NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

21 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 223
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6
MCIMETRO ACCESS TRANSMISSION SERVICES LLC 4
ONVOY, LLC - PA 3
NEW CINGULAR WIRELESS PCS, LLC - DC 3
BOOST SUBSCRIBERCO L.L.C. 2
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
2023-02-21 223-307-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 LANCASTER PA
2023-02-21 223-307-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 LANCASTER PA
2023-02-08 223-282-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J NEWBLOMFLD PA
2023-02-07 223-267-4XXX 4000–4999Assigned ONVOY, LLC - PA 547E HANOVER PA
2023-02-07 223-267-5XXX 5000–5999Assigned ONVOY, LLC - PA 547E HANOVER PA
2023-02-07 223-267-6XXX 6000–6999Assigned ONVOY, LLC - PA 547E HANOVER PA
2023-02-07 223-304-5XXX 5000–5999Assigned ONVOY, LLC - PA 547E NEWVILLE PA
2023-02-07 223-306-1XXX 1000–1999Assigned NUSO, LLC 732J YORK PA
2023-02-06 223-249-6XXX 6000–6999Assigned PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E MILLERSVL PA
2023-02-01 223-210-8XXX 8000–8999Assigned ONVOY, LLC - PA 547E DENVER PA
2023-01-31 223-277-4XXX 4000–4999Assigned ONVOY, LLC - PA 547E BELLEVILLE PA
2023-01-31 223-423-8XXX 8000–8999Assigned ONVOY, LLC - PA 547E ICKESBURG PA
2023-01-25 223-403-5XXX 5000–5999Assigned ONVOY, LLC - PA 547E LANDISVL PA
2023-01-23 223-282-4XXX 4000–4999Assigned ONVOY, LLC - PA 547E NEWBLOMFLD PA
2023-01-23 223-900-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J HERSHEY PA
2023-01-23 223-900-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J HERSHEY PA
2023-01-20 223-265-2XXX 2000–2999Assigned ONVOY, LLC - PA 547E AKRON PA
2023-01-20 223-305-4XXX 4000–4999Assigned ONVOY, LLC - PA 547E DELTA PA
2023-01-20 223-323-2XXX 2000–2999Assigned ONVOY, LLC - PA 547E TERRE HILL PA
2023-01-13 223-241-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F LEBANON PA
2023-01-13 223-377-5XXX 5000–5999Assigned ONVOY, LLC - PA 547E WARFORDSBG PA
2023-01-12 223-238-9XXX 9000–9999Assigned ONVOY, LLC - PA 547E AIRVILLE PA
2023-01-12 223-271-8XXX 8000–8999Assigned ONVOY, LLC - PA 547E LANCASTER PA
2023-01-09 223-220-6XXX 6000–6999Assigned D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 CHAMBERSBG PA
2023-01-09 223-264-4XXX 4000–4999Assigned D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 EPHRATA PA
2023-01-09 223-264-6XXX 6000–6999Assigned D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 EPHRATA PA
2023-01-09 223-268-1XXX 1000–1999Assigned D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 ELIZABTHVL PA
2023-01-09 223-289-2XXX 2000–2999Assigned D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 COLUMBIA PA
2023-01-09 223-289-3XXX 3000–3999Assigned D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 COLUMBIA PA
2023-01-09 223-289-4XXX 4000–4999Assigned D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 COLUMBIA PA
2023-01-09 223-289-5XXX 5000–5999Assigned D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 COLUMBIA PA
2023-01-09 223-533-1XXX 1000–1999Assigned D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 CARLISLE PA
2023-01-09 223-533-4XXX 4000–4999Assigned D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 CARLISLE PA
2023-01-09 223-533-6XXX 6000–6999Assigned D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 CARLISLE PA
2023-01-09 223-533-7XXX 7000–7999Assigned D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 CARLISLE PA
2023-01-06 223-294-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J MIDDLETOWN PA
2023-01-06 223-294-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J MIDDLETOWN PA
2023-01-06 223-304-6XXX 6000–6999Assigned ONVOY, LLC - PA 547E NEWVILLE PA
2023-01-06 223-867-2XXX 2000–2999Assigned ONVOY, LLC - PA 547E HANOVER PA
2023-01-06 223-867-3XXX 3000–3999Assigned ONVOY, LLC - PA 547E HANOVER PA
2023-01-06 223-867-4XXX 4000–4999Assigned ONVOY, LLC - PA 547E HANOVER PA
2023-01-04 223-678-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7315 SCHAEFESTN PA
2022-12-30 223-271-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 LANCASTER PA
2022-12-29 223-274-4XXX 4000–4999Assigned ONVOY, LLC - PA 547E MCONELLSBG PA
2022-12-27 223-256-1XXX 1000–1999Assigned TELNYX LLC 073H DILLSBURG PA
2022-12-21 223-276-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 RED LION PA
2022-12-16 223-304-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEWVILLE PA
2022-12-16 223-316-4XXX 4000–4999Assigned ONVOY, LLC - PA 547E LEBANON PA
2022-12-16 223-316-5XXX 5000–5999Assigned ONVOY, LLC - PA 547E LEBANON PA
2022-12-13 223-270-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 LEBANON 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.