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
2020-12-11 223-216-8XXX 8000–8999Assigned PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E LANDISVL PA
2020-12-10 223-229-0XXX 0000–0999Assigned METROPCS, INC. 5562 LEBANON PA
2020-12-10 223-229-2XXX 2000–2999Assigned METROPCS, INC. 5562 LEBANON PA
2020-12-10 223-400-9XXX 9000–9999Assigned METROPCS, INC. 5562 HANOVER PA
2020-11-23 223-232-5XXX 5000–5999Assigned PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E YORK PA
2020-11-23 223-758-1XXX 1000–1999Assigned PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E MECHANCSBG PA
2020-11-23 223-977-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7315 PORT ROYAL PA
2020-11-11 223-217-7XXX 7000–7999Assigned ONVOY, LLC - PA 547E LEOLA PA
2020-11-11 223-217-8XXX 8000–8999Assigned ONVOY, LLC - PA 547E LEOLA PA
2020-11-11 223-356-5XXX 5000–5999Assigned ONVOY, LLC - PA 547E INTERCOURS PA
2020-11-11 223-356-6XXX 6000–6999Assigned ONVOY, LLC - PA 547E INTERCOURS PA
2020-11-05 223-877-3XXX 3000–3999Assigned ONVOY, LLC - PA 547E YORK PA
2020-11-05 223-877-4XXX 4000–4999Assigned ONVOY, LLC - PA 547E YORK PA
2020-11-05 223-877-5XXX 5000–5999Assigned ONVOY, LLC - PA 547E YORK PA
2020-11-05 223-877-8XXX 8000–8999Assigned ONVOY, LLC - PA 547E YORK PA
2020-11-04 223-236-3XXX 3000–3999Assigned TWILIO INTERNATIONAL, INC. 506J MANCHESTER PA
2020-10-29 223-758-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MECHANCSBG PA
2020-10-26 223-895-8XXX 8000–8999Assigned TWILIO INTERNATIONAL, INC. 506J HARISBGZN1 PA
2020-10-14 223-797-8XXX 8000–8999Assigned TON80 COMMUNICATIONS, LLC 516J HARISBGZN1 PA
2020-10-09 223-243-2XXX 2000–2999Assigned ONVOY, LLC - PA 547E NEWBLOMFLD PA
2020-10-09 223-243-3XXX 3000–3999Assigned ONVOY, LLC - PA 547E NEWBLOMFLD PA
2020-10-07 223-244-2XXX 2000–2999Assigned ONVOY, LLC - PA 547E LANCASTER PA
2020-10-07 223-244-4XXX 4000–4999Assigned ONVOY, LLC - PA 547E LANCASTER PA
2020-10-06 223-207-3XXX 3000–3999Assigned ONVOY, LLC - PA 547E COLUMBIA PA
2020-10-06 223-238-7XXX 7000–7999Assigned ONVOY, LLC - PA 547E AIRVILLE PA
2020-10-06 223-238-8XXX 8000–8999Assigned ONVOY, LLC - PA 547E AIRVILLE PA
2020-10-06 223-500-3XXX 3000–3999Assigned ONVOY, LLC - PA 547E JEFFERSON PA
2020-10-06 223-500-4XXX 4000–4999Assigned ONVOY, LLC - PA 547E JEFFERSON PA
2020-10-02 223-204-6XXX 6000–6999Assigned ONVOY, LLC - PA 547E ICKESBURG PA
2020-10-02 223-204-7XXX 7000–7999Assigned ONVOY, LLC - PA 547E ICKESBURG PA
2020-10-02 223-205-4XXX 4000–4999Assigned ONVOY, LLC - PA 547E MARION PA
2020-10-02 223-205-5XXX 5000–5999Assigned ONVOY, LLC - PA 547E MARION PA
2020-10-02 223-240-8XXX 8000–8999Assigned HD CARRIER LLC 321J HARISBGZN1 PA
2020-10-02 223-240-9XXX 9000–9999Assigned HD CARRIER LLC 321J HARISBGZN1 PA
2020-10-02 223-255-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J GETTYSBURG PA
2020-10-02 223-255-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J GETTYSBURG PA
2020-10-02 223-255-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J GETTYSBURG PA
2020-10-01 223-208-2XXX 2000–2999Assigned ONVOY, LLC - PA 547E LEWISTOWN PA
2020-10-01 223-208-8XXX 8000–8999Assigned ONVOY, LLC - PA 547E LEWISTOWN PA
2020-10-01 223-209-7XXX 7000–7999Assigned ONVOY, LLC - PA 547E MTHOLLYSPG PA
2020-10-01 223-209-8XXX 8000–8999Assigned ONVOY, LLC - PA 547E MTHOLLYSPG PA
2020-10-01 223-308-4XXX 4000–4999Assigned ONVOY, LLC - PA 547E MILLERSVL PA
2020-10-01 223-308-8XXX 8000–8999Assigned ONVOY, LLC - PA 547E MILLERSVL PA
2020-10-01 223-747-2XXX 2000–2999Assigned PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E EASTBERLIN PA
2020-09-28 223-207-4XXX 4000–4999Assigned D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 COLUMBIA PA
2020-09-28 223-207-5XXX 5000–5999Assigned D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 COLUMBIA PA
2020-09-28 223-758-7XXX 7000–7999Assigned ONVOY, LLC - PA 547E MECHANCSBG PA
2020-09-28 223-758-8XXX 8000–8999Assigned ONVOY, LLC - PA 547E MECHANCSBG PA
2020-09-18 223-225-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J HARISBGZN1 PA
2020-09-18 223-225-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J HARISBGZN1 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.