NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

2 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026

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 — NPA 986
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID 2
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
2020-10-02 986-899 8XXX9XXX · 2 holders which blocks → FRACTEL, LLC 965H ELBA ID
2020-10-02 986-922 2XXX6XXX9XXX · 3 holders which blocks → FRACTEL, LLC 965H ALMO ID
2020-10-02 986-977 0XXX1XXX2XXX3XXX7XXX8XXX · 2 holders which blocks → FRACTEL, LLC 965H BOISERIVER ID
2020-09-14 986-786 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - ID 689F PARMA ID
2020-07-13 986-336 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H FAIRFIELD ID
2020-07-13 986-356 0XXX1XXX4XXX5XXX6XXX7XXX9XXX · 5 holders which blocks → FRACTEL, LLC 965H SPRINGFLD ID
2020-07-13 986-386 0–9 XXXall 10 · 8 holders which blocks → FRACTEL, LLC 965H WILDER ID
2020-07-13 986-529 0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 4 holders which blocks → FRACTEL, LLC 965H RICHFIELD ID
2020-07-13 986-766 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → FRACTEL, LLC 965H RIGGINS ID
2020-07-13 986-946 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H HOPE ID
2020-06-24 986-400 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H CASCADE ID
2020-06-24 986-444 0XXX1XXX2XXX3XXX4XXX5XXX8XXX · 6 holders which blocks → FRACTEL, LLC 965H SWEET ID
2020-06-24 986-800 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H IDAHOFALLS ID
2020-06-19 986-234 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H PIERCE ID
2020-06-19 986-300 0–9 XXXall 10 · 2 holders which blocks → FRACTEL, LLC 965H BAYVIEW ID
2020-06-19 986-345 0XXX1XXX3XXX4XXX5XXX6XXX8XXX · 4 holders which blocks → FRACTEL, LLC 965H SPIRITLAKE ID
2020-06-19 986-500 0XXX1XXX2XXX5XXX6XXX7XXX · 4 holders which blocks → FRACTEL, LLC 965H DEARY ID
2020-06-19 986-900 0XXX9XXX which blocks → FRACTEL, LLC 965H POWELL ID
2020-04-20 986-686 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - ID 689F DONNELLY ID
2020-04-20 986-886 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → ONVOY, LLC - ID 689F NEWMEADOWS ID
2020-03-09 986-689 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - ID 689F GRANGEVL ID
2019-09-05 986-600 0–9 XXXall 10 · 7 holders which blocks → FRACTEL, LLC 965H MOSCOW ID
2019-06-24 986-793 0–9 XXXwhole prefix which blocks → LEVEL 3 COMMUNICATIONS, LLC - ID 7558 BOISE ID
2019-06-03 986-333 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H POTLATCH ID
2019-05-09 986-867 0–9 XXXall 10 · 3 holders which blocks → COMMIO, LLC 939H BOISE ID
2019-03-15 986-222 0–9 XXXall 10 · 7 holders which blocks → FRACTEL, LLC 965H RIGBY ID
2019-03-08 986-201 0–9 XXXall 10 · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - ID 808G CALDWELL ID
2019-01-30 986-666 0–9 XXXall 10 · 8 holders which blocks → FRACTEL, LLC 965H NAMPA ID
2019-01-30 986-777 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → FRACTEL, LLC 965H EMMETT ID
2019-01-30 986-999 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H BOISE ID
2019-01-15 986-888 0–9 XXXall 10 · 6 holders which blocks → TERRA NOVA TELECOM INC. 145J BOISE ID
2018-06-25 986-497 0–9 XXXall 10 · 8 holders which blocks → MILLENNIUM NETWORKS, LLC - ID 022G IDAHOFALLS ID
2018-03-23 986-224 0–9 XXXall 10 · 3 holders which blocks → LEVEL 3 TELECOM OF IDAHO, LLC - ID 7511 BOISE ID
2018-03-16 986-200 0–9 XXXall 10 · 3 holders which blocks → VONAGE AMERICA LLC 197D BOISE ID
— 986-202 0–9 XXXall 10 · 3 holders which blocks → TELNYX LLC 073H LEADORE ID
— 986-211 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX ID
— 986-228 0XXX1XXX2XXX3XXX8XXX · 4 holders which blocks → ONVOY, LLC - ID 689F ROCK CREEK ID
— 986-235 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - ID 689F SANDPOINT ID
— 986-311 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX ID
— 986-411 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX ID
— 986-511 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX ID
— 986-555 not yet reported which blocks → MULTIPLE OCN LISTING MULT DIR ASST ID
— 986-611 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX ID
— 986-700 not yet reported which blocks → ID
— 986-711 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX ID
— 986-811 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX ID
— 986-911 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX ID
— 986-950 not yet reported which blocks → ID
— 986-958 not yet reported which blocks → ID
— 986-959 not yet reported which blocks → ID

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.