NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

5 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 717
MCIMETRO ACCESS TRANSMISSION SERVICES LLC 2
TELEPORT COMMUNICATIONS AMERICA, LLC - PA 1
ONVOY, LLC - PA 1
HD CARRIER LLC 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
2018-11-19 717-663-5XXX 5000–5999Assigned VONAGE AMERICA LLC 197D LANCASTER PA
2018-11-19 717-663-6XXX 6000–6999Assigned VONAGE AMERICA LLC 197D LANCASTER PA
2018-11-19 717-663-7XXX 7000–7999Assigned VONAGE AMERICA LLC 197D LANCASTER PA
2018-11-13 717-714-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J YORK PA
2018-11-02 717-237-1XXX 1000–1999Assigned NUSO, LLC 551G HARISBGZN1 PA
2018-11-02 717-237-9XXX 9000–9999Assigned NUSO, LLC 551G HARISBGZN1 PA
2018-11-02 717-996-6XXX 6000–6999Assigned NUSO, LLC 551G HARISBGZN1 PA
2018-11-02 717-996-7XXX 7000–7999Assigned NUSO, LLC 551G HARISBGZN1 PA
2018-11-02 717-998-2XXX 2000–2999Assigned NUSO, LLC 551G HARISBGZN1 PA
2018-11-02 717-998-3XXX 3000–3999Assigned NUSO, LLC 551G HARISBGZN1 PA
2018-11-02 717-998-4XXX 4000–4999Assigned NUSO, LLC 551G HARISBGZN1 PA
2018-11-02 717-998-5XXX 5000–5999Assigned NUSO, LLC 551G HARISBGZN1 PA
2018-11-02 717-998-6XXX 6000–6999Assigned NUSO, LLC 551G HARISBGZN1 PA
2018-11-02 717-998-7XXX 7000–7999Assigned NUSO, LLC 551G HARISBGZN1 PA
2018-10-30 717-251-5XXX 5000–5999Assigned ONVOY, LLC - PA 547E CHAMBERSBG PA
2018-10-30 717-296-8XXX 8000–8999Assigned ONVOY, LLC - PA 547E BLRDGSUMMT PA
2018-10-30 717-301-8XXX 8000–8999Assigned ONVOY, LLC - PA 547E NEWBURG PA
2018-10-30 717-325-9XXX 9000–9999Assigned ONVOY, LLC - PA 547E MCONELLSBG PA
2018-10-30 717-328-8XXX 8000–8999Assigned ONVOY, LLC - PA 547E MERCERSBG PA
2018-10-30 717-349-1XXX 1000–1999Assigned ONVOY, LLC - PA 547E DRY RUN PA
2018-10-30 717-369-8XXX 8000–8999Assigned ONVOY, LLC - PA 547E ST THOMAS PA
2018-10-30 717-788-0XXX 0000–0999Assigned ONVOY, LLC - PA 547E WAYNESBORO PA
2018-10-30 717-895-9XXX 9000–9999Assigned ONVOY, LLC - PA 547E GREENCASTL PA
2018-10-30 717-913-8XXX 8000–8999Assigned ONVOY, LLC - PA 547E SHIPPENSBG PA
2018-10-22 717-282-6XXX 6000–6999Assigned ONVOY, LLC - PA 547E PORT ROYAL PA
2018-10-22 717-282-8XXX 8000–8999Assigned ONVOY, LLC - PA 547E PORT ROYAL PA
2018-10-22 717-282-9XXX 9000–9999Assigned ONVOY, LLC - PA 547E PORT ROYAL PA
2018-10-22 717-912-4XXX 4000–4999Assigned PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E LOGANVILLE PA
2018-10-22 717-996-3XXX 3000–3999Assigned PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E HARISBGZN1 PA
2018-10-17 717-631-5XXX 5000–5999Assigned CORE COMMUNICATIONS, INC. - PA 3806 RICHFIELD PA
2018-10-17 717-631-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 RICHFIELD PA
2018-10-17 717-631-8XXX 8000–8999Assigned CORE COMMUNICATIONS, INC. - PA 3806 RICHFIELD PA
2018-10-17 717-631-9XXX 9000–9999Assigned CORE COMMUNICATIONS, INC. - PA 3806 RICHFIELD PA
2018-10-16 717-784-4XXX 4000–4999Assigned CORE COMMUNICATIONS, INC. - PA 3806 MILLERSTN PA
2018-10-16 717-784-5XXX 5000–5999Assigned CORE COMMUNICATIONS, INC. - PA 3806 MILLERSTN PA
2018-10-16 717-784-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 MILLERSTN PA
2018-10-16 717-784-7XXX 7000–7999Assigned CORE COMMUNICATIONS, INC. - PA 3806 MILLERSTN PA
2018-10-16 717-784-8XXX 8000–8999Assigned CORE COMMUNICATIONS, INC. - PA 3806 MILLERSTN PA
2018-10-16 717-784-9XXX 9000–9999Assigned CORE COMMUNICATIONS, INC. - PA 3806 MILLERSTN PA
2018-10-15 717-212-5XXX 5000–5999Assigned CORE COMMUNICATIONS, INC. - PA 3806 LEWISBERRY PA
2018-10-15 717-212-8XXX 8000–8999Assigned CORE COMMUNICATIONS, INC. - PA 3806 LEWISBERRY PA
2018-10-15 717-726-2XXX 2000–2999Assigned CORE COMMUNICATIONS, INC. - PA 3806 LEWISBERRY PA
2018-10-15 717-726-5XXX 5000–5999Assigned CORE COMMUNICATIONS, INC. - PA 3806 LEWISBERRY PA
2018-10-15 717-726-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 LEWISBERRY PA
2018-10-15 717-726-7XXX 7000–7999Assigned CORE COMMUNICATIONS, INC. - PA 3806 LEWISBERRY PA
2018-10-15 717-726-8XXX 8000–8999Assigned CORE COMMUNICATIONS, INC. - PA 3806 LEWISBERRY PA
2018-10-11 717-493-1XXX 1000–1999Assigned CORE COMMUNICATIONS, INC. - PA 3806 DRY RUN PA
2018-10-11 717-493-2XXX 2000–2999Assigned CORE COMMUNICATIONS, INC. - PA 3806 DRY RUN PA
2018-10-11 717-493-3XXX 3000–3999Assigned CORE COMMUNICATIONS, INC. - PA 3806 DRY RUN PA
2018-10-11 717-493-4XXX 4000–4999Assigned CORE COMMUNICATIONS, INC. - PA 3806 DRY RUN 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.