NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

19 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 445
ONVOY, LLC - PA 8
BANDWIDTH.COM CLEC, LLC - PA 5
NEW CINGULAR WIRELESS PCS, LLC - DC 4
EXIANT COMMUNICATIONS LLC 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 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
2020-10-09 445-234-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PHLDLPHZN1 PA
2020-10-09 445-234-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PHLDLPHZN1 PA
2020-10-09 445-234-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PHLDLPHZN1 PA
2020-10-09 445-234-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PHLDLPHZN1 PA
2020-10-09 445-446-4XXX 4000–4999Assigned ONVOY, LLC - PA 547E SOUDERTON PA
2020-10-09 445-446-5XXX 5000–5999Assigned ONVOY, LLC - PA 547E SOUDERTON PA
2020-10-09 445-446-6XXX 6000–6999Assigned ONVOY, LLC - PA 547E SOUDERTON PA
2020-10-06 445-455-3XXX 3000–3999Assigned ONVOY, LLC - PA 547E PLUMSTEDVL PA
2020-10-06 445-455-4XXX 4000–4999Assigned ONVOY, LLC - PA 547E PLUMSTEDVL PA
2020-09-29 445-223-6XXX 6000–6999Assigned ONVOY, LLC - PA 547E PHLDLPHZN1 PA
2020-09-28 445-224-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7309 LANSDALE PA
2020-09-28 445-224-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7309 LANSDALE PA
2020-09-24 445-465-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PHLDLPHZN4 PA
2020-09-24 445-465-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PHLDLPHZN4 PA
2020-09-24 445-465-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PHLDLPHZN4 PA
2020-09-24 445-465-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PHLDLPHZN4 PA
2020-09-24 445-465-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PHLDLPHZN4 PA
2020-09-17 445-212-1XXX 1000–1999Assigned IP HORIZON LLC 515J PHLDLPHZN1 PA
2020-09-17 445-223-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J PHLDLPHZN1 PA
2020-09-17 445-223-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J PHLDLPHZN1 PA
2020-09-17 445-223-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J PHLDLPHZN1 PA
2020-09-17 445-223-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J PHLDLPHZN1 PA
2020-09-17 445-895-8XXX 8000–8999Assigned TWILIO INTERNATIONAL, INC. 506J PHLDLPHZN1 PA
2020-09-14 445-202-1XXX 1000–1999Assigned NUSO, LLC 478J PHLDLPHZN1 PA
2020-09-01 445-201-6XXX 6000–6999Assigned FINGER LAKES TECHNOLOGIES GROUP, INC. - PA 464H PHLDLPHZN1 PA
2020-09-01 445-465-0XXX 0000–0999Assigned PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E PHLDLPHZN4 PA
2020-08-29 445-223-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PHLDLPHZN1 PA
2020-08-29 445-223-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PHLDLPHZN1 PA
2020-08-29 445-223-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PHLDLPHZN1 PA
2020-08-10 445-234-5XXX 5000–5999Assigned FRACTEL, LLC 965H PHLDLPHZN1 PA
2020-08-10 445-345-6XXX 6000–6999Assigned FRACTEL, LLC 965H PHLDLPHZN2 PA
2020-08-10 445-465-8XXX 8000–8999Assigned FRACTEL, LLC 965H PHLDLPHZN4 PA
2020-08-10 445-529-3XXX 3000–3999Assigned FRACTEL, LLC 965H PHPHSBZN43 PA
2020-08-10 445-529-9XXX 9000–9999Assigned FRACTEL, LLC 965H PHPHSBZN43 PA
2020-08-03 445-600-7XXX 7000–7999Assigned PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E PHPHSBZN39 PA
2020-06-25 445-223-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHLDLPHZN1 PA
2020-06-24 445-600-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H PHPHSBZN39 PA
2020-06-24 445-600-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H PHPHSBZN39 PA
2020-05-28 445-455-5XXX 5000–5999Assigned FRACTEL, LLC 965H PLUMSTEDVL PA
2020-04-06 445-777-4XXX 4000–4999Assigned ONVOY, LLC - PA 547E YARDLEY PA
2020-04-06 445-777-5XXX 5000–5999Assigned ONVOY, LLC - PA 547E YARDLEY PA
2020-04-06 445-777-6XXX 6000–6999Assigned ONVOY, LLC - PA 547E YARDLEY PA
2020-04-06 445-777-8XXX 8000–8999Assigned ONVOY, LLC - PA 547E YARDLEY PA
2020-03-31 445-333-5XXX 5000–5999Assigned PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E QUAKERTOWN PA
2020-03-03 445-333-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J QUAKERTOWN PA
2020-01-07 445-400-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PHLDLPHZN2 PA
2019-12-04 445-400-3XXX 3000–3999Assigned PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E PHLDLPHZN2 PA
2019-11-25 445-444-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PHLDLPHZN1 PA
2019-08-12 445-600-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PHPHSBZN39 PA
2019-08-12 445-600-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PHPHSBZN39 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.