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
— 302-786 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → PAETEC ITEL, LLC 829J HARRINGTON 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
— 302-804 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J GUMBORO DE
— 302-811 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX DE
— 302-815 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J GREENWOOD DE
— 302-822 not yet reported which blocks → REDI-CALL COMMUNICATIONS CO. 6810 GEORGETOWN DE
— 302-826 0XXX1XXX2XXX3XXX4XXX7XXX8XXX which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7309 HOLLY OAK DE
— 302-827 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7309 LEWES DE
— 302-828 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7309 MIDDLETOWN DE
— 302-829 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7309 OCEAN VIEW 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
— 302-839 2XXX which blocks → PAETEC ITEL, LLC 829J MILFORD DE
— 302-841 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX which blocks → PAETEC ITEL, LLC 829J GEORGETOWN 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
— 302-857 0XXX9XXX · 2 holders which blocks → VERIZON DELAWARE, INC. 9210 DOVER DE
— 302-858 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → VERIZON DELAWARE, INC. 9210 GEORGETOWN DE
— 302-861 2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 NEWARK DE
— 302-864 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7309 REHOBOTH DE
— 302-865 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 7 holders which blocks → PAETEC ITEL, LLC 829J FREDERICA DE
— 302-870 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → PAETEC ITEL, LLC 829J FELTON DE
— 302-875 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 LAUREL DE
— 302-877 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → VERIZON DELAWARE, INC. 9210 LAUREL DE
— 302-883 1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J DOVER DE
— 302-884 0XXX1XXX2XXX7XXX8XXX · 3 holders which blocks → VERIZON DELAWARE, INC. 9210 WILMINGTON DE
— 302-885 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 WILMINGTON DE
— 302-886 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 WILMINGTON DE
— 302-887 0XXX1XXX2XXX6XXX9XXX · 3 holders which blocks → VERIZON DELAWARE, INC. 9210 WILMINGTON DE
— 302-888 8XXX9XXX · 2 holders which blocks → VERIZON DELAWARE, INC. 9210 WILMINGTON DE
— 302-892 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 WILMINGTON DE
— 302-893 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DE 6393 WILMINGTON DE
— 302-894 2XXX3XXX4XXX5XXX7XXX8XXX · 3 holders which blocks → VERIZON DELAWARE, INC. 9210 NEWARK DE
— 302-907 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 7 holders which blocks → PAETEC ITEL, LLC 829J DELMAR DE
— 302-911 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX DE
— 302-918 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → PAETEC ITEL, LLC 829J DELAWARECY DE
— 302-924 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J HARRINGTON DE
— 302-927 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → PAETEC ITEL, LLC 829J DAGSBORO 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.