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
2012-03-12 412-430-5XXX 5000–5999Assigned PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E PTTSBGZON1 PA
2012-03-12 412-430-6XXX 6000–6999Assigned PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E PTTSBGZON1 PA
2012-03-12 412-430-7XXX 7000–7999Assigned PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E PTTSBGZON1 PA
2012-03-12 412-430-8XXX 8000–8999Assigned PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E PTTSBGZON1 PA
2012-03-12 412-430-9XXX 9000–9999Assigned PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E PTTSBGZON1 PA
2012-03-01 412-339-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J PTTSBGZON1 PA
2012-03-01 412-387-5XXX 5000–5999Assigned ONVOY, LLC - PA 547E ELIZABETH PA
2012-03-01 412-533-4XXX 4000–4999Assigned ONVOY, LLC - PA 547E CLAIRTON PA
2012-02-28 412-339-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PTTSBGZON1 PA
2012-02-08 412-339-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - PA 4007 PTTSBGZON1 PA
2012-01-30 412-723-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J PTTSBGZON4 PA
2012-01-26 412-501-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7315 PTTSBGZON4 PA
2012-01-20 412-275-5XXX 5000–5999Assigned ONVOY, LLC - PA 547E PTGSBNZN14 PA
2012-01-20 412-312-3XXX 3000–3999Assigned ONVOY, LLC - PA 547E PTTSBGZON2 PA
2012-01-20 412-385-4XXX 4000–4999Assigned ONVOY, LLC - PA 547E PTGSBNZN10 PA
2012-01-20 412-426-3XXX 3000–3999Assigned ONVOY, LLC - PA 547E PTGSBNZN20 PA
2012-01-20 412-504-7XXX 7000–7999Assigned ONVOY, LLC - PA 547E PTGSBNZN13 PA
2012-01-10 412-339-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PTTSBGZON1 PA
2012-01-10 412-339-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PTTSBGZON1 PA
2011-12-21 412-927-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - PA 4007 PTGSBNZN10 PA
2011-12-09 412-424-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J PTGSBNZN15 PA
2011-12-02 412-342-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PTTSBGZON4 PA
2011-12-02 412-357-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PTGSBNZN22 PA
2011-12-02 412-837-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PTGSBNZN17 PA
2011-12-01 412-345-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PTTSBGZON8 PA
2011-11-30 412-219-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PTGSBNZN18 PA
2011-11-30 412-346-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PTGSBNZN10 PA
2011-11-30 412-944-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PTTSBGZON1 PA
2011-11-14 412-229-6XXX 6000–6999Assigned VERIZON PENNSYLVANIA, INC. 9208 PTGSBNZN22 PA
2011-11-07 412-627-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2011-11-07 412-627-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2011-11-07 412-627-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2011-11-07 412-627-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2011-10-27 412-339-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - PA 4007 PTTSBGZON1 PA
2011-10-17 412-315-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PTTSBGZON1 PA
2011-10-17 412-315-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PTTSBGZON1 PA
2011-10-17 412-315-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PTTSBGZON1 PA
2011-10-07 412-709-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J PTTSBGZON1 PA
2011-09-30 412-349-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J PTGSBNZN22 PA
2011-09-28 412-315-0XXX 0000–0999Assigned PAETEC ITEL, LLC 829J PTTSBGZON1 PA
2011-09-16 412-275-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - PA 4007 PTGSBNZN14 PA
2011-09-16 412-349-5XXX 5000–5999Assigned YMAX COMMUNICATIONS CORP. - PA 283E PTGSBNZN22 PA
2011-09-06 412-275-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J PTGSBNZN14 PA
2011-08-30 412-205-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PTTSBGZON5 PA
2011-08-30 412-353-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PTTSBGZON7 PA
2011-08-30 412-437-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PTTSBGZON6 PA
2011-08-29 412-203-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PTGSBNZN15 PA
2011-08-29 412-206-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PTGSBNZN13 PA
2011-08-29 412-294-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PTGSBNZN14 PA
2011-08-29 412-301-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PTTSBGZON2 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.