NumberResearch Membership · Data 09/26/2026

Recent prefix assignments

360 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/26/2026

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
8X8, INC. 43
NEW CINGULAR WIRELESS PCS, LLC - DC 28
ONVOY, LLC - CA 26
NEW CINGULAR WIRELESS PCS, LLC - IL 26
Rogers Communications Canada Inc. (Wireless) 23
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
— 302-607 1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J NEWARK DE
— 302-611 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX DE
— 302-613 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J NEW CASTLE DE
— 302-622 2XXX5XXX · 2 holders which blocks → VERIZON DELAWARE, INC. 9210 WILMINGTON DE
— 302-623 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 NEWARK DE
— 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

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.