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 757
VERIZON VIRGINIA, INC. 220
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 105
OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 80
COMCAST IP PHONE, LLC 73
PAETEC ITEL, LLC 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
— 757-483 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON3 VA
— 757-484 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON3 VA
— 757-485 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON3 VA
— 757-486 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-487 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON3 VA
— 757-488 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON3 VA
— 757-489 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-490 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-491 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-492 not yet reported which blocks → COMCAST IP PHONE, LLC 318J NRFOLKZON2 VA
— 757-493 1XXX3XXX · 2 holders which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-494 6XXX which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-495 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-496 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-497 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-498 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-499 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-502 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-503 9XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 NWPTNWSZN3 VA
— 757-508 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 NWPTNWSZN3 VA
— 757-509 4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 NWPTNWSZN3 VA
— 757-511 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX VA
— 757-512 4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J NRFOLKZON1 VA
— 757-514 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 8 holders which blocks → PAETEC ITEL, LLC 829J SUFFOLK VA
— 757-516 0XXX3XXX4XXX5XXX7XXX9XXX · 5 holders which blocks → VERIZON SOUTH, INC. - VA (CONTEL) 0233 FRANKLIN VA
— 757-517 0XXX1XXX2XXX3XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - VA 8825 FRANKLIN VA
— 757-518 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-519 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-521 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-523 3XXX which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-529 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → PAETEC ITEL, LLC 829J CRITTENDEN VA
— 757-531 5XXX6XXX7XXX · 2 holders which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-532 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 NWPTNWSZN3 VA
— 757-533 1XXX2XXX which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-534 5XXX6XXX8XXX9XXX · 2 holders which blocks → COMCAST IP PHONE, LLC 318J NWPTNWSZN1 VA
— 757-535 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NRFOLKZON3 VA
— 757-536 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 NRFOLKZON3 VA
— 757-537 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NRFOLKZON3 VA
— 757-538 6XXX7XXX · 2 holders which blocks → VERIZON VIRGINIA, INC. 9213 SUFFOLK VA
— 757-539 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 SUFFOLK VA
— 757-543 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-544 8XXX9XXX · 2 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NRFOLKZON2 VA
— 757-545 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-546 4XXX which blocks → VERIZON SOUTH, INC. - VA (CONTEL) 0233 NRFOLKZON1 VA
— 757-547 6XXX which blocks → VERIZON SOUTH, INC. - VA (CONTEL) 0233 NRFOLKZON1 VA
— 757-548 not yet reported which blocks → VERIZON SOUTH, INC. - VA (CONTEL) 0233 NRFOLKZON1 VA
— 757-549 not yet reported which blocks → VERIZON SOUTH, INC. - VA (CONTEL) 0233 NRFOLKZON1 VA
— 757-552 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-553 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NRFOLKZON1 VA
— 757-554 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA

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.