NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026

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
— 717-759 0–9 XXXall 10 · 8 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 GLEN ROCK PA
— 717-760 9XXX which blocks → VERIZON PENNSYLVANIA, INC. 9208 HARISBGZN1 PA
— 717-761 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 HARISBGZN1 PA
— 717-762 not yet reported which blocks → BRIGHTSPEED OF PENNSYLVANIA, LLC 0209 WAYNESBORO PA
— 717-763 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 HARISBGZN1 PA
— 717-764 not yet reported which blocks → VERIZON NORTH, INC. - PA 0169 YORK PA
— 717-765 1XXX7XXX · 2 holders which blocks → BRIGHTSPEED OF PENNSYLVANIA, LLC 0209 WAYNESBORO PA
— 717-766 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 MECHANCSBG PA
— 717-767 not yet reported which blocks → VERIZON NORTH, INC. - PA 0169 YORK PA
— 717-768 not yet reported which blocks → FRONTIER COMMUNICATIONS OF PENNSYLVANIA, LLC 0168 INTERCOURS PA
— 717-770 9XXX which blocks → VERIZON PENNSYLVANIA, INC. 9208 HARISBGZN1 PA
— 717-771 not yet reported which blocks → VERIZON NORTH, INC. - PA 0169 YORK PA
— 717-772 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 HARISBGZN1 PA
— 717-774 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 HARISBGZN1 PA
— 717-776 1XXX which blocks → BRIGHTSPEED OF PENNSYLVANIA, LLC 0209 NEWVILLE PA
— 717-777 1XXX which blocks → VERIZON PENNSYLVANIA, INC. 9208 HARISBGZN1 PA
— 717-779 1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → VERIZON NORTH, INC. - PA 0169 YORK PA
— 717-780 8XXX which blocks → VERIZON PENNSYLVANIA, INC. 9208 HARISBGZN1 PA
— 717-781 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → VERIZON NORTH, INC. - PA 0169 YORK PA
— 717-782 1XXX7XXX9XXX · 3 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 HARISBGZN1 PA
— 717-783 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 HARISBGZN1 PA
— 717-786 not yet reported which blocks → COMMONWEALTH TELEPHONE COMPANY LLC 0161 QUARRYVL PA
— 717-787 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 HARISBGZN1 PA
— 717-789 1XXX6XXX7XXX8XXX · 3 holders which blocks → BRIGHTSPEED OF PENNSYLVANIA, LLC 0209 LOYSVILLE PA
— 717-790 1XXX2XXX4XXX5XXX6XXX7XXX · 4 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 MECHANCSBG PA
— 717-791 1XXX7XXX8XXX · 2 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 MECHANCSBG PA
— 717-792 not yet reported which blocks → VERIZON NORTH, INC. - PA 0169 YORK PA
— 717-793 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX · 4 holders which blocks → VERIZON NORTH, INC. - PA 0169 YORK PA
— 717-794 6XXX7XXX8XXX9XXX which blocks → BRIGHTSPEED OF PENNSYLVANIA, LLC 0209 BLRDGSUMMT PA
— 717-795 3XXX4XXX which blocks → VERIZON PENNSYLVANIA, INC. 9208 MECHANCSBG PA
— 717-796 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 MECHANCSBG PA
— 717-798 0–9 XXXall 10 · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 HARISBGZN1 PA
— 717-800 0XXX1XXX2XXX4XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → ONVOY, LLC - PA 547E SPRING GRV PA
— 717-801 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 YORK PA
— 717-802 3XXX4XXX7XXX8XXX · 3 holders which blocks → D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 MECHANCSBG PA
— 717-805 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HARISBGZN1 PA
— 717-806 5XXX8XXX which blocks → COMMONWEALTH TELEPHONE COMPANY LLC 0161 QUARRYVL PA
— 717-808 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LANCASTER PA
— 717-810 6XXX7XXX8XXX9XXX · 2 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 HARISBGZN1 PA
— 717-811 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX PA
— 717-812 not yet reported which blocks → VERIZON NORTH, INC. - PA 0169 YORK PA
— 717-813 not yet reported which blocks → D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 LEBANON PA
— 717-815 0XXX5XXX · 2 holders which blocks → VERIZON NORTH, INC. - PA 0169 YORK PA
— 717-816 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CHAMBERSBG PA
— 717-818 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 YORK PA
— 717-820 0–9 XXXall 10 · 7 holders which blocks → ONVOY, LLC - PA 547E JONESTOWN PA
— 717-821 4XXX8XXX9XXX · 2 holders which blocks → D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 LEBANON PA
— 717-825 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → WINDSTREAM D & E SYSTEMS, INC. - PA 4114 YORK PA
— 717-827 0–9 XXXall 10 · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 HALIFAX PA
— 717-828 0–9 XXXwhole prefix which blocks → ONVOY, LLC - PA 547E HARISBGZN1 PA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.