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
2020-04-06 223-229-3XXX 3000–3999Assigned ONVOY, LLC - PA 547E LEBANON PA
2020-04-06 223-229-4XXX 4000–4999Assigned ONVOY, LLC - PA 547E LEBANON PA
2020-04-06 223-229-5XXX 5000–5999Assigned ONVOY, LLC - PA 547E LEBANON PA
2020-03-26 223-234-0XXX 0000–0999Assigned PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E HARISBGZN1 PA
2020-03-26 223-234-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F HARISBGZN1 PA
2020-03-10 223-232-9XXX 9000–9999Assigned METROPCS, INC. 5562 YORK PA
2020-02-21 223-213-8XXX 8000–8999Assigned PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E DILLSBURG PA
2020-02-17 223-233-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F SPRING GRV PA
2020-02-11 223-231-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HARISBGZN1 PA
2020-02-06 223-308-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F MILLERSVL PA
2020-01-28 223-221-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F LANCASTER PA
2020-01-28 223-323-3XXX 3000–3999Assigned ONVOY, LLC - PA 547E TERRE HILL PA
2020-01-28 223-332-3XXX 3000–3999Assigned ONVOY, LLC - PA 547E LYKENS PA
2020-01-23 223-217-0XXX 0000–0999Assigned ONVOY, LLC - PA 547E LEOLA PA
2020-01-23 223-218-0XXX 0000–0999Assigned ONVOY, LLC - PA 547E HENSEL PA
2020-01-23 223-219-0XXX 0000–0999Assigned ONVOY, LLC - PA 547E RAWLINSVL PA
2020-01-09 223-400-2XXX 2000–2999Assigned METROPCS, INC. 5562 HANOVER PA
2019-12-30 223-230-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEW OXFORD PA
2019-12-30 223-230-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEW OXFORD PA
2019-12-17 223-221-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 LANCASTER PA
2019-12-17 223-221-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 LANCASTER PA
2019-12-17 223-225-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 HARISBGZN1 PA
2019-12-06 223-220-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA 7434 CHAMBERSBG PA
2019-11-12 223-225-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J HARISBGZN1 PA
2019-11-07 223-224-0XXX 0000–0999Assigned TELNYX LLC 073H MCVEYTOWN PA
2019-10-18 223-226-7XXX 7000–7999Assigned ONVOY, LLC - PA 547E MANHEIM PA
2019-10-14 223-225-2XXX 2000–2999Assigned CSC WIRELESS, LLC 425J HARISBGZN1 PA
2019-10-09 223-220-9XXX 9000–9999Assigned METROPCS, INC. 5562 CHAMBERSBG PA
2019-10-02 223-333-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 LEBANON PA
2019-10-02 223-333-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 LEBANON PA
2019-09-06 223-221-9XXX 9000–9999Assigned PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E LANCASTER PA
2019-09-06 223-224-9XXX 9000–9999Assigned PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E MCVEYTOWN PA
2019-08-26 223-214-0XXX 0000–0999Assigned TELNYX LLC 073H FRYSTOWN PA
2019-08-22 223-204-4XXX 4000–4999Assigned ONVOY, LLC - PA 547E ICKESBURG PA
2019-08-22 223-204-5XXX 5000–5999Assigned ONVOY, LLC - PA 547E ICKESBURG PA
2019-08-22 223-205-2XXX 2000–2999Assigned ONVOY, LLC - PA 547E MARION PA
2019-08-22 223-205-3XXX 3000–3999Assigned ONVOY, LLC - PA 547E MARION PA
2019-08-22 223-208-3XXX 3000–3999Assigned ONVOY, LLC - PA 547E LEWISTOWN PA
2019-08-22 223-208-4XXX 4000–4999Assigned ONVOY, LLC - PA 547E LEWISTOWN PA
2019-08-22 223-209-4XXX 4000–4999Assigned ONVOY, LLC - PA 547E MTHOLLYSPG PA
2019-08-22 223-209-5XXX 5000–5999Assigned ONVOY, LLC - PA 547E MTHOLLYSPG PA
2019-08-22 223-242-2XXX 2000–2999Assigned ONVOY, LLC - PA 547E MARIETTA PA
2019-08-22 223-242-3XXX 3000–3999Assigned ONVOY, LLC - PA 547E MARIETTA PA
2019-08-22 223-999-6XXX 6000–6999Assigned ONVOY, LLC - PA 547E SHELLSVL PA
2019-08-21 223-201-6XXX 6000–6999Assigned ONVOY, LLC - PA 547E BIGLERVL PA
2019-08-21 223-201-7XXX 7000–7999Assigned ONVOY, LLC - PA 547E BIGLERVL PA
2019-08-21 223-203-6XXX 6000–6999Assigned ONVOY, LLC - PA 547E AIRVILLE PA
2019-08-21 223-203-7XXX 7000–7999Assigned ONVOY, LLC - PA 547E AIRVILLE PA
2019-08-21 223-206-7XXX 7000–7999Assigned ONVOY, LLC - PA 547E FAYETTEVL PA
2019-08-21 223-206-8XXX 8000–8999Assigned ONVOY, LLC - PA 547E FAYETTEVL 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.