NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

21 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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
2021-03-08 223-377-3XXX 3000–3999Assigned ONVOY, LLC - PA 547E WARFORDSBG PA
2021-03-06 223-253-4XXX 4000–4999Assigned ONVOY, LLC - PA 547E NEW OXFORD PA
2021-03-06 223-253-5XXX 5000–5999Assigned ONVOY, LLC - PA 547E NEW OXFORD PA
2021-03-06 223-254-5XXX 5000–5999Assigned ONVOY, LLC - PA 547E GLEN ROCK PA
2021-03-06 223-254-6XXX 6000–6999Assigned ONVOY, LLC - PA 547E GLEN ROCK PA
2021-03-06 223-388-3XXX 3000–3999Assigned ONVOY, LLC - PA 547E BIGLERVL PA
2021-03-06 223-388-4XXX 4000–4999Assigned ONVOY, LLC - PA 547E BIGLERVL PA
2021-03-01 223-377-7XXX 7000–7999Assigned FRACTEL, LLC 965H WARFORDSBG PA
2021-03-01 223-388-8XXX 8000–8999Assigned FRACTEL, LLC 965H BIGLERVL PA
2021-03-01 223-399-9XXX 9000–9999Assigned FRACTEL, LLC 965H EASTBERLIN PA
2021-03-01 223-529-4XXX 4000–4999Assigned PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E LANCASTER PA
2021-02-22 223-732-0XXX 0000–0999Assigned TELNYX LLC 073H PALMYRA PA
2021-02-22 223-877-9XXX 9000–9999Assigned TELNYX LLC 073H YORK PA
2021-02-16 223-233-8XXX 8000–8999Assigned TELNYX LLC 073H SPRING GRV PA
2021-02-16 223-786-0XXX 0000–0999Assigned TELNYX LLC 073H STEWARTSTN PA
2021-02-12 223-236-0XXX 0000–0999Assigned TELNYX LLC 073H MANCHESTER PA
2021-02-11 223-254-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F GLEN ROCK PA
2021-02-11 223-254-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F GLEN ROCK PA
2021-02-11 223-500-1XXX 1000–1999Assigned TELNYX LLC 073H JEFFERSON PA
2021-02-11 223-888-9XXX 9000–9999Assigned TELNYX LLC 073H HALIFAX PA
2021-02-10 223-213-0XXX 0000–0999Assigned TELNYX LLC 073H DILLSBURG PA
2021-02-10 223-218-4XXX 4000–4999Assigned ONVOY, LLC - PA 547E HENSEL PA
2021-02-10 223-218-5XXX 5000–5999Assigned ONVOY, LLC - PA 547E HENSEL PA
2021-02-10 223-233-5XXX 5000–5999Assigned ONVOY, LLC - PA 547E SPRING GRV PA
2021-02-10 223-233-6XXX 6000–6999Assigned ONVOY, LLC - PA 547E SPRING GRV PA
2021-02-10 223-252-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F MCALISTRVL PA
2021-02-10 223-348-0XXX 0000–0999Assigned TELNYX LLC 073H DOVER PA
2021-02-10 223-356-2XXX 2000–2999Assigned ONVOY, LLC - PA 547E INTERCOURS PA
2021-02-10 223-356-3XXX 3000–3999Assigned ONVOY, LLC - PA 547E INTERCOURS PA
2021-02-10 223-747-6XXX 6000–6999Assigned TELNYX LLC 073H EASTBERLIN PA
2021-02-08 223-259-1XXX 1000–1999Assigned IP HORIZON LLC 515J HARISBGZN1 PA
2021-02-08 223-842-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEWVILLE PA
2021-02-05 223-238-0XXX 0000–0999Assigned TELNYX LLC 073H AIRVILLE PA
2021-02-05 223-242-7XXX 7000–7999Assigned ONVOY, LLC - PA 547E MARIETTA PA
2021-02-05 223-242-8XXX 8000–8999Assigned ONVOY, LLC - PA 547E MARIETTA PA
2021-02-05 223-248-2XXX 2000–2999Assigned ONVOY, LLC - PA 547E MCONELLSBG PA
2021-02-05 223-248-3XXX 3000–3999Assigned ONVOY, LLC - PA 547E MCONELLSBG PA
2021-02-05 223-300-1XXX 1000–1999Assigned TELNYX LLC 073H BROGUE PA
2021-02-05 223-332-4XXX 4000–4999Assigned ONVOY, LLC - PA 547E LYKENS PA
2021-02-05 223-332-5XXX 5000–5999Assigned ONVOY, LLC - PA 547E LYKENS PA
2021-02-05 223-677-2XXX 2000–2999Assigned ONVOY, LLC - PA 547E REEDSVILLE PA
2021-02-05 223-677-3XXX 3000–3999Assigned ONVOY, LLC - PA 547E REEDSVILLE PA
2021-02-04 223-206-4XXX 4000–4999Assigned ONVOY, LLC - PA 547E FAYETTEVL PA
2021-02-04 223-206-5XXX 5000–5999Assigned ONVOY, LLC - PA 547E FAYETTEVL PA
2021-02-04 223-208-6XXX 6000–6999Assigned ONVOY, LLC - PA 547E LEWISTOWN PA
2021-02-04 223-208-7XXX 7000–7999Assigned ONVOY, LLC - PA 547E LEWISTOWN PA
2021-02-04 223-209-6XXX 6000–6999Assigned ONVOY, LLC - PA 547E MTHOLLYSPG PA
2021-02-04 223-213-5XXX 5000–5999Assigned ONVOY, LLC - PA 547E DILLSBURG PA
2021-02-04 223-213-7XXX 7000–7999Assigned ONVOY, LLC - PA 547E DILLSBURG PA
2021-02-04 223-214-7XXX 7000–7999Assigned ONVOY, LLC - PA 547E FRYSTOWN PA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.