NumberResearch Membership · Data 09/27/2026

Recent prefix assignments

334 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/27/2026

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 26
Rogers Communications Canada Inc. (Wireless) 23
NEW CINGULAR WIRELESS PCS, LLC - IL 22
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
2005-04-21 702-575 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NV 6458 LAS VEGAS NV
2005-04-21 702-882 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 LAS VEGAS NV
2005-04-21 787-909 0–9 XXXwhole prefix which blocks → SUNCOM DBA T-MOBILE USA 8645 FAJARDO PR
2005-04-21 812-799 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → COMCAST IP PHONE, LLC 318J COLUMBUS IN
2005-04-21 815-992 0–9 XXXall 10 · 5 holders which blocks → T-MOBILE USA, INC. 6529 STREATOR IL
2005-04-21 832-330 0–9 XXXall 10 · 2 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2005-04-21 845-746 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 SPRING VLY NY
2005-04-21 902-313 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Montague —
2005-04-21 951-663 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HEMT HEMT CA
2005-04-21 973-901 0–9 XXXall 10 · 2 holders which blocks → CSC VOICE, LLC 612K NEWARK NJ
2005-04-20 270-702 2XXX3XXX4XXX5XXX7XXX9XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KY 6500 OWENSBORO KY
2005-04-20 573-915 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FARMINGTON MO
2005-04-20 706-761 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COLUMBUS GA
2005-04-19 314-737 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LADUE MO
2005-04-19 403-592 not yet reported which blocks → Bell West Inc. 2933 Calgary —
2005-04-19 417-955 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 STOCKTON MO
2005-04-19 469-554 0–9 XXXall 10 · 4 holders which blocks → FOREMOST TELECOMMUNICATIONS CORPORATION - TX 319D DALLAS TX
2005-04-19 516-665 0–9 XXXall 10 · 5 holders which blocks → CSC VOICE, LLC 612K NASSAUZN06 NY
2005-04-19 573-855 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAYNESVL MO
2005-04-19 612-353 0–9 XXXall 10 · 5 holders which blocks → XO MINNESOTA, LLC 2557 TWINCITIES MN
2005-04-19 702-664 0–9 XXXall 10 · 6 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 JEAN NV
2005-04-19 702-677 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 LAS VEGAS NV
2005-04-19 704-778 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CHARLOTTE NC
2005-04-19 718-879 0–9 XXXall 10 · 2 holders which blocks → PAETEC ITEL, LLC 829J NWYRCYZN05 NY
2005-04-19 773-699 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 CHICGOZN03 IL
2005-04-19 787-702 0–9 XXXwhole prefix which blocks → SUNCOM DBA T-MOBILE USA 8645 NARANJITO PR
2005-04-19 787-951 0–9 XXXwhole prefix which blocks → SUNCOM DBA T-MOBILE USA 8645 MAYAGUEZ PR
2005-04-19 845-901 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 KINGSTON NY
2005-04-18 217-552 0–9 XXXall 10 · 2 holders which blocks → AT&T ENTERPRISES, LLC 516C CHAMPAURBN IL
2005-04-18 217-572 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 3 holders which blocks → AT&T ENTERPRISES, LLC 516C SPRINGFLD IL
2005-04-18 321-558 0–9 XXXall 10 · 6 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 ORLANDO FL
2005-04-18 504-570 0–9 XXXall 10 · 4 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 NEWORLEANS LA
2005-04-18 504-872 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → PAETEC ITEL, LLC 829J NEWORLEANS LA
2005-04-18 620-253 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KS 6532 DODGE CITY KS
2005-04-18 713-855 0–9 XXXall 10 · 2 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2005-04-18 732-354 0–9 XXXall 10 · 4 holders which blocks → COMCAST IP PHONE, LLC 318J NEWBRNSWCK NJ
2005-04-18 814-405 0XXX1XXX8XXX9XXX · 3 holders which blocks → SCHUYLKILL MOBILE FONE, INC. 6739 ALTOONA PA
2005-04-18 815-847 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → AT&T ENTERPRISES, LLC 516C ROCKFORD IL
2005-04-18 904-627 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 JACKSONVL FL
2005-04-18 904-718 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 JACKSONVL FL
2005-04-18 941-564 0–9 XXXall 10 · 5 holders which blocks → PAETEC ITEL, LLC 829J NORTH PORT FL
2005-04-18 956-588 0–9 XXXall 10 · 3 holders which blocks → FOREMOST TELECOMMUNICATIONS CORPORATION - TX 319D PHARR TX
2005-04-15 308-414 0–9 XXXall 10 · 4 holders which blocks → UNITED STATES CELLULAR - NE 6263 IMPERIAL NE
2005-04-15 402-604 0XXX1XXX3XXX4XXX5XXX6XXX7XXX · 3 holders which blocks → N.E. COLORADO CELLULAR, INC. 6874 AURORA NE
2005-04-15 780-932 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Edmonton —
2005-04-15 813-425 0–9 XXXall 10 · 3 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 TAMPACEN FL
2005-04-15 828-559 0–9 XXXall 10 · 6 holders which blocks → CHARTER IP ENABLED SERVICES, LLC 792K MARION NC
2005-04-15 902-241 not yet reported which blocks → Bragg Communications Inc. 4878 North Sydney —
2005-04-15 902-255 not yet reported which blocks → Bragg Communications Inc. 4878 East Bay —
2005-04-15 902-269 not yet reported which blocks → Bragg Communications Inc. 4878 Boularderie —

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/27/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.