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 814
VERIZON PENNSYLVANIA, INC. 110
VERIZON NORTH, INC. - PA 98
WINDSTREAM PENNSYLVANIA, INC. 71
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 59
LEVEL 3 COMMUNICATIONS, LLC - PA 48
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
2007-02-26 814-909 1XXX which blocks → TWC IP ENABLED SERVICES, LLC 793K WSPRINGFLD PA
2007-02-20 814-807 0–9 XXXall 10 · 5 holders which blocks → ARMSTRONG TELECOMMUNICATIONS, INC. - PA 422C MEADVILLE PA
2006-03-08 814-520 0–9 XXXall 10 · 3 holders which blocks → CORE COMMUNICATIONS, INC. - PA 3806 ERIE PA
2006-03-07 814-675 none assigned yet which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 TOWNVILLE PA
2006-02-13 814-407 0XXX1XXX3XXX4XXX5XXX6XXX7XXX · 4 holders which blocks → IDT AMERICA, CORP. - PA 213C WILLIAMSBG PA
2006-01-17 814-601 2XXX4XXX6XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 EMPORIUM PA
2005-10-31 814-390 0XXX5XXX6XXX · 3 holders which blocks → IDT AMERICA, CORP. - PA 213C HOPEWELL PA
2005-10-31 814-401 0XXX1XXX3XXX5XXX6XXX7XXX · 5 holders which blocks → IDT AMERICA, CORP. - PA 213C FISHERTOWN PA
2005-10-31 814-595 0XXX1XXX7XXX9XXX · 4 holders which blocks → COMCAST IP PHONE, LLC 318J CHARLESVL PA
2005-10-31 814-608 0XXX3XXX7XXX · 3 holders which blocks → IDT AMERICA, CORP. - PA 213C OSTERBURG PA
2005-10-31 814-709 0XXX1XXX3XXX6XXX7XXX9XXX · 5 holders which blocks → IDT AMERICA, CORP. - PA 213C HYNDMAN PA
2005-09-22 814-412 6XXX which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SAEGERTOWN PA
2005-09-22 814-510 2XXX7XXX · 2 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 CONNEAUTLK PA
2005-09-06 814-431 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ERIE PA
2005-08-11 814-509 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 7 holders which blocks → IDT AMERICA, CORP. - PA 213C WINDBER PA
2005-07-22 814-617 2XXX3XXX9XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 BREEZEWOOD PA
2005-07-20 814-575 0XXX2XXX3XXX4XXX7XXX · 4 holders which blocks → IDT AMERICA, CORP. - PA 213C LOYSBURG PA
2005-07-20 814-614 0XXX5XXX6XXX7XXX · 4 holders which blocks → IDT AMERICA, CORP. - PA 213C MARTINSBG PA
2005-07-20 814-710 0XXX1XXX3XXX5XXX6XXX8XXX · 6 holders which blocks → IDT AMERICA, CORP. - PA 213C CLAYSBURG PA
2005-07-20 814-729 0XXX2XXX3XXX5XXX6XXX · 4 holders which blocks → IDT AMERICA, CORP. - PA 213C ROARINGSPG PA
2005-06-06 814-519 0XXX1XXX2XXX3XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - PA 547E GALETON PA
2005-05-20 814-515 0–9 XXXall 10 · 4 holders which blocks → IDT AMERICA, CORP. - PA 213C ALTOONA PA
2005-04-18 814-405 0XXX1XXX8XXX9XXX · 3 holders which blocks → SCHUYLKILL MOBILE FONE, INC. 6739 ALTOONA PA
2005-03-23 814-403 0–9 XXXall 10 · 3 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 ERIE PA
2005-02-25 814-806 0–9 XXXall 10 · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 ERIE PA
2004-09-16 814-203 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 COUDERSPT PA
2004-07-19 814-201 0–9 XXXall 10 · 5 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA 7434 ALTOONA PA
2004-03-25 814-273 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EDINBORO PA
2004-03-24 814-439 2XXX3XXX4XXX8XXX9XXX · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CONNEAUTLK PA
2004-03-12 814-423 1XXX2XXX3XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LOYSBURG PA
2003-12-31 814-499 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - PA 002F TITUSVILLE PA
2003-09-09 814-220 5XXX6XXX7XXX · 3 holders which blocks → WINDSTREAM PENNSYLVANIA, INC. 0176 BROOKVILLE PA
2003-08-19 814-562 1XXX2XXX6XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 EMPORIUM PA
2003-07-10 814-264 0–9 XXXall 10 · 5 holders which blocks → CORE COMMUNICATIONS, INC. - PA 3806 HOWARD PA
2003-03-03 814-846 0–9 XXXall 10 · 7 holders which blocks → ONVOY, LLC - PA 547E EBENSBURG PA
2003-01-07 814-457 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 NEWBTHLHEM PA
2002-12-19 814-564 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TITUSVILLE PA
2002-12-05 814-889 0–9 XXXall 10 · 4 holders which blocks → CORE COMMUNICATIONS, INC. - PA 3806 ALTOONA PA
2002-10-22 814-482 2XXX3XXX4XXX5XXX6XXX7XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 HOWARD PA
2002-10-04 814-531 0XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 CENTREHALL PA
2002-09-24 814-462 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → METROPCS, INC. 5562 CORRY PA
2002-09-23 814-468 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 6 holders which blocks → METROPCS, INC. 5562 HOWARD PA
2002-09-23 814-469 0XXX2XXX3XXX4XXX7XXX8XXX · 4 holders which blocks → METROPCS, INC. 5562 ZION PA
2002-08-20 814-701 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 SOMERSET PA
2002-08-20 814-702 0XXX2XXX7XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 CONFLUENCE PA
2002-08-20 814-703 0XXX1XXX2XXX3XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 BOSWELL PA
2002-08-20 814-704 0XXX1XXX6XXX7XXX8XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 MEYERSDALE PA
2002-08-20 814-705 2XXX which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 GRAND VLY PA
2002-08-20 814-707 0XXX1XXX3XXX5XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 TITUSVILLE PA
2002-08-20 814-708 2XXX7XXX8XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 PLEASANTVL 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.