NumberResearch Membership · Data 09/27/2026

Recent prefix assignments

341 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 21
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
2021-01-21 930-350 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - IN 097D ODON IN
2021-01-21 938-234 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H HAZELGREEN AL
2021-01-21 938-786 2XXX3XXX4XXX6XXX7XXX · 3 holders which blocks → FRACTEL, LLC 965H ARONEY AL
2021-01-21 941-557 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - FL 937C BRADENTON FL
2021-01-21 954-408 0–9 XXXall 10 · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E HOLLYWOOD FL
2021-01-20 208-984 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - ID 689F LEWISTON ID
2021-01-20 226-769 not yet reported which blocks → IXICA Communications Inc. 812H Windsor —
2021-01-20 364-300 0XXX1XXX2XXX3XXX · 3 holders which blocks → FRACTEL, LLC 965H LORETTO KY
2021-01-20 405-907 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 CHANDLER OK
2021-01-20 423-766 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - TN 525E LIMESTONE TN
2021-01-20 431-208 not yet reported which blocks → Bell Mobility 6574 Winnipeg —
2021-01-20 548-200 not yet reported which blocks → IXICA Communications Inc. 812H Belle River —
2021-01-20 548-300 not yet reported which blocks → IXICA Communications Inc. 812H Stoney Point —
2021-01-20 548-400 not yet reported which blocks → IXICA Communications Inc. 812H Essex —
2021-01-20 548-448 not yet reported which blocks → IXICA Communications Inc. 812H McGregor —
2021-01-20 548-500 not yet reported which blocks → IXICA Communications Inc. 812H Kingsville —
2021-01-20 548-600 not yet reported which blocks → IXICA Communications Inc. 812H Harrow —
2021-01-20 548-666 not yet reported which blocks → IXICA Communications Inc. 812H Tecumseh —
2021-01-20 548-700 not yet reported which blocks → IXICA Communications Inc. 812H Leamington —
2021-01-20 573-650 0–9 XXXall 10 · 7 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 POTOSI MO
2021-01-20 629-249 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - TN 525E SPENCERMIL TN
2021-01-20 712-713 0–9 XXXall 10 · 7 holders which blocks → GREAT PLAINS BROADBAND, INC. - NE 012E COUNCILBLF IA
2021-01-20 808-807 0–9 XXXall 10 · 5 holders which blocks → WIDE VOICE, LLC - HI 411H HONOLULU HI
2021-01-20 859-766 0XXX1XXX3XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → FRACTEL, LLC 965H PERRYVILLE KY
2021-01-20 986-348 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → FRACTEL, LLC 965H BONERSFRRY ID
2021-01-20 986-758 1XXX6XXX7XXX8XXX · 3 holders which blocks → FRACTEL, LLC 965H BOVILL ID
2021-01-19 206-656 0–9 XXXwhole prefix which blocks → ONVOY, LLC - WA 483E SEATTLE WA
2021-01-19 220-500 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H MILLERSPT OH
2021-01-19 252-930 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - NC 638E ROCKYMOUNT NC
2021-01-19 269-263 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 BATTLE CRK MI
2021-01-19 380-465 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H REYNOLDSBG OH
2021-01-19 437-507 not yet reported which blocks → Bell Mobility 6574 Toronto —
2021-01-19 438-247 not yet reported which blocks → Bell Mobility 6574 Montreal —
2021-01-19 440-687 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 ELYRIA OH
2021-01-19 507-782 0–9 XXXall 10 · 3 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 FARIBAULT MN
2021-01-19 517-280 0–9 XXXall 10 · 5 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ADRIAN MI
2021-01-19 540-768 0–9 XXXall 10 · 5 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 SPOTSYLVAN VA
2021-01-19 548-444 not yet reported which blocks → IXICA Communications Inc. 812H Amherstburg —
2021-01-19 564-244 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 LONGVIEW WA
2021-01-19 616-321 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 HOLLAND MI
2021-01-19 680-235 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC- NY 384C ADAMS CTR NY
2021-01-19 734-581 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 MONROE MI
2021-01-19 816-310 0–9 XXXall 10 · 2 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 KEARNEY MO
2021-01-19 825-427 not yet reported which blocks → Bell Mobility 6574 Calgary —
2021-01-19 828-510 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - NC 638E CHEROKEE NC
2021-01-19 845-315 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC- NY 384C HIGHLAND NY
2021-01-19 845-631 0–9 XXXwhole prefix which blocks → PAETEC ITEL, LLC 829J MONTICELLO NY
2021-01-19 863-276 0–9 XXXall 10 · 7 holders which blocks → METROPCS NETWORKS, LLC 899D LAKELAND FL
2021-01-19 872-732 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → FRACTEL, LLC 965H CHICGOZN08 IL
2021-01-19 910-930 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - NC 638E FAYETTEVL NC

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.