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 717
VERIZON PENNSYLVANIA, INC. 121
BRIGHTSPEED OF PENNSYLVANIA, LLC 80
NEW CINGULAR WIRELESS PCS, LLC - DC 77
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 72
LEVEL 3 COMMUNICATIONS, LLC - PA 65
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
— 717-608 not yet reported which blocks → D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 HARISBGZN1 PA
— 717-609 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 CARLISLE PA
— 717-610 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7309 MECHANCSBG PA
— 717-611 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX PA
— 717-612 0XXX2XXX4XXX8XXX · 3 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 HARISBGZN1 PA
— 717-615 not yet reported which blocks → D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 LANCASTER PA
— 717-616 1XXX2XXX3XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MIDDLETOWN PA
— 717-618 2XXX3XXX6XXX8XXX9XXX · 3 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 LANDISVL PA
— 717-619 0–9 XXXall 10 · 6 holders which blocks → CORE COMMUNICATIONS, INC. - PA 3806 EASTBERLIN PA
— 717-620 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → WINDSTREAM D & E SYSTEMS, INC. - PA 4114 MECHANCSBG PA
— 717-623 not yet reported which blocks → D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 HARISBGZN1 PA
— 717-624 not yet reported which blocks → BRIGHTSPEED OF PENNSYLVANIA, LLC 0209 NEW OXFORD PA
— 717-625 5XXX8XXX · 2 holders which blocks → WINDSTREAM D&E, INC. 0165 LITITZ PA
— 717-626 not yet reported which blocks → WINDSTREAM D&E, INC. 0165 LITITZ PA
— 717-627 not yet reported which blocks → WINDSTREAM D&E, INC. 0165 LITITZ PA
— 717-629 none assigned yet which blocks → METROPCS, INC. 5562 LANCASTER PA
— 717-630 not yet reported which blocks → BRIGHTSPEED OF PENNSYLVANIA, LLC 0209 HANOVER PA
— 717-632 not yet reported which blocks → BRIGHTSPEED OF PENNSYLVANIA, LLC 0209 HANOVER PA
— 717-633 not yet reported which blocks → BRIGHTSPEED OF PENNSYLVANIA, LLC 0209 HANOVER PA
— 717-634 1XXX2XXX3XXX4XXX5XXX7XXX8XXX · 4 holders which blocks → D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 HANOVER PA
— 717-635 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → WINDSTREAM D & E SYSTEMS, INC. - PA 4114 HARISBGZN1 PA
— 717-637 not yet reported which blocks → BRIGHTSPEED OF PENNSYLVANIA, LLC 0209 HANOVER PA
— 717-638 0–9 XXXall 10 · 7 holders which blocks → BANDWIDTH.COM CLEC, LLC - PA 002F DILLSBURG PA
— 717-641 1XXX2XXX3XXX6XXX7XXX9XXX · 6 holders which blocks → PAETEC ITEL, LLC 829J PALMYRA PA
— 717-642 4XXX which blocks → BRIGHTSPEED OF PENNSYLVANIA, LLC 0209 FAIRFIELD PA
— 717-646 not yet reported which blocks → BRIGHTSPEED OF PENNSYLVANIA, LLC 0209 HANOVER PA
— 717-647 5XXX which blocks → COMMONWEALTH TELEPHONE COMPANY LLC 0161 TOWER CITY PA
— 717-648 none assigned yet which blocks → D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 HARISBGZN1 PA
— 717-649 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HARISBGZN1 PA
— 717-651 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 HARISBGZN1 PA
— 717-652 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 HARISBGZN1 PA
— 717-653 not yet reported which blocks → BRIGHTSPEED OF PENNSYLVANIA, LLC 0209 MOUNT JOY PA
— 717-655 0–9 XXXall 10 · 3 holders which blocks → D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 WAYNESBORO PA
— 717-656 not yet reported which blocks → FRONTIER COMMUNICATIONS OF PENNSYLVANIA, LLC 0168 LEOLA PA
— 717-657 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 HARISBGZN1 PA
— 717-659 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 YORK PA
— 717-661 0XXX1XXX3XXX · 3 holders which blocks → FRONTIER COMMUNICATIONS OF PENNSYLVANIA, LLC 0168 LEOLA PA
— 717-664 not yet reported which blocks → WINDSTREAM D&E, INC. 0165 MANHEIM PA
— 717-665 not yet reported which blocks → WINDSTREAM D&E, INC. 0165 MANHEIM PA
— 717-666 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 LANCASTER PA
— 717-667 7XXX8XXX · 2 holders which blocks → BRIGHTSPEED OF PENNSYLVANIA, LLC 0209 REEDSVILLE PA
— 717-669 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LANCASTER PA
— 717-671 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 HARISBGZN1 PA
— 717-672 1XXX4XXX6XXX8XXX which blocks → VERIZON PENNSYLVANIA, INC. 9208 LANCASTER PA
— 717-674 0–9 XXXall 10 · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 DAUPHIN PA
— 717-675 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → WINDSTREAM D & E SYSTEMS, INC. - PA 4114 LEBANON PA
— 717-677 1XXX2XXX · 2 holders which blocks → BRIGHTSPEED OF PENNSYLVANIA, LLC 0209 BIGLERVL PA
— 717-679 3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LEBANON PA
— 717-681 1XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → BRIGHTSPEED OF PENNSYLVANIA, LLC 0209 COLUMBIA PA
— 717-683 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 YORK 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.