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
— 757-555 not yet reported which blocks → MULTIPLE OCN LISTING MULT DIR ASST VA
— 757-557 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-558 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON3 VA
— 757-560 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NRFOLKZON1 VA
— 757-561 0XXX2XXX · 2 holders which blocks → METROPCS, INC. 5562 WILLIAMSBG VA
— 757-562 9XXX which blocks → VERIZON SOUTH, INC. - VA (CONTEL) 0233 FRANKLIN VA
— 757-563 1XXX3XXX4XXX5XXX6XXX · 3 holders which blocks → VERIZON SOUTH, INC. - VA (CONTEL) 0233 NRFOLKZON4 VA
— 757-564 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 WILLIAMSBG VA
— 757-565 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 WILLIAMSBG VA
— 757-566 5XXX6XXX7XXX · 3 holders which blocks → VERIZON VIRGINIA, INC. 9213 TOANO VA
— 757-567 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 NRFOLKZON3 VA
— 757-569 not yet reported which blocks → VERIZON SOUTH, INC. - VA (CONTEL) 0233 FRANKLIN VA
— 757-570 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 NWPTNWSZN3 VA
— 757-572 none assigned yet which blocks → METROPCS, INC. 5562 NRFOLKZON1 VA
— 757-573 0XXX2XXX9XXX · 2 holders which blocks → METROPCS, INC. 5562 NRFOLKZON1 VA
— 757-574 0XXX1XXX2XXX9XXX · 3 holders which blocks → METROPCS, INC. 5562 NRFOLKZON1 VA
— 757-576 0XXX2XXX which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NRFOLKZON1 VA
— 757-577 1XXX2XXX3XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NRFOLKZON1 VA
— 757-578 0XXX1XXX2XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-579 0XXX1XXX8XXX9XXX · 3 holders which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-580 0XXX1XXX2XXX9XXX · 2 holders which blocks → METROPCS, INC. 5562 NRFOLKZON1 VA
— 757-581 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NRFOLKZON2 VA
— 757-582 none assigned yet which blocks → METROPCS, INC. 5562 NRFOLKZON3 VA
— 757-583 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-587 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-588 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-591 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NWPTNWSZN1 VA
— 757-592 9XXX which blocks → METROPCS, INC. 5562 NWPTNWSZN1 VA
— 757-593 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NWPTNWSZN1 VA
— 757-594 5XXX6XXX which blocks → VERIZON VIRGINIA, INC. 9213 NWPTNWSZN1 VA
— 757-595 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NWPTNWSZN1 VA
— 757-596 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NWPTNWSZN1 VA
— 757-597 1XXX3XXX4XXX5XXX6XXX8XXX which blocks → VERIZON VIRGINIA, INC. 9213 NWPTNWSZN1 VA
— 757-598 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - VA 079F NWPTNWSZN4 VA
— 757-599 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NWPTNWSZN1 VA
— 757-604 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → VERIZON VIRGINIA, INC. 9213 NWPTNWSZN3 VA
— 757-605 8XXX which blocks → PAETEC ITEL, LLC 829J NRFOLKZON2 VA
— 757-606 0XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → COMCAST IP PHONE, LLC 318J NRFOLKZON3 VA
— 757-608 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J WILLIAMSBG VA
— 757-611 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX VA
— 757-612 1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-613 6XXX8XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 NRFOLKZON2 VA
— 757-615 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 NRFOLKZON2 VA
— 757-616 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-617 8XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 NRFOLKZON2 VA
— 757-618 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 NRFOLKZON2 VA
— 757-619 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 NRFOLKZON2 VA
— 757-620 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 NRFOLKZON2 VA
— 757-621 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 NRFOLKZON2 VA
— 757-622 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.