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
2018-10-16 610-619-9XXX 9000–9999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN11 PA
2018-10-16 610-766-4XXX 4000–4999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN23 PA
2018-10-16 610-786-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN28 PA
2018-10-16 610-808-8XXX 8000–8999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN10 PA
2018-10-16 610-843-2XXX 2000–2999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN28 PA
2018-10-16 610-843-4XXX 4000–4999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN28 PA
2018-10-16 610-843-5XXX 5000–5999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN28 PA
2018-10-15 610-516-0XXX 0000–0999Assigned CORE COMMUNICATIONS, INC. - PA 3806 LENAPE PA
2018-10-15 610-516-8XXX 8000–8999Assigned CORE COMMUNICATIONS, INC. - PA 3806 LENAPE PA
2018-10-15 610-516-9XXX 9000–9999Assigned CORE COMMUNICATIONS, INC. - PA 3806 LENAPE PA
2018-10-12 610-335-9XXX 9000–9999Assigned CORE COMMUNICATIONS, INC. - PA 3806 KENNETT SQ PA
2018-10-12 610-612-0XXX 0000–0999Assigned CORE COMMUNICATIONS, INC. - PA 3806 KENNETT SQ PA
2018-10-10 610-893-0XXX 0000–0999Assigned NUSO, LLC 551G PHPHSBZN28 PA
2018-10-10 610-893-8XXX 8000–8999Assigned NUSO, LLC 551G PHPHSBZN28 PA
2018-10-10 610-922-0XXX 0000–0999Assigned NUSO, LLC 551G PHPHSBZN25 PA
2018-10-10 610-922-9XXX 9000–9999Assigned NUSO, LLC 551G PHPHSBZN25 PA
2018-10-09 610-557-9XXX 9000–9999Assigned NUSO, LLC 551G PHPHSBZN22 PA
2018-10-09 610-723-5XXX 5000–5999Assigned NUSO, LLC 551G PHPHSBZN22 PA
2018-10-09 610-839-2XXX 2000–2999Assigned CORE COMMUNICATIONS, INC. - PA 3806 BATH PA
2018-10-09 610-839-3XXX 3000–3999Assigned CORE COMMUNICATIONS, INC. - PA 3806 BATH PA
2018-10-09 610-839-4XXX 4000–4999Assigned CORE COMMUNICATIONS, INC. - PA 3806 BATH PA
2018-10-09 610-839-5XXX 5000–5999Assigned CORE COMMUNICATIONS, INC. - PA 3806 BATH PA
2018-10-09 610-839-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 BATH PA
2018-10-09 610-839-9XXX 9000–9999Assigned CORE COMMUNICATIONS, INC. - PA 3806 BATH PA
2018-10-08 610-484-0XXX 0000–0999Assigned AIRESPRING, INC. 996H READING PA
2018-10-01 610-245-8XXX 8000–8999Assigned NUSO, LLC 551G PHPHSBZN11 PA
2018-10-01 610-833-0XXX 0000–0999Assigned NUSO, LLC 551G PHPHSBZN11 PA
2018-09-25 610-890-3XXX 3000–3999Assigned PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E AVONDALE PA
2018-09-20 610-606-5XXX 5000–5999Assigned METROPCS, INC. 5562 ALLENTOWN PA
2018-09-20 610-925-8XXX 8000–8999Assigned METROPCS, INC. 5562 KENNETT SQ PA
2018-09-14 610-840-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 W CHESTER PA
2018-09-04 610-222-5XXX 5000–5999Assigned PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E CENTER PT PA
2018-09-04 610-412-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PUGHTOWN PA
2018-09-04 610-601-8XXX 8000–8999Assigned PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E CHESTERSPG PA
2018-09-04 610-894-7XXX 7000–7999Assigned PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E KUTZTOWN PA
2018-08-28 610-936-6XXX 6000–6999Assigned ONVOY, LLC - PA 547E BETHLEHEM PA
2018-08-21 610-686-3XXX 3000–3999Assigned PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E CATASAUQUA PA
2018-08-21 610-707-8XXX 8000–8999Assigned PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E PHPHSBZN22 PA
2018-08-17 610-379-2XXX 2000–2999Assigned ONVOY, LLC - PA 547E LEHIGHTON PA
2018-08-17 610-492-6XXX 6000–6999Assigned ONVOY, LLC - PA 547E PHPHSBZN22 PA
2018-08-17 610-686-7XXX 7000–7999Assigned ONVOY, LLC - PA 547E CATASAUQUA PA
2018-08-17 610-839-0XXX 0000–0999Assigned ONVOY, LLC - PA 547E BATH PA
2018-08-14 610-885-0XXX 0000–0999Assigned ONVOY, LLC - PA 547E EAGLE PA
2018-07-09 610-427-7XXX 7000–7999Assigned METROPCS, INC. 5562 POTTSTOWN PA
2018-07-09 610-983-7XXX 7000–7999Assigned METROPCS, INC. 5562 PHOENIXVL PA
2018-07-03 610-936-1XXX 1000–1999Assigned NUSO, LLC 551G BETHLEHEM PA
2018-06-07 610-215-0XXX 0000–0999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN30 PA
2018-06-07 610-215-1XXX 1000–1999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN30 PA
2018-06-07 610-215-5XXX 5000–5999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN30 PA
2018-05-25 610-686-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F CATASAUQUA 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.