4 PA
2007-10-04 215-649-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PHPHSBZN34 PA
2007-10-01 215-366-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J PHPHSBZN38 PA
2007-09-10 215-613-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J PHLDLPHZN4 PA
2007-09-10 215-613-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J PHLDLPHZN4 PA
2007-09-10 215-613-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J PHLDLPHZN4 PA
2007-09-10 215-613-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J PHLDLPHZN4 PA
2007-09-10 215-921-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J PHLDLPHZN2 PA
2007-09-10 215-921-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J PHLDLPHZN2 PA
2007-09-10 215-921-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J PHLDLPHZN2 PA
2007-09-10 215-921-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J PHLDLPHZN2 PA
2007-08-30 215-501-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 PHLDLPHZN4 PA
2007-08-30 215-501-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 PHLDLPHZN4 PA
2007-08-30 215-921-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 PHLDLPHZN2 PA
2007-08-30 215-921-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 PHLDLPHZN2 PA
2007-08-24 215-298-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J PHLDLPHZN3 PA
2007-08-24 215-298-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J PHLDLPHZN3 PA
2007-08-24 215-298-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J PHLDLPHZN3 PA
2007-08-21 215-394-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J PHPHSBZN39 PA
2007-08-08 215-539-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PHPHSBZN43 PA
2007-08-08 215-622-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 DOYLESTOWN PA
2007-08-08 215-933-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 DOYLESTOWN PA
2007-08-08 215-933-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 DOYLESTOWN PA
2007-08-01 215-690-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J PHPHSBZN34 PA
2007-07-27 215-381-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J PHLDLPHZN3 PA
2007-07-27 215-381-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J PHLDLPHZN3 PA
2007-07-27 215-381-9XXX 9000–9999Assigned PAETEC ITEL, LLC 829J PHLDLPHZN3 PA
2007-07-27 215-458-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J PHPHSBZN42 PA
2007-07-17 215-550-5XXX 5000–5999Assigned YMAX COMMUNICATIONS CORP. - PA 283E NEWTOWN PA
2007-07-16 215-397-3XXX 3000–3999Assigned YMAX COMMUNICATIONS CORP. - PA 283E PHLDLPHZN2 PA
2007-07-11 215-310-2XXX 2000–2999Assigned NETCARRIER TELECOM, INC. - PA 5494 MORRISVL PA
2007-07-03 215-220-0XXX 0000–0999Assigned PAETEC ITEL, LLC 829J PHLDLPHZN2 PA
2007-07-03 215-220-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J PHLDLPHZN2 PA
2007-07-03 215-220-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J PHLDLPHZN2 PA
2007-07-03 215-220-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J PHLDLPHZN2 PA
2007-06-25 215-550-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J NEWTOWN PA
2007-06-25 215-789-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 PHLDLPHZN1 PA
2007-06-25 215-789-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 PHLDLPHZN1 PA
2007-06-11 215-447-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J PHPHSBZN41 PA
2007-06-11 215-543-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - PA 4007 PHLDLPHZN4 PA
2007-06-01 215-259-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHPHSBZN39 PA
2007-06-01 215-346-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHPHSBZN38 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.