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 302
VERIZON DELAWARE, INC. 175
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
— 302-672 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
— 302-683 1XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → VERIZON DELAWARE, INC. 9210 WILMINGTON DE
— 302-684 6XXX7XXX9XXX · 3 holders which blocks → VERIZON DELAWARE, INC. 9210 MILTON DE
— 302-695 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 WILMINGTON 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
— 302-730 2XXX6XXX7XXX · 2 holders which blocks → VERIZON DELAWARE, INC. 9210 DOVER DE
— 302-731 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 NEWARK DE
— 302-732 0XXX2XXX4XXX5XXX7XXX8XXX · 4 holders which blocks → VERIZON DELAWARE, INC. 9210 DAGSBORO DE
— 302-733 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 NEWARK DE
— 302-734 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 DOVER DE
— 302-735 0XXX which blocks → VERIZON DELAWARE, INC. 9210 DOVER DE
— 302-736 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 DOVER DE
— 302-737 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 NEWARK DE
— 302-738 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 NEWARK DE
— 302-739 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 DOVER DE
— 302-741 3XXX4XXX5XXX6XXX · 2 holders which blocks → VERIZON DELAWARE, INC. 9210 DOVER DE
— 302-744 0XXX8XXX · 2 holders which blocks → VERIZON DELAWARE, INC. 9210 DOVER DE
— 302-758 3XXX9XXX which blocks → VERIZON DELAWARE, INC. 9210 NEWARK DE
— 302-760 1XXX3XXX5XXX9XXX · 3 holders which blocks → VERIZON DELAWARE, INC. 9210 DOVER DE
— 302-761 0XXX3XXX which blocks → VERIZON DELAWARE, INC. 9210 WILMINGTON DE
— 302-762 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 WILMINGTON DE
— 302-764 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 WILMINGTON DE
— 302-765 7XXX8XXX which blocks → VERIZON DELAWARE, INC. 9210 WILMINGTON DE
— 302-772 2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → VERIZON DELAWARE, INC. 9210 WILMINGTON DE
— 302-773 8XXX which blocks → VERIZON DELAWARE, INC. 9210 WILMINGTON DE
— 302-774 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 NEWARK DE
— 302-777 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 WILMINGTON DE
— 302-778 9XXX which blocks → VERIZON DELAWARE, INC. 9210 WILMINGTON DE
— 302-784 0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 4 holders which blocks → VERIZON DELAWARE, INC. 9210 WILMINGTON DE
— 302-791 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 HOLLY OAK DE
— 302-792 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 HOLLY OAK DE
— 302-793 9XXX which blocks → VERIZON DELAWARE, INC. 9210 HOLLY OAK DE
— 302-797 0XXX1XXX4XXX5XXX8XXX9XXX · 5 holders which blocks → VERIZON DELAWARE, INC. 9210 HOLLY OAK DE
— 302-798 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 HOLLY OAK DE
— 302-830 0XXX2XXX3XXX7XXX8XXX · 3 holders which blocks → VERIZON DELAWARE, INC. 9210 WILMINGTON DE
— 302-831 5XXX which blocks → VERIZON DELAWARE, INC. 9210 NEWARK DE
— 302-832 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 DELAWARECY DE
— 302-834 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 DELAWARECY DE
— 302-836 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 DELAWARECY DE
— 302-837 0XXX3XXX4XXX5XXX6XXX7XXX9XXX · 5 holders which blocks → VERIZON DELAWARE, INC. 9210 NEWARK DE
— 302-838 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 DELAWARECY DE
— 302-846 1XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → VERIZON DELAWARE, INC. 9210 DELMAR DE
— 302-853 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → VERIZON DELAWARE, INC. 9210 GEORGETOWN DE
— 302-854 1XXX8XXX · 2 holders which blocks → VERIZON DELAWARE, INC. 9210 GEORGETOWN DE
— 302-855 3XXX4XXX8XXX · 2 holders which blocks → VERIZON DELAWARE, INC. 9210 GEORGETOWN DE
— 302-856 8XXX which blocks → VERIZON DELAWARE, INC. 9210 GEORGETOWN 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.