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
2021-04-13 223-218-8XXX 8000–8999Assigned METROPCS, INC. 5562 HENSEL PA
2021-04-13 223-228-2XXX 2000–2999Assigned ONVOY, LLC - PA 547E CHAMBERSBG PA
2021-04-13 223-229-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H LEBANON PA
2021-04-13 223-235-7XXX 7000–7999Assigned ONVOY, LLC - PA 547E LITTLESTN PA
2021-04-13 223-236-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H MANCHESTER PA
2021-04-13 223-238-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H AIRVILLE PA
2021-04-13 223-242-1XXX 1000–1999Assigned METROPCS, INC. 5562 MARIETTA PA
2021-04-13 223-242-6XXX 6000–6999Assigned ONVOY, LLC - PA 547E MARIETTA PA
2021-04-13 223-245-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H ANNVILLE PA
2021-04-13 223-246-5XXX 5000–5999Assigned ONVOY, LLC - PA 547E COLUMBIA PA
2021-04-13 223-248-4XXX 4000–4999Assigned ONVOY, LLC - PA 547E MCONELLSBG PA
2021-04-13 223-251-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H HARISBGZN2 PA
2021-04-13 223-252-2XXX 2000–2999Assigned ONVOY, LLC - PA 547E MCALISTRVL PA
2021-04-13 223-254-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H GLEN ROCK PA
2021-04-13 223-257-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H LEWISTOWN PA
2021-04-13 223-300-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H BROGUE PA
2021-04-13 223-336-1XXX 1000–1999Assigned ONVOY, LLC - PA 547E CARLISLE PA
2021-04-13 223-348-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H DOVER PA
2021-04-13 223-388-6XXX 6000–6999Assigned ONVOY, LLC - PA 547E BIGLERVL PA
2021-04-13 223-399-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H EASTBERLIN PA
2021-04-13 223-465-4XXX 4000–4999Assigned ONVOY, LLC - PA 547E GREENCASTL PA
2021-04-13 223-500-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H JEFFERSON PA
2021-04-13 223-758-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H MECHANCSBG PA
2021-04-13 223-837-7XXX 7000–7999Assigned ONVOY, LLC - PA 547E EWATERFORD PA
2021-04-13 223-888-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H HALIFAX PA
2021-04-13 223-900-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H HERSHEY PA
2021-04-13 223-924-6XXX 6000–6999Assigned ONVOY, LLC - PA 547E FAIRFIELD PA
2021-04-06 223-244-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 LANCASTER PA
2021-04-06 223-244-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 LANCASTER PA
2021-04-02 223-257-9XXX 9000–9999Assigned D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 LEWISTOWN PA
2021-04-01 223-246-0XXX 0000–0999Assigned D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 COLUMBIA PA
2021-04-01 223-246-1XXX 1000–1999Assigned D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 COLUMBIA PA
2021-04-01 223-246-4XXX 4000–4999Assigned D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 COLUMBIA PA
2021-03-31 223-204-3XXX 3000–3999Assigned ONVOY, LLC - PA 547E ICKESBURG PA
2021-03-31 223-215-3XXX 3000–3999Assigned ONVOY, LLC - PA 547E MOUNT JOY PA
2021-03-31 223-215-4XXX 4000–4999Assigned ONVOY, LLC - PA 547E MOUNT JOY PA
2021-03-31 223-217-4XXX 4000–4999Assigned ONVOY, LLC - PA 547E LEOLA PA
2021-03-31 223-217-5XXX 5000–5999Assigned ONVOY, LLC - PA 547E LEOLA PA
2021-03-31 223-219-4XXX 4000–4999Assigned ONVOY, LLC - PA 547E RAWLINSVL PA
2021-03-31 223-219-5XXX 5000–5999Assigned ONVOY, LLC - PA 547E RAWLINSVL PA
2021-03-31 223-224-3XXX 3000–3999Assigned ONVOY, LLC - PA 547E MCVEYTOWN PA
2021-03-31 223-224-4XXX 4000–4999Assigned ONVOY, LLC - PA 547E MCVEYTOWN PA
2021-03-31 223-256-8XXX 8000–8999Assigned HD CARRIER LLC 321J DILLSBURG PA
2021-03-31 223-256-9XXX 9000–9999Assigned HD CARRIER LLC 321J DILLSBURG PA
2021-03-31 223-332-2XXX 2000–2999Assigned ONVOY, LLC - PA 547E LYKENS PA
2021-03-31 223-336-4XXX 4000–4999Assigned ONVOY, LLC - PA 547E CARLISLE PA
2021-03-31 223-336-5XXX 5000–5999Assigned ONVOY, LLC - PA 547E CARLISLE PA
2021-03-31 223-336-9XXX 9000–9999Assigned ONVOY, LLC - PA 547E CARLISLE PA
2021-03-26 223-262-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7315 MOUNTVILLE PA
2021-03-08 223-377-2XXX 2000–2999Assigned ONVOY, LLC - PA 547E WARFORDSBG 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.