NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

355 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026

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. 38
ONVOY, LLC - CA 31
NEW CINGULAR WIRELESS PCS, LLC - IL 28
NEW CINGULAR WIRELESS PCS, LLC - DC 26
ONVOY, LLC - NJ 18
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
2002-07-15 902-331 not yet reported which blocks → Aliant Telecom (NS) 8089 New Glasgow —
2002-07-15 902-371 not yet reported which blocks → Aliant Telecom (NS) 8089 Sydney —
2002-07-15 902-940 not yet reported which blocks → Aliant Telecom (PEI) 8087 Charlottetown —
2002-07-15 902-954 not yet reported which blocks → Aliant Telecom (PEI) 8087 Summerside —
2002-07-15 902-957 not yet reported which blocks → TELUS Mobility 8303 Truro —
2002-07-15 908-892 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 6391 CLINTON NJ
2002-07-15 919-398 0–9 XXXall 10 · 3 holders which blocks → PAETEC ITEL, LLC 829J RALEIGH NC
2002-07-12 254-679 0XXX2XXX3XXX4XXX5XXX7XXX8XXX · 4 holders which blocks → METROPCS, INC. 5562 GATESVILLE TX
2002-07-12 270-217 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KY 6500 PADUCAH KY
2002-07-12 301-857 0–9 XXXall 10 · 4 holders which blocks → CORE COMMUNICATIONS, INC.- MD 2593 CLEAR SPG MD
2002-07-12 352-359 4XXX5XXX6XXX7XXX8XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 GAINESVL FL
2002-07-12 412-223 0–9 XXXall 10 · 8 holders which blocks → CORE COMMUNICATIONS, INC. - PA 3806 PTTSBGZON2 PA
2002-07-12 432-994 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → SOUTHWESTERN BELL 9533 MIDLAND TX
2002-07-12 502-542 4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KY 6500 GEORGETOWN KY
2002-07-12 514-783 not yet reported which blocks → Videotron Ltd. 8306 Pointe-Claire —
2002-07-12 514-784 not yet reported which blocks → Videotron Ltd. 8306 Ste-Genevieve —
2002-07-12 601-349 1XXX4XXX5XXX8XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J ELLISVILLE MS
2002-07-12 601-563 3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → TELEPAK NETWORKS, INC. - MS 5278 WESSON MS
2002-07-12 601-575 not yet reported which blocks → CELLULAR SOUTH, INC. 6581 PHILA MS
2002-07-12 601-726 not yet reported which blocks → TEC OF JACKSON, INC. - MS 3704 HATTIESBG MS
2002-07-12 606-369 7XXX8XXX9XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KY 6500 ASHLAND KY
2002-07-12 786-466 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 MIAMI FL
2002-07-12 806-589 0–9 XXXall 10 · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 LUBBOCK TX
2002-07-12 812-953 0–9 XXXall 10 · 7 holders which blocks → FRONTIER NORTH, INC. - IN 0779 NO VERNON IN
2002-07-12 860-593 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HARTFORD CT
2002-07-12 863-370 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 LAKELAND FL
2002-07-12 941-773 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BRADENTON FL
2002-07-11 405-596 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKLA CITY OK
2002-07-11 406-346 0XXX which blocks → RANGE TELEPHONE COOPERATIVE, INC. - MT 8140 FORSYTH MT
2002-07-11 440-278 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → T-MOBILE USA, INC. 6529 WICKLIFFE OH
2002-07-11 440-318 0XXX1XXX2XXX3XXX6XXX7XXX8XXX · 2 holders which blocks → T-MOBILE USA, INC. 6529 CHAGRINFLS OH
2002-07-11 440-390 1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 4 holders which blocks → T-MOBILE USA, INC. 6529 NOROYALTON OH
2002-07-11 440-454 4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → T-MOBILE USA, INC. 6529 OLMSTEDFLS OH
2002-07-11 440-532 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → T-MOBILE USA, INC. 6529 BEREA OH
2002-07-11 440-533 1XXX3XXX7XXX8XXX · 4 holders which blocks → T-MOBILE USA, INC. 6529 GATESMILLS OH
2002-07-11 614-886 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLUMBUS OH
2002-07-11 716-707 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 ARCADE NY
2002-07-11 810-580 0XXX2XXX3XXX4XXX5XXX6XXX7XXX · 4 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ALGONAC MI
2002-07-11 856-655 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 CAMDEN NJ
2002-07-11 910-466 1XXX3XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NC 3235 WEST END NC
2002-07-10 217-775 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → T-MOBILE USA, INC. 6529 DECATUR IL
2002-07-10 317-412 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 FRANKLIN IN
2002-07-10 518-844 0XXX8XXX which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 GLOVERSVL NY
2002-07-10 607-371 0XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NORWICH NY
2002-07-10 757-761 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NRFOLKZON2 VA
2002-07-10 804-248 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 RICHMOND VA
2002-07-09 229-272 1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SYLVESTER GA
2002-07-09 267-776 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → CORE COMMUNICATIONS, INC. - PA 3806 PHLDLPHZN2 PA
2002-07-09 281-258 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → SOUTHWESTERN BELL 9533 HSTNSUBURB TX
2002-07-09 339-221 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 MEDFORD MA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.