NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

17 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 412
ONVOY, LLC - PA 11
EXIANT COMMUNICATIONS LLC 2
BANDWIDTH.COM CLEC, LLC - PA 2
NEW CINGULAR WIRELESS PCS, LLC - IL 1
AHOI 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
2018-08-20 412-435-5XXX 5000–5999Assigned ONVOY, LLC - PA 547E PTGSBNZN20 PA
2018-08-20 412-534-3XXX 3000–3999Assigned ONVOY, LLC - PA 547E PTGSBNZN16 PA
2018-08-20 412-604-7XXX 7000–7999Assigned ONVOY, LLC - PA 547E PTGSBNZN15 PA
2018-08-20 412-704-2XXX 2000–2999Assigned ONVOY, LLC - PA 547E PTGSBNZN21 PA
2018-08-20 412-784-6XXX 6000–6999Assigned ONVOY, LLC - PA 547E PTTSBGZON3 PA
2018-08-20 412-883-4XXX 4000–4999Assigned ONVOY, LLC - PA 547E PTGSBNZN14 PA
2018-08-20 412-960-8XXX 8000–8999Assigned ONVOY, LLC - PA 547E PTTSBGZON7 PA
2018-08-17 412-274-5XXX 5000–5999Assigned ONVOY, LLC - PA 547E CLAIRTON PA
2018-08-17 412-404-0XXX 0000–0999Assigned ONVOY, LLC - PA 547E PTTSBGZON8 PA
2018-08-17 412-550-4XXX 4000–4999Assigned ONVOY, LLC - PA 547E PTTSBGZON1 PA
2018-08-15 412-615-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 PTGSBNZN14 PA
2018-08-15 412-615-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 PTGSBNZN14 PA
2018-08-15 412-615-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 PTGSBNZN14 PA
2018-08-15 412-615-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 PTGSBNZN14 PA
2018-08-09 412-857-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 PTGSBNZN14 PA
2018-07-25 412-219-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PTGSBNZN18 PA
2018-07-18 412-883-0XXX 0000–0999Assigned AERIAL COMMUNICATIONS, INC. 6701 PTGSBNZN14 PA
2018-06-21 412-550-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H PTTSBGZON1 PA
2018-06-20 412-587-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PTTSBGZON7 PA
2018-06-14 412-939-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PTTSBGZON2 PA
2018-06-07 412-842-0XXX 0000–0999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PTTSBGZON1 PA
2018-06-07 412-842-1XXX 1000–1999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PTTSBGZON1 PA
2018-06-07 412-842-5XXX 5000–5999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PTTSBGZON1 PA
2018-05-14 412-256-4XXX 4000–4999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PTTSBGZON4 PA
2018-05-14 412-425-3XXX 3000–3999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PTTSBGZON5 PA
2018-05-14 412-425-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PTTSBGZON5 PA
2018-05-14 412-425-7XXX 7000–7999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PTTSBGZON5 PA
2018-05-14 412-528-3XXX 3000–3999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PTGSBNZN16 PA
2018-05-14 412-847-4XXX 4000–4999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PTGSBNZN17 PA
2018-05-11 412-274-2XXX 2000–2999Assigned CORE COMMUNICATIONS, INC. - PA 3806 CLAIRTON PA
2018-05-11 412-274-3XXX 3000–3999Assigned CORE COMMUNICATIONS, INC. - PA 3806 CLAIRTON PA
2018-05-11 412-274-4XXX 4000–4999Assigned CORE COMMUNICATIONS, INC. - PA 3806 CLAIRTON PA
2018-05-02 412-405-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F ELIZABETH PA
2018-05-02 412-822-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PTTSBGZON3 PA
2018-04-26 412-857-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J PTGSBNZN14 PA
2018-03-30 412-612-3XXX 3000–3999Assigned AERIAL COMMUNICATIONS, INC. 6701 PTGSBNZN22 PA
2018-03-30 412-883-1XXX 1000–1999Assigned AERIAL COMMUNICATIONS, INC. 6701 PTGSBNZN14 PA
2018-03-08 412-893-6XXX 6000–6999Assigned METROPCS, INC. 5562 PTGSBNZN15 PA
2018-02-28 412-935-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2018-02-28 412-935-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2018-02-28 412-935-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2018-02-28 412-935-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2018-02-28 412-935-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2018-02-28 412-935-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2018-02-21 412-625-3XXX 3000–3999Assigned METROPCS, INC. 5562 PTGSBNZN15 PA
2018-02-13 412-646-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PTGSBNZN22 PA
2018-01-30 412-710-9XXX 9000–9999Assigned ONVOY, LLC - PA 547E PTGSBNZN11 PA
2018-01-30 412-816-9XXX 9000–9999Assigned ONVOY, LLC - PA 547E PTGSBNZN22 PA
2018-01-29 412-530-6XXX 6000–6999Assigned ONVOY, LLC - PA 547E PTTSBGZON5 PA
2018-01-25 412-914-3XXX 3000–3999Assigned ONVOY, LLC - PA 547E PTGSBNZN13 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.