NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.

Most active assignees, all time — NPA 724
VERIZON PENNSYLVANIA, INC. 166
TELEPORT COMMUNICATIONS AMERICA, LLC - PA 74
LEVEL 3 COMMUNICATIONS, LLC - PA 69
NEW CINGULAR WIRELESS PCS, LLC - IL 60
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 59
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 NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2024-04-26 724-460 0XXX1XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - PA 547E ELLWOOD CY PA
2024-03-21 724-955 0XXX1XXX5XXX · 2 holders which blocks → ONVOY, LLC - PA 547E MONONGAHLA PA
2023-07-20 724-724 0XXX1XXX4XXX7XXX8XXX9XXX · 4 holders which blocks → AT&T - LOCAL 7421 BADEN PA
2023-06-15 724-412 0–9 XXXall 10 · 2 holders which blocks → BOOST SUBSCRIBERCO L.L.C. 490J CANONSBURG PA
2021-07-19 724-233 1XXX2XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J WAMPUM PA
2019-05-08 724-792 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → COMCAST IP PHONE, LLC 318J WALEXANDER PA
2018-08-22 724-395 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - PA 547E CHARLEROI PA
2017-03-09 724-936 0–9 XXXall 10 · 8 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 NEW CASTLE PA
2015-10-02 724-394 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → COMCAST IP PHONE, LLC 318J YOUNGWOOD PA
2013-12-09 724-332 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 BUTLER PA
2013-04-11 724-670 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E NEWBEDFORD PA
2013-02-06 724-800 0–9 XXXall 10 · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - PA 002F PRINCETON PA
2012-10-26 724-221 0–9 XXXall 10 · 6 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 GREENSBURG PA
2012-09-25 724-900 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 CRIDERSCOR PA
2012-05-31 724-617 0–9 XXXall 10 · 7 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7315 CLYMER PA
2012-03-07 724-500 0XXX1XXX3XXX4XXX5XXX7XXX · 6 holders which blocks → WINDSTREAM PENNSYLVANIA, INC. 0176 NEWALXNDRI PA
2012-03-07 724-999 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 8 holders which blocks → WINDSTREAM PENNSYLVANIA, INC. 0176 JAMESTOWN PA
2011-12-20 724-442 0–9 XXXall 10 · 5 holders which blocks → WINDSTREAM PENNSYLVANIA, INC. 0176 FREDONIA PA
2011-07-15 724-793 0XXX1XXX2XXX3XXX7XXX8XXX9XXX · 4 holders which blocks → WINDSTREAM PENNSYLVANIA, INC. 0176 KITTANNING PA
2011-03-07 724-393 0–9 XXXall 10 · 5 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 NEWKNSNGTN PA
2011-01-25 724-672 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 GREENSBURG PA
2010-08-19 724-888 0–9 XXXall 10 · 6 holders which blocks → PAETEC ITEL, LLC 829J ROCHESTER PA
2010-08-13 724-786 0–9 XXXall 10 · 5 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 FREEPORT PA
2010-06-22 724-688 0–9 XXXall 10 · 7 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HERMINIE PA
2010-06-14 724-487 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 BUTLER PA
2010-02-09 724-237 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 GREENSBURG PA
2009-11-16 724-621 0XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BOBTOWN PA
2009-03-20 724-280 0XXX7XXX · 2 holders which blocks → CORE COMMUNICATIONS, INC. - PA 3806 NEW FREEPT PA
2009-03-20 724-563 0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 3 holders which blocks → CORE COMMUNICATIONS, INC. - PA 3806 STAHLSTOWN PA
2009-03-20 724-641 0XXX7XXX · 2 holders which blocks → CORE COMMUNICATIONS, INC. - PA 3806 SPRAGGS PA
2009-03-20 724-706 0XXX1XXX7XXX · 3 holders which blocks → CORE COMMUNICATIONS, INC. - PA 3806 ROGERSVL PA
2009-03-20 724-721 0XXX1XXX2XXX3XXX which blocks → CORE COMMUNICATIONS, INC. - PA 3806 YUKON PA
2009-03-20 724-874 0XXX1XXX3XXX4XXX7XXX8XXX9XXX · 6 holders which blocks → WINDSTREAM PENNSYLVANIA, INC. 0176 WESTFORD PA
2009-03-19 724-474 0XXX1XXX2XXX3XXX4XXX6XXX7XXX · 4 holders which blocks → CORE COMMUNICATIONS, INC. - PA 3806 INDIANHEAD PA
2009-03-19 724-534 0XXX1XXX2XXX3XXX5XXX6XXX · 3 holders which blocks → CORE COMMUNICATIONS, INC. - PA 3806 MURDOCKSVL PA
2009-03-19 724-559 0XXX7XXX9XXX · 3 holders which blocks → CORE COMMUNICATIONS, INC. - PA 3806 BRAVE PA
2009-03-19 724-666 0–9 XXXall 10 · 3 holders which blocks → CORE COMMUNICATIONS, INC. - PA 3806 HICKORY PA
2009-03-19 724-708 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREENSBURG PA
2009-03-19 724-956 0XXX1XXX6XXX7XXX · 4 holders which blocks → CORE COMMUNICATIONS, INC. - PA 3806 MT MORRIS PA
2009-02-23 724-691 0–9 XXXall 10 · 4 holders which blocks → COMCAST IP PHONE, LLC 318J GREENSBURG PA
2009-02-13 724-661 0XXX2XXX5XXX6XXX · 4 holders which blocks → IDT AMERICA, CORP. - PA 213C SCENERY HL PA
2009-02-13 724-669 0–9 XXXall 10 · 6 holders which blocks → IDT AMERICA, CORP. - PA 213C BENTLEYVL PA
2009-02-13 724-751 0XXX1XXX2XXX3XXX5XXX · 4 holders which blocks → IDT AMERICA, CORP. - PA 213C MARIANNA PA
2008-09-15 724-610 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 GREENSBURG PA
2008-09-05 724-236 0–9 XXXall 10 · 7 holders which blocks → COMCAST IP PHONE, LLC 318J LEECHBURG PA
2008-09-05 724-828 0XXX1XXX2XXX4XXX6XXX7XXX8XXX · 7 holders which blocks → COMCAST IP PHONE, LLC 318J MIDWAY PA
2008-09-03 724-200 0–9 XXXall 10 · 6 holders which blocks → COMCAST IP PHONE, LLC 318J ENONVALLEY PA
2008-06-11 724-819 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → ONVOY, LLC - PA 547E CLAYSVILLE PA
2008-06-10 724-996 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 BUTLER PA
2008-05-09 724-844 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX · 7 holders which blocks → WINDSTREAM PENNSYLVANIA, INC. 0176 SANDY LAKE PA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.