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
Download CSV ↓
Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2002-01-24 918-869 3XXX4XXX5XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MUSKOGEE OK
2002-01-24 918-914 4XXX5XXX6XXX7XXX8XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BARTLESVL OK
2002-01-24 918-930 1XXX2XXX3XXX4XXX6XXX9XXX · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WESTVILLE OK
2002-01-24 918-931 3XXX4XXX5XXX6XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TAHLEQUAH OK
2002-01-24 918-937 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KETCHUM OK
2002-01-24 979-252 not yet reported which blocks → TEXAS COMMUNICATIONS, INC. 6820 GIDDINGS TX
2002-01-23 308-344 not yet reported which blocks → PINPOINT COMMUNICATIONS, INC. - NE 2309 MCCOOK NE
2002-01-23 312-804 not yet reported which blocks → T-MOBILE USA, INC. 6529 CHICGOZN01 IL
2002-01-23 352-586 0XXX1XXX2XXX3XXX4XXX5XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 CRYSTALRIV FL
2002-01-23 419-512 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 MANSFIELD OH
2002-01-23 507-398 0XXX1XXX2XXX3XXX4XXX · 2 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 ROCHESTER MN
2002-01-23 646-786 9XXX which blocks → PAETEC ITEL, LLC 829J NWYRCYZN01 NY
2002-01-23 773-704 not yet reported which blocks → T-MOBILE USA, INC. 6529 CHICGOZN03 IL
2002-01-23 817-675 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ARLINGTON TX
2002-01-22 224-430 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAUKEGAN IL
2002-01-22 410-940 0–9 XXXall 10 · 4 holders which blocks → PAETEC ITEL, LLC 829J ANNAPOLIS MD
2002-01-22 603-608 1XXX2XXX3XXX4XXX5XXX · 4 holders which blocks → METROPCS, INC. 5562 NORTHWOOD NH
2002-01-22 603-630 4XXX5XXX6XXX7XXX8XXX9XXX which blocks → BELL ATLANTIC MOBILE, INC 6386 LACONIA NH
2002-01-22 603-828 0XXX1XXX2XXX3XXX4XXX5XXX · 2 holders which blocks → BELL ATLANTIC MOBILE, INC 6386 PORTSMOUTH NH
2002-01-22 603-957 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PORTSMOUTH NH
2002-01-22 630-715 2XXX3XXX4XXX5XXX6XXX7XXX8XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ST CHARLES IL
2002-01-22 712-930 not yet reported which blocks → COMMUNITY CABLE TV AGCY O'BRIEN CO. DBA COMM.-IA 3112 SANBORN IA
2002-01-22 765-251 8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MARION IN
2002-01-22 862-222 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 MORRISTOWN NJ
2002-01-22 862-823 none assigned yet which blocks → METROPCS, INC. 5562 PASSAIC NJ
2002-01-22 905-220 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Burlington —
2002-01-22 905-251 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Newmarket —
2002-01-22 905-441 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Oshawa —
2002-01-22 905-599 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Oakville —
2002-01-22 905-960 not yet reported which blocks → Bell Mobility 6574 Newmarket —
2002-01-22 908-572 0XXX7XXX · 2 holders which blocks → BRIGHTSPEED OF NEW JERSEY, INC. 0138 OLDWICK NJ
2002-01-21 224-320 not yet reported which blocks → FIRST COMMUNICATIONS, LLC 460K LAKEZURICH IL
2002-01-21 304-815 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → CITYNET WEST VIRGINIA, LLC - WV 545B NEWMRTNSVL WV
2002-01-21 304-816 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - WV 9944 FAIRMONT WV
2002-01-21 418-210 not yet reported which blocks → Rogers Communications Canada Inc. (Cable) 8377 Quebec —
2002-01-21 419-917 9XXX which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 TOLEDO OH
2002-01-21 517-906 1XXX2XXX4XXX5XXX6XXX8XXX9XXX · 2 holders which blocks → ACD TELECOM, INC. - MI 3535 HOLT MI
2002-01-21 517-978 not yet reported which blocks → ACD TELECOM, INC. - MI 3535 MASON MI
2002-01-21 518-967 not yet reported which blocks → CENTRAL VERMONT COMMUNICATIONS, INC. 1941 PLATTSBG NY
2002-01-21 518-968 not yet reported which blocks → CENTRAL VERMONT COMMUNICATIONS, INC. 1941 SARANAC LK NY
2002-01-21 518-969 not yet reported which blocks → CENTRAL VERMONT COMMUNICATIONS, INC. 1941 GLENSFALLS NY
2002-01-21 540-815 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ROANOKE VA
2002-01-21 716-301 0–9 XXXall 10 · 9 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 LIMESTONE NY
2002-01-21 727-271 not yet reported which blocks → AERIAL COMMUNICATIONS, INC. 6701 NWPTRICHEY FL
2002-01-21 731-261 8XXX which blocks → CITIZENS COMM CO TN DBA FRONTIER COMM OF TN, LLC 4336 MARTIN TN
2002-01-21 774-252 0XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MA 4018 CATAUMET MA
2002-01-21 785-383 not yet reported which blocks → AERIAL COMMUNICATIONS, INC. 6701 TOPEKA KS
2002-01-21 902-230 not yet reported which blocks → Bragg Communications Inc. 4878 Collingwood —
2002-01-21 902-246 not yet reported which blocks → Bragg Communications Inc. 4878 Thorburn —
2002-01-21 902-256 not yet reported which blocks → Bragg Communications Inc. 4878 Mount Uniacke —

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.