NumberResearch Membership · Data 09/22/2026

Recent prefix assignments

354 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/22/2026

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. 39
NEW CINGULAR WIRELESS PCS, LLC - IL 28
ONVOY, LLC - CA 27
NEW CINGULAR WIRELESS PCS, LLC - DC 26
ONVOY, LLC - NJ 20
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
— 715-924 5XXX6XXX8XXX9XXX · 3 holders which blocks → BRIGHTSPEED OF WESTERN WISCONSIN, LLC 0922 CHETEK WI
— 715-925 not yet reported which blocks → CTC TELCOM, INC. 7998 CHETEK WI
— 715-926 8XXX which blocks → FRONTIER COMMUNICATIONS OF WISCONSIN LLC 0912 MONDOVI WI
— 715-927 not yet reported which blocks → NEW CELL DBA CELLCOM 6692 CRIVITZ WI
— 715-929 none assigned yet which blocks → NEW CELL DBA CELLCOM 6692 PEMBINE WI
— 715-934 6XXX9XXX · 2 holders which blocks → NORVADO, INC. 8615 HAYWARD WI
— 715-935 0XXX1XXX2XXX3XXX5XXX8XXX9XXX · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PLAINFIELD WI
— 715-938 not yet reported which blocks → NEW CELL DBA CELLCOM 6692 MARINETTE WI
— 715-939 0XXX1XXX2XXX3XXX4XXX6XXX7XXX9XXX · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPOONER WI
— 715-940 1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - WI 007F SHAWANO WI
— 715-942 2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J WAUPACA WI
— 715-943 not yet reported which blocks → INDIANHEAD TEL. CO. 0936 EXELAND WI
— 715-945 not yet reported which blocks → INDIANHEAD TEL. CO. 0936 RADISSON WI
— 715-946 not yet reported which blocks → NELSON COMMUNICATIONS COOPERATIVE 0918 GILMANTON WI
— 715-948 not yet reported which blocks → AMERY TELECOM, INC. 0842 CLAYTON WI
— 715-949 not yet reported which blocks → CHIBARDUN TEL. COOP., INC. 0861 RIDGELAND WI
— 715-950 not yet reported which blocks → WI
— 715-958 not yet reported which blocks → EAU CLAIRE WI
— 715-959 not yet reported which blocks → EAU CLAIRE WI
— 715-962 0XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → TELEPHONE USA OF WISCONSIN, LLC DBA CENTURYLINK 1155 COLFAX WI
— 715-963 0XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → BRIGHTSPEED OF CENTRAL WISCONSIN, LLC 1159 HIXTON WI
— 715-964 0XXX3XXX4XXX5XXX6XXX9XXX · 5 holders which blocks → BRIGHTSPEED OF CENTRAL WISCONSIN, LLC 1159 ALMACENTER WI
— 715-967 not yet reported which blocks → CITIZENS TEL. COOP., INC. 0863 LONG LAKE WI
— 715-975 0XXX6XXX9XXX · 2 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 EAU CLAIRE WI
— 715-976 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX WI
— 715-979 0–9 XXXall 10 · 7 holders which blocks → ONVOY, LLC - WI 225C ASHLAND WI
— 715-983 not yet reported which blocks → TRI-COUNTY TEL. COOP., INC. 0960 PIGEON FLS WI
— 715-984 not yet reported which blocks → TRI-COUNTY TEL. COOP., INC. 0960 NORTHFIELD WI
— 715-985 6XXX which blocks → TRI-COUNTY TEL. COOP., INC. 0960 INDEPNDNCE WI
— 715-986 1XXX5XXX7XXX8XXX · 4 holders which blocks → BRIGHTSPEED OF WESTERN WISCONSIN, LLC 0970 TURTLELAKE WI
— 715-988 0XXX1XXX2XXX4XXX · 4 holders which blocks → NEW CELL DBA CELLCOM 6692 NIAGARA WI
— 715-995 0XXX1XXX4XXX5XXX7XXX · 5 holders which blocks → TWILIO INTERNATIONAL, INC. 506J AUGUSTA WI
— 716-200 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 BUFFALO NY
— 716-203 0–9 XXXall 10 · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 DUNKIRK NY
— 716-204 3XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J WILLIAMSVL NY
— 716-205 3XXX6XXX7XXX8XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J NIAGARAFLS NY
— 716-206 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J LANCASTER NY
— 716-207 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BUFFALO NY
— 716-208 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BUFFALO NY
— 716-209 1XXX2XXX3XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 ORCHARD PK NY
— 716-210 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 PENDLETON NY
— 716-211 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NY
— 716-213 3XXX6XXX7XXX8XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J TONAWANDA NY
— 716-215 0XXX1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NIAGARAFLS NY
— 716-228 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 BUFFALO NY
— 716-232 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 6 holders which blocks → DFT LOCAL SERVICE CORP. DBA DFT SELECT ONE-NY 5367 WESTFIELD NY
— 716-236 1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → VERIZON NEW YORK, INC. 9104 NIAGARAFLS NY
— 716-246 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 7 holders which blocks → ONVOY, LLC- NY 384C LEWISTON NY
— 716-250 8XXX9XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 WILLIAMSVL NY
— 716-252 not yet reported which blocks → CHAUTAUQUA & ERIE TEL. CORP. 0078 SO RIPLEY NY

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/22/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.