NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

0 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, all time — NPA 337
BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 143
NEW CINGULAR WIRELESS PCS, LLC - GA 98
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 53
PAETEC ITEL, LLC 34
BRIGHTSPEED OF LOUISIANA, LLC 33
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
2026-03-27 337-758 6XXX which blocks → OPENTACT INC. 824J LAFAYETTE LA
2026-03-18 337-620 0–9 XXXwhole prefix which blocks → TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C LAFAYETTE LA
2026-02-25 337-903 0XXX which blocks → WAVENATION, LLC 700J LAFAYETTE LA
2025-01-24 337-822 1XXX which blocks → NUSO, LLC 478J LAFAYETTE LA
2024-12-30 337-712 0XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SULPHUR LA
2024-07-03 337-619 0XXX1XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - LA 749E YOUNGSVL LA
2024-06-21 337-818 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - LA 749E NEW IBERIA LA
2024-04-18 337-318 0XXX1XXX2XXX3XXX7XXX8XXX9XXX which blocks → ONVOY, LLC - LA 749E LEESVILLE LA
2024-04-05 337-690 1XXX8XXX · 2 holders which blocks → IP HORIZON LLC 515J LEONVILLE LA
2024-04-05 337-691 1XXX which blocks → IP HORIZON LLC 515J PORT BARRE LA
2024-03-29 337-757 0XXX1XXX8XXX9XXX · 3 holders which blocks → IP HORIZON LLC 515J CARENCRO LA
2024-03-14 337-341 0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 5 holders which blocks → CEBRIDGE TELECOM LA, LLC D/B/A SUDDENLINK COMM LA 260H STMARTINVL LA
2023-12-15 337-651 0–9 XXXall 10 · 5 holders which blocks → LAFAYETTE CITY-PARISH CONSOLIDATED GOVERNMENT - LA 9002 CROWLEY LA
2023-12-15 337-946 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → COMMIO, LLC 939H CENTERVL LA
2023-10-05 337-618 0XXX1XXX2XXX7XXX8XXX9XXX · 2 holders which blocks → VOICESTREAM GSM I, LLC 150C BREAUX BDG LA
2023-09-07 337-610 0XXX1XXX2XXX3XXX4XXX which blocks → COMMIO, LLC 939H IOWA LA
2023-09-07 337-613 0XXX1XXX2XXX3XXX4XXX8XXX · 2 holders which blocks → COMMIO, LLC 939H MELVILLE LA
2023-09-07 337-615 0XXX1XXX2XXX3XXX4XXX which blocks → COMMIO, LLC 939H RAGLEY LA
2023-08-22 337-597 0XXX1XXX2XXX3XXX4XXX5XXX · 2 holders which blocks → COMMIO, LLC 939H BASILE LA
2023-08-22 337-601 0XXX2XXX · 2 holders which blocks → ONVOY, LLC - LA 749E HENDERSON LA
2023-08-22 337-604 0XXX2XXX · 2 holders which blocks → ONVOY, LLC - LA 749E CECELIA LA
2023-08-11 337-576 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY, LLC - LA 749E EUNICE LA
2023-08-11 337-590 0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - LA 749E ABBEVILLE LA
2023-07-20 337-575 0XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 VINTON LA
2023-06-30 337-730 0–9 XXXall 10 · 5 holders which blocks → ONVOY SPECTRUM, LLC 624H OPELOUSAS LA
2023-06-30 337-771 0XXX1XXX7XXX · 3 holders which blocks → ONVOY SPECTRUM, LLC 624H PARKS LA
2023-06-27 337-773 0XXX1XXX2XXX3XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY SPECTRUM, LLC 624H BROUSSARD LA
2023-05-31 337-645 0XXX4XXX · 2 holders which blocks → BOOST SUBSCRIBERCO L.L.C. 490J JOHNSOBYOU LA
2023-04-07 337-634 0–9 XXXall 10 · 6 holders which blocks → BOOST SUBSCRIBERCO L.L.C. 490J LK CHARLES LA
2023-03-10 337-259 0–9 XXXall 10 · 4 holders which blocks → HD CARRIER LLC 321J LAFAYETTE LA
2022-11-18 337-617 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - LA 749E MERRYVILLE LA
2022-11-18 337-637 0XXX1XXX3XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY, LLC - LA 749E RAYNE LA
2022-09-27 337-337 0–9 XXXwhole prefix which blocks → ONVOY, LLC - LA 749E LEESVILLE LA
2022-09-07 337-203 0XXX1XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LACASSINE LA
2022-06-29 337-799 0–9 XXXall 10 · 2 holders which blocks → TERRA NOVA TELECOM INC. 145J LAFAYETTE LA
2022-04-19 337-770 0–9 XXXall 10 · 5 holders which blocks → COMMIO, LLC 939H LAFAYETTE LA
2022-03-30 337-568 0XXX1XXX2XXX3XXX4XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J LAFAYETTE LA
2022-02-24 337-574 0–9 XXXall 10 · 3 holders which blocks → VOICESTREAM GSM I, LLC 150C DE RIDDER LA
2022-02-24 337-748 0XXX1XXX3XXX7XXX8XXX9XXX · 6 holders which blocks → TON80 COMMUNICATIONS, LLC 516J WASHINGTON LA
2022-02-22 337-742 0XXX1XXX5XXX · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J BALDWIN LA
2022-02-22 337-768 1XXX7XXX · 2 holders which blocks → TON80 COMMUNICATIONS, LLC 516J ROANOKE LA
2022-02-22 337-848 0XXX1XXX2XXX4XXX5XXX8XXX · 6 holders which blocks → TON80 COMMUNICATIONS, LLC 516J SUNSET LA
2022-02-07 337-627 0–9 XXXall 10 · 6 holders which blocks → TON80 COMMUNICATIONS, LLC 516J BREAUX BDG LA
2022-01-31 337-832 0–9 XXXall 10 · 8 holders which blocks → TON80 COMMUNICATIONS, LLC 516J STMARTINVL LA
2022-01-28 337-722 0–9 XXXall 10 · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J LK CHARLES LA
2022-01-27 337-586 0XXX1XXX2XXX3XXX7XXX8XXX · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J WEEKS IS LA
2022-01-27 337-674 0–9 XXXall 10 · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J SULPHUR LA
2022-01-27 337-727 1XXX4XXX5XXX6XXX7XXX · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J PINEPRAIRI LA
2022-01-27 337-746 0XXX1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J CARLYSS LA
2022-01-27 337-767 0–9 XXXall 10 · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J CROWLEY LA

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.