NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

3 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 610
ONVOY, LLC - PA 2
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 1
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
2019-03-12 610-263-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN26 PA
2019-03-12 610-276-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN31 PA
2019-03-12 610-726-2XXX 2000–2999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN24 PA
2019-03-12 610-726-3XXX 3000–3999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN24 PA
2019-03-12 610-726-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN24 PA
2019-03-12 610-726-8XXX 8000–8999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN24 PA
2019-03-12 610-729-2XXX 2000–2999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN31 PA
2019-03-12 610-784-7XXX 7000–7999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN23 PA
2019-03-12 610-949-8XXX 8000–8999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN23 PA
2019-03-11 610-486-2XXX 2000–2999Assigned CORE COMMUNICATIONS, INC. - PA 3806 MORTONVL PA
2019-03-07 610-274-7XXX 7000–7999Assigned CORE COMMUNICATIONS, INC. - PA 3806 LANDENBERG PA
2019-03-07 610-274-9XXX 9000–9999Assigned CORE COMMUNICATIONS, INC. - PA 3806 LANDENBERG PA
2019-03-07 610-426-9XXX 9000–9999Assigned CORE COMMUNICATIONS, INC. - PA 3806 KUTZTOWN PA
2019-03-07 610-765-2XXX 2000–2999Assigned CORE COMMUNICATIONS, INC. - PA 3806 KENNETT SQ PA
2019-03-07 610-765-3XXX 3000–3999Assigned CORE COMMUNICATIONS, INC. - PA 3806 KENNETT SQ PA
2019-03-07 610-968-8XXX 8000–8999Assigned CORE COMMUNICATIONS, INC. - PA 3806 EXTON PA
2019-03-06 610-227-6XXX 6000–6999Assigned TELNYX LLC 073H PHPHSBZN23 PA
2019-03-06 610-465-2XXX 2000–2999Assigned CORE COMMUNICATIONS, INC. - PA 3806 CATASAUQUA PA
2019-03-06 610-465-3XXX 3000–3999Assigned CORE COMMUNICATIONS, INC. - PA 3806 CATASAUQUA PA
2019-03-06 610-465-4XXX 4000–4999Assigned CORE COMMUNICATIONS, INC. - PA 3806 CATASAUQUA PA
2019-03-06 610-465-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 CATASAUQUA PA
2019-03-06 610-575-3XXX 3000–3999Assigned CORE COMMUNICATIONS, INC. - PA 3806 BIRDSBORO PA
2019-03-06 610-575-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 BIRDSBORO PA
2019-03-06 610-575-7XXX 7000–7999Assigned CORE COMMUNICATIONS, INC. - PA 3806 BIRDSBORO PA
2019-03-06 610-827-3XXX 3000–3999Assigned CORE COMMUNICATIONS, INC. - PA 3806 CHESTERSPG PA
2019-03-06 610-827-4XXX 4000–4999Assigned CORE COMMUNICATIONS, INC. - PA 3806 CHESTERSPG PA
2019-02-13 610-227-3XXX 3000–3999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN23 PA
2019-02-13 610-242-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 WESTTOWN PA
2019-02-13 610-243-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 LENAPE PA
2019-02-13 610-426-2XXX 2000–2999Assigned CORE COMMUNICATIONS, INC. - PA 3806 KUTZTOWN PA
2019-02-13 610-526-3XXX 3000–3999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN25 PA
2019-02-13 610-708-2XXX 2000–2999Assigned PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E MENDENHALL PA
2019-02-13 610-744-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN12 PA
2019-02-04 610-536-3XXX 3000–3999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN21 PA
2019-01-30 610-645-2XXX 2000–2999Assigned METROPCS, INC. 5562 PHPHSBZN24 PA
2019-01-28 610-467-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 OXFORD PA
2018-12-31 610-394-5XXX 5000–5999Assigned METROPCS, INC. 5562 PHPHSBZN17 PA
2018-12-31 610-508-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 ALLENTOWN PA
2018-12-31 610-508-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 ALLENTOWN PA
2018-12-13 610-412-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PUGHTOWN PA
2018-12-10 610-840-4XXX 4000–4999Assigned METROPCS, INC. 5562 W CHESTER PA
2018-11-28 610-770-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J ALLENTOWN PA
2018-11-14 610-840-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 W CHESTER PA
2018-10-22 610-723-7XXX 7000–7999Assigned PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E PHPHSBZN22 PA
2018-10-22 610-897-7XXX 7000–7999Assigned PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E PHPHSBZN31 PA
2018-10-16 610-225-4XXX 4000–4999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN26 PA
2018-10-16 610-227-4XXX 4000–4999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN23 PA
2018-10-16 610-387-0XXX 0000–0999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN10 PA
2018-10-16 610-502-9XXX 9000–9999Assigned CORE COMMUNICATIONS, INC. - PA 3806 NORTHAMPTN PA
2018-10-16 610-546-9XXX 9000–9999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN11 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.