NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

1 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, last 30 days — NPA 302
NEW CINGULAR WIRELESS PCS, LLC - DC 1
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
— 302-624 not yet reported which blocks → SCOTT SABO DBA ALLPAGE 4276 NEW CASTLE DE
— 302-628 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 SEAFORD DE
— 302-629 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 SEAFORD DE
— 302-631 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 NEWARK DE
— 302-632 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DE 6393 CAMDEN DE
— 302-633 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 WILMINGTON DE
— 302-634 0XXX which blocks → VERIZON DELAWARE, INC. 9210 WILMINGTON DE
— 302-635 0XXX1XXX2XXX4XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7309 HOCKESSIN DE
— 302-636 7XXX which blocks → VERIZON DELAWARE, INC. 9210 WILMINGTON DE
— 302-643 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 7 holders which blocks → PAETEC ITEL, LLC 829J MILTON DE
— 302-644 5XXX which blocks → VERIZON DELAWARE, INC. 9210 LEWES DE
— 302-645 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 LEWES DE
— 302-647 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → VERIZON DELAWARE, INC. 9210 WILMINGTON DE
— 302-648 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7309 MILLSBORO DE
— 302-651 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 WILMINGTON DE
— 302-652 9XXX which blocks → VERIZON DELAWARE, INC. 9210 WILMINGTON DE
— 302-653 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 SMYRNA DE
— 302-654 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 WILMINGTON DE
— 302-655 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 WILMINGTON DE
— 302-656 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 WILMINGTON DE
— 302-657 0XXX1XXX6XXX7XXX9XXX · 3 holders which blocks → VERIZON DELAWARE, INC. 9210 WILMINGTON DE
— 302-658 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 WILMINGTON DE
— 302-659 7XXX8XXX9XXX · 2 holders which blocks → VERIZON DELAWARE, INC. 9210 SMYRNA DE
— 302-661 5XXX9XXX · 2 holders which blocks → VERIZON DELAWARE, INC. 9210 WILMINGTON DE
— 302-663 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J MILLSBORO DE
— 302-664 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7309 MILTON DE
— 302-666 0–9 XXXall 10 · 6 holders which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 DOVER DE
— 302-669 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7309 NEW CASTLE DE
— 302-670 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DOVER DE
— 302-672 0XXX8XXX · 2 holders which blocks → VERIZON DELAWARE, INC. 9210 DOVER DE
— 302-674 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 DOVER DE
— 302-677 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 DOVER DE
— 302-678 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 DOVER DE
— 302-682 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX which blocks → PAETEC ITEL, LLC 829J MILFORD DE
— 302-683 1XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → VERIZON DELAWARE, INC. 9210 WILMINGTON DE
— 302-684 6XXX7XXX9XXX · 3 holders which blocks → VERIZON DELAWARE, INC. 9210 MILTON DE
— 302-685 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DE 6393 WILMINGTON DE
— 302-689 2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 NEW CASTLE DE
— 302-690 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HOCKESSIN DE
— 302-691 3XXX5XXX7XXX8XXX9XXX · 2 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WILMINGTON DE
— 302-695 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 WILMINGTON DE
— 302-696 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 8 holders which blocks → PAETEC ITEL, LLC 829J MIDDLETOWN DE
— 302-697 5XXX which blocks → VERIZON DELAWARE, INC. 9210 CAMDEN DE
— 302-698 2XXX7XXX8XXX · 3 holders which blocks → VERIZON DELAWARE, INC. 9210 CAMDEN DE
— 302-700 not yet reported which blocks → DE
— 302-703 0XXX1XXX2XXX3XXX5XXX6XXX7XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J LEWES DE
— 302-709 1XXX which blocks → PAETEC ITEL, LLC 829J NEWARK DE
— 302-711 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX DE
— 302-715 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → PAETEC ITEL, LLC 829J LAUREL DE
— 302-721 1XXX2XXX3XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J BRIDGEVL DE

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.