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
2017-04-10 610-875-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - PA 4007 GREENHILLS PA
2017-04-10 610-901-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - PA 4007 MORGANTOWN PA
2017-02-07 610-808-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA 7434 PHPHSBZN10 PA
2016-11-22 610-549-3XXX 3000–3999Assigned METROPCS, INC. 5562 PHPHSBZN13 PA
2016-11-22 610-765-0XXX 0000–0999Assigned METROPCS, INC. 5562 KENNETT SQ PA
2016-11-22 610-938-8XXX 8000–8999Assigned METROPCS, INC. 5562 PHPHSBZN13 PA
2016-11-09 610-714-5XXX 5000–5999Assigned D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 LEHIGHTON PA
2016-11-09 610-714-7XXX 7000–7999Assigned D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 LEHIGHTON PA
2016-10-27 610-609-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 PHPHSBZN21 PA
2016-09-29 610-638-0XXX 0000–0999Assigned ONVOY, LLC - PA 547E PHPHSBZN17 PA
2016-09-29 610-638-2XXX 2000–2999Assigned ONVOY, LLC - PA 547E PHPHSBZN17 PA
2016-09-26 610-379-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LEHIGHTON PA
2016-09-21 610-234-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J PHPHSBZN31 PA
2016-08-25 610-421-2XXX 2000–2999Assigned NUSO, LLC 551G EMMAUS PA
2016-08-25 610-421-3XXX 3000–3999Assigned NUSO, LLC 551G EMMAUS PA
2016-08-25 610-500-8XXX 8000–8999Assigned NUSO, LLC 551G PHPHSBZN10 PA
2016-08-25 610-579-8XXX 8000–8999Assigned NUSO, LLC 551G PHPHSBZN10 PA
2016-08-24 610-234-7XXX 7000–7999Assigned NUSO, LLC 551G PHPHSBZN31 PA
2016-08-24 610-238-8XXX 8000–8999Assigned NUSO, LLC 551G PHPHSBZN31 PA
2016-08-24 610-244-1XXX 1000–1999Assigned NUSO, LLC 551G COLLEGEVL PA
2016-08-24 610-244-8XXX 8000–8999Assigned NUSO, LLC 551G COLLEGEVL PA
2016-08-24 610-536-5XXX 5000–5999Assigned NUSO, LLC 551G PHPHSBZN21 PA
2016-08-24 610-536-7XXX 7000–7999Assigned NUSO, LLC 551G PHPHSBZN21 PA
2016-08-24 610-540-5XXX 5000–5999Assigned NUSO, LLC 551G PHPHSBZN28 PA
2016-08-24 610-540-8XXX 8000–8999Assigned NUSO, LLC 551G PHPHSBZN28 PA
2016-08-24 610-553-0XXX 0000–0999Assigned NUSO, LLC 551G PHPHSBZN17 PA
2016-08-24 610-553-8XXX 8000–8999Assigned NUSO, LLC 551G PHPHSBZN17 PA
2016-08-24 610-673-1XXX 1000–1999Assigned NUSO, LLC 551G PHPHSBZN26 PA
2016-08-24 610-673-2XXX 2000–2999Assigned NUSO, LLC 551G PHPHSBZN26 PA
2016-08-24 610-723-8XXX 8000–8999Assigned NUSO, LLC 551G PHPHSBZN22 PA
2016-08-24 610-723-9XXX 9000–9999Assigned NUSO, LLC 551G PHPHSBZN22 PA
2016-08-24 610-833-9XXX 9000–9999Assigned NUSO, LLC 551G PHPHSBZN11 PA
2016-08-24 610-851-5XXX 5000–5999Assigned NUSO, LLC 551G NORTHAMPTN PA
2016-08-24 610-851-6XXX 6000–6999Assigned NUSO, LLC 551G NORTHAMPTN PA
2016-08-24 610-922-3XXX 3000–3999Assigned NUSO, LLC 551G PHPHSBZN25 PA
2016-08-24 610-922-5XXX 5000–5999Assigned NUSO, LLC 551G PHPHSBZN25 PA
2016-08-24 610-957-0XXX 0000–0999Assigned NUSO, LLC 551G PHPHSBZN14 PA
2016-08-24 610-957-1XXX 1000–1999Assigned NUSO, LLC 551G PHPHSBZN14 PA
2016-08-18 610-222-1XXX 1000–1999Assigned THE VOICE APPLICATION NETWORK, LLC 507J CENTER PT PA
2016-08-18 610-590-6XXX 6000–6999Assigned THE VOICE APPLICATION NETWORK, LLC 507J CHESTERSPG PA
2016-08-18 610-596-3XXX 3000–3999Assigned HD CARRIER LLC 321J CATASAUQUA PA
2016-08-18 610-596-5XXX 5000–5999Assigned HD CARRIER LLC 321J CATASAUQUA PA
2016-08-18 610-596-6XXX 6000–6999Assigned THE VOICE APPLICATION NETWORK, LLC 507J CATASAUQUA PA
2016-08-18 610-596-7XXX 7000–7999Assigned HD CARRIER LLC 321J CATASAUQUA PA
2016-08-18 610-615-2XXX 2000–2999Assigned THE VOICE APPLICATION NETWORK, LLC 507J CENTER PT PA
2016-08-18 610-805-2XXX 2000–2999Assigned THE VOICE APPLICATION NETWORK, LLC 507J CENTER PT PA
2016-08-18 610-827-8XXX 8000–8999Assigned THE VOICE APPLICATION NETWORK, LLC 507J CHESTERSPG PA
2016-07-07 610-601-0XXX 0000–0999Assigned ONVOY, LLC - PA 547E CHESTERSPG PA
2016-07-07 610-601-5XXX 5000–5999Assigned ONVOY, LLC - PA 547E CHESTERSPG PA
2016-05-31 610-707-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7309 PHPHSBZN22 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.