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
2013-08-07 412-533-8XXX 8000–8999Assigned ONVOY, LLC - PA 547E CLAIRTON PA
2013-07-30 412-283-8XXX 8000–8999Assigned IP HORIZON LLC 515J PTGSBNZN12 PA
2013-07-30 412-376-1XXX 1000–1999Assigned IP HORIZON LLC 515J PTGSBNZN22 PA
2013-07-30 412-458-9XXX 9000–9999Assigned IP HORIZON LLC 515J PTTSBGZON7 PA
2013-07-30 412-465-7XXX 7000–7999Assigned IP HORIZON LLC 515J PTGSBNZN10 PA
2013-07-30 412-473-9XXX 9000–9999Assigned IP HORIZON LLC 515J PTTSBGZON4 PA
2013-07-23 412-529-2XXX 2000–2999Assigned FIDIUM ENTERPRISE SERVICES, LLC 8597 PTTSBGZON1 PA
2013-07-23 412-529-3XXX 3000–3999Assigned FIDIUM ENTERPRISE SERVICES, LLC 8597 PTTSBGZON1 PA
2013-07-23 412-529-4XXX 4000–4999Assigned FIDIUM ENTERPRISE SERVICES, LLC 8597 PTTSBGZON1 PA
2013-07-23 412-529-5XXX 5000–5999Assigned FIDIUM ENTERPRISE SERVICES, LLC 8597 PTTSBGZON1 PA
2013-07-23 412-529-6XXX 6000–6999Assigned FIDIUM ENTERPRISE SERVICES, LLC 8597 PTTSBGZON1 PA
2013-07-23 412-529-7XXX 7000–7999Assigned FIDIUM ENTERPRISE SERVICES, LLC 8597 PTTSBGZON1 PA
2013-07-23 412-529-8XXX 8000–8999Assigned FIDIUM ENTERPRISE SERVICES, LLC 8597 PTTSBGZON1 PA
2013-07-11 412-694-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J PTTSBGZON1 PA
2013-06-28 412-515-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - PA 4007 PTTSBGZON1 PA
2013-06-21 412-283-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J PTGSBNZN12 PA
2013-06-21 412-525-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2013-06-21 412-525-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2013-06-21 412-525-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2013-06-21 412-847-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J PTGSBNZN17 PA
2013-06-14 412-230-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PTTSBGZON1 PA
2013-06-13 412-375-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J PTGSBNZN15 PA
2013-06-07 412-627-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2013-06-07 412-627-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2013-06-07 412-627-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2013-06-07 412-627-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2013-06-07 412-660-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2013-06-07 412-742-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2013-06-07 412-742-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2013-06-07 412-742-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2013-06-07 412-742-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2013-06-07 412-742-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2013-06-05 412-748-3XXX 3000–3999Assigned VERIZON PENNSYLVANIA, INC. 9208 PTGSBNZN17 PA
2013-06-05 412-748-4XXX 4000–4999Assigned VERIZON PENNSYLVANIA, INC. 9208 PTGSBNZN17 PA
2013-06-05 412-748-5XXX 5000–5999Assigned VERIZON PENNSYLVANIA, INC. 9208 PTGSBNZN17 PA
2013-06-05 412-748-6XXX 6000–6999Assigned VERIZON PENNSYLVANIA, INC. 9208 PTGSBNZN17 PA
2013-06-05 412-748-7XXX 7000–7999Assigned VERIZON PENNSYLVANIA, INC. 9208 PTGSBNZN17 PA
2013-06-05 412-863-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J PTTSBGZON1 PA
2013-05-30 412-709-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2013-05-30 412-709-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2013-05-30 412-709-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2013-05-30 412-709-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2013-05-30 412-709-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2013-05-29 412-632-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON3 PA
2013-05-20 412-436-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PTTSBGZON4 PA
2013-05-17 412-206-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PTGSBNZN13 PA
2013-05-17 412-368-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PTTSBGZON5 PA
2013-05-08 412-387-6XXX 6000–6999Assigned ONVOY, LLC - PA 547E ELIZABETH PA
2013-05-07 412-505-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J PTGSBNZN14 PA
2013-05-03 412-632-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J PTTSBGZON3 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.