NumberResearch Membership · Data 09/30/2026

Recent prefix assignments

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

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
Rogers Communications Canada Inc. (Wireless) 46
8X8, INC. 43
NEW CINGULAR WIRELESS PCS, LLC - DC 28
NEW CINGULAR WIRELESS PCS, LLC - IL 23
ONVOY, LLC - CA 19
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
— 540-886 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 STAUNTON VA
— 540-887 5XXX which blocks → VERIZON VIRGINIA, INC. 9213 STAUNTON VA
— 540-888 0XXX1XXX2XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → VERIZON VIRGINIA, INC. 9213 GAINESBORO VA
— 540-889 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 4 holders which blocks → TELNYX LLC 073H CRAIGSVL VA
— 540-890 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 ROANOKE VA
— 540-891 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 FREDECKSBG VA
— 540-892 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → VERIZON VIRGINIA, INC. 9213 ROANOKE VA
— 540-893 0XXX1XXX2XXX3XXX6XXX7XXX8XXX9XXX · 8 holders which blocks → TELNYX LLC 073H LOUISA VA
— 540-894 6XXX which blocks → VERIZON VIRGINIA, INC. 9213 MINERAL VA
— 540-895 1XXX2XXX3XXX4XXX6XXX7XXX8XXX · 6 holders which blocks → VERIZON VIRGINIA, INC. 9213 BROKENBURG VA
— 540-896 not yet reported which blocks → VERIZON SOUTH, INC. - VA (CONTEL) 0233 BROADWAY VA
— 540-897 1XXX2XXX3XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CASTLE TEL. CO. 3029 PAINT BANK VA
— 540-898 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 FREDECKSBG VA
— 540-899 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 FREDECKSBG VA
— 540-901 0–9 XXXall 10 · 7 holders which blocks → COMCAST IP PHONE, LLC 318J BROADWAY VA
— 540-911 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX VA
— 540-921 none assigned yet which blocks → VERIZON VIRGINIA, INC. 9213 PEARISBURG VA
— 540-922 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → VERIZON VIRGINIA, INC. 9213 PEARISBURG VA
— 540-923 0XXX1XXX2XXX3XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → VERIZON VIRGINIA, INC. 9213 CRIGLERSVL VA
— 540-925 not yet reported which blocks → MGW TELEPHONE COMPANY, INC. 0238 WILLIAMSVL VA
— 540-929 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → VERIZON VIRGINIA, INC. 9213 BENT MT VA
— 540-931 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - VA 8825 WINCHESTER VA
— 540-932 not yet reported which blocks → LUMOS TELEPHONE LLC 0226 WAYNESBORO VA
— 540-933 not yet reported which blocks → SHENANDOAH TEL. CO. 0250 FORT VLY VA
— 540-937 0XXX1XXX8XXX · 3 holders which blocks → VERIZON VIRGINIA, INC. 9213 CULPEPER VA
— 540-939 not yet reported which blocks → MGW TELEPHONE COMPANY, INC. 0238 DEERFIELD VA
— 540-941 not yet reported which blocks → LUMOS TELEPHONE LLC 0226 WAYNESBORO VA
— 540-942 not yet reported which blocks → LUMOS TELEPHONE LLC 0226 WAYNESBORO VA
— 540-943 not yet reported which blocks → LUMOS TELEPHONE LLC 0226 WAYNESBORO VA
— 540-946 not yet reported which blocks → LUMOS TELEPHONE LLC 0226 WAYNESBORO VA
— 540-947 0XXX1XXX3XXX4XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → VERIZON VIRGINIA, INC. 9213 MONTVALE VA
— 540-948 0XXX1XXX2XXX8XXX · 3 holders which blocks → VERIZON VIRGINIA, INC. 9213 MADISON VA
— 540-949 not yet reported which blocks → LUMOS TELEPHONE LLC 0226 WAYNESBORO VA
— 540-950 not yet reported which blocks → VA
— 540-951 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 BLACKSBURG VA
— 540-953 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 BLACKSBURG VA
— 540-954 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 ROANOKE VA
— 540-955 7XXX8XXX · 2 holders which blocks → VERIZON VIRGINIA, INC. 9213 BERRYVILLE VA
— 540-958 1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 COVINGTON VA
— 540-959 not yet reported which blocks → VA
— 540-960 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 COVINGTON VA
— 540-961 6XXX which blocks → VERIZON VIRGINIA, INC. 9213 BLACKSBURG VA
— 540-962 not yet reported which blocks → LUMOS TELEPHONE LLC 0226 COVINGTON VA
— 540-965 not yet reported which blocks → LUMOS TELEPHONE LLC 0226 COVINGTON VA
— 540-966 7XXX which blocks → LUMOS TELEPHONE OF BOTETOURT LLC 0249 TROUTVILLE VA
— 540-967 6XXX7XXX8XXX · 3 holders which blocks → VERIZON VIRGINIA, INC. 9213 LOUISA VA
— 540-968 4XXX5XXX8XXX9XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 COVINGTON VA
— 540-969 none assigned yet which blocks → LUMOS TELEPHONE LLC 0226 COVINGTON VA
— 540-972 not yet reported which blocks → VERIZON SOUTH, INC. - VA (CONTEL) 0233 CHANCELLOR VA
— 540-973 0XXX1XXX2XXX3XXX4XXX5XXX7XXX · 3 holders which blocks → TELNYX LLC 073H THE PLAINS VA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/30/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.