NumberResearch Membership · Data 09/25/2026

Recent prefix assignments

358 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/25/2026

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 31
ONVOY, LLC - CA 27
NEW CINGULAR WIRELESS PCS, LLC - IL 27
ONVOY, LLC - NJ 15
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
2022-01-20 727-354 0–9 XXXall 10 · 2 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 NWPTRICHEY FL
2022-01-20 762-328 0–9 XXXall 10 · 5 holders which blocks → PAETEC ITEL, LLC 829J AUGUSTA GA
2022-01-20 763-346 0–9 XXXwhole prefix which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2022-01-20 806-876 8XXX which blocks → TWILIO INTERNATIONAL, INC. 506J AMARILLO TX
2022-01-20 825-745 not yet reported which blocks → Iristel Inc. 154E Medicine Hat —
2022-01-20 828-596 0XXX1XXX2XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - NC 8389 BLACK MT NC
2022-01-20 863-320 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E WINTER HVN FL
2022-01-20 863-329 0–9 XXXall 10 · 6 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 LAKELAND FL
2022-01-20 864-536 0XXX7XXX9XXX · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - SC 077F ANTIOCH SC
2022-01-20 865-626 0XXX1XXX2XXX6XXX · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J CHESTNUTHI TN
2022-01-20 865-822 0XXX1XXX2XXX7XXX8XXX9XXX · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J OLIVER SPG TN
2022-01-20 865-962 0XXX1XXX2XXX3XXX4XXX8XXX9XXX · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J CLAXTON TN
2022-01-20 873-306 not yet reported which blocks → Iristel Inc. 154E Victoriaville —
2022-01-20 878-732 0–9 XXXall 10 · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J PTGSBNZN19 PA
2022-01-20 901-660 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - TN 124F LAGRANGE TN
2022-01-20 904-792 0–9 XXXall 10 · 3 holders which blocks → POWERTEL JACKSONVILLE LICENSES, INC. 7472 ST JOHNS FL
2022-01-20 904-884 0–9 XXXall 10 · 2 holders which blocks → TERRA NOVA TELECOM, INC. - FL 382G MACCLENNY FL
2022-01-20 910-931 0XXX1XXX2XXX4XXX7XXX8XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 SOUTHPORT NC
2022-01-20 930-257 0XXX2XXX · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - IN 105F CLEARSPRNG IN
2022-01-20 941-288 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 PTCHARLOTT FL
2022-01-20 971-423 0XXX2XXX3XXX · 3 holders which blocks → TWILIO INTERNATIONAL, INC. 506J YAMHILL OR
2022-01-20 984-746 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J CREEDMOOR NC
2022-01-20 985-403 0–9 XXXall 10 · 4 holders which blocks → VOICESTREAM GSM I, LLC 150C HAMMOND LA
2022-01-19 236-315 not yet reported which blocks → Iristel Inc. 154E Vancouver —
2022-01-19 251-520 0–9 XXXall 10 · 3 holders which blocks → COMMIO, LLC 939H MOBILE AL
2022-01-19 334-990 0–9 XXXall 10 · 2 holders which blocks → COMMIO, LLC 939H MONTGOMERY AL
2022-01-19 346-545 0–9 XXXall 10 · 4 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 RICHMNRNBG TX
2022-01-19 365-640 not yet reported which blocks → Beanfield Technologies Inc. 575G Queensville —
2022-01-19 365-641 not yet reported which blocks → Beanfield Technologies Inc. 575G Schomberg —
2022-01-19 365-642 not yet reported which blocks → Beanfield Technologies Inc. 575G Stouffville —
2022-01-19 458-902 8XXX9XXX · 2 holders which blocks → ONVOY SPECTRUM, LLC 624H COVE OR
2022-01-19 463-265 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FRANKLIN IN
2022-01-19 479-486 0XXX1XXX2XXX9XXX · 4 holders which blocks → BOOST SUBSCRIBERCO L.L.C. 490J PEA RIDGE AR
2022-01-19 548-918 not yet reported which blocks → Iristel Inc. 154E Leamington —
2022-01-19 581-893 not yet reported which blocks → Iristel Inc. 154E Chandler —
2022-01-19 612-484 0–9 XXXall 10 · 4 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2022-01-19 619-984 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2022-01-19 639-704 not yet reported which blocks → Iristel Inc. 154E Saskatoon —
2022-01-19 657-652 0–9 XXXall 10 · 2 holders which blocks → TON80 COMMUNICATIONS, LLC 516J ANAHEIM CA
2022-01-19 680-239 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MASSENA NY
2022-01-19 682-373 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 ARLINGTON TX
2022-01-19 682-374 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 ARLINGTON TX
2022-01-19 682-376 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 ARLINGTON TX
2022-01-19 682-377 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 ARLINGTON TX
2022-01-19 709-301 not yet reported which blocks → Iristel Inc. 154E Bonavista —
2022-01-19 765-784 0XXX2XXX3XXX · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J W LEBANON IN
2022-01-19 765-843 0XXX1XXX2XXX3XXX6XXX7XXX · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J WAYNETOWN IN
2022-01-19 765-974 2XXX4XXX7XXX9XXX · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J WALDRON IN
2022-01-19 774-506 0–9 XXXall 10 · 2 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BROCKTON MA
2022-01-19 806-814 0XXX1XXX7XXX8XXX9XXX which blocks → PEERLESS NETWORK OF TEXAS, LLC - TX 177F AMARILLO TX

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/25/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.