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
— 302-945 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 ANGOLA DE
— 302-947 3XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → VERIZON DELAWARE, INC. 9210 ANGOLA DE
— 302-950 not yet reported which blocks → DE
— 302-956 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 6 holders which blocks → PAETEC ITEL, LLC 829J BRIDGEVL DE
— 302-958 not yet reported which blocks → DE
— 302-959 not yet reported which blocks → DE
— 302-966 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 8 holders which blocks → PAETEC ITEL, LLC 829J ANGOLA DE
— 302-970 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 XXXXXXXXXX DE
— 302-976 not yet reported which blocks → DE
— 302-981 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 NEWARK DE
— 302-983 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 NEWARK DE
— 302-984 7XXX8XXX9XXX · 3 holders which blocks → VERIZON DELAWARE, INC. 9210 WILMINGTON DE
— 302-985 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 5 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WILMINGTON DE
— 302-988 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7309 SELBYVILLE DE
— 302-990 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7309 SEAFORD DE
— 302-992 8XXX which blocks → VERIZON DELAWARE, INC. 9210 WILMINGTON DE
— 302-993 6XXX which blocks → VERIZON DELAWARE, INC. 9210 WILMINGTON DE
— 302-994 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 WILMINGTON DE
— 302-995 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 WILMINGTON DE
— 302-996 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 WILMINGTON DE
— 302-997 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 XXXXXXXXXX DE
— 302-998 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 WILMINGTON DE
— 302-999 not yet reported which blocks → VERIZON DELAWARE, INC. 9210 WILMINGTON 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.