NumberResearch Membership · Data 09/27/2026

Recent prefix assignments

334 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 19
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
2020-11-11 612-457 0–9 XXXall 10 · 3 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2020-11-11 669-369 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - CA 649C SNJS WEST CA
2020-11-11 669-649 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - CA 649C SUNNYVALE CA
2020-11-11 672-982 not yet reported which blocks → TELUS Mobility 8301 100 Mile House —
2020-11-11 816-831 0–9 XXXall 10 · 5 holders which blocks → AVID COMMUNICATIONS, LLC - MO 718D KANSASCITY MO
2020-11-11 830-273 0–9 XXXall 10 · 3 holders which blocks → STPCS JOINT VENTURE, LLC 4290 DEL RIO TX
2020-11-11 858-727 0–9 XXXall 10 · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J SNDG SNDG CA
2020-11-11 873-318 not yet reported which blocks → Fibernetics Corporation 464D St-Guillaume —
2020-11-11 873-319 not yet reported which blocks → Fibernetics Corporation 464D Wickham —
2020-11-11 925-515 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - CA 649C CONCORD CA
2020-11-11 929-559 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN07 NY
2020-11-10 367-996 not yet reported which blocks → TELUS Mobility 8303 Alma —
2020-11-10 551-312 0–9 XXXwhole prefix which blocks → OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 BAYONNE NJ
2020-11-10 571-568 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - VA 138E MANASSAS VA
2020-11-10 672-983 not yet reported which blocks → TELUS Mobility 8301 Prince George —
2020-11-10 681-362 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HNTNGTNZN1 WV
2020-11-10 689-224 0–9 XXXall 10 · 3 holders which blocks → COMCAST IP PHONE, LLC 318J KISSIMMEE FL
2020-11-10 719-934 0–9 XXXall 10 · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J PUEBLO CO
2020-11-10 754-256 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 HOLLYWOOD FL
2020-11-10 757-765 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - VA 138E NWPTNWSZN2 VA
2020-11-10 860-472 0–9 XXXwhole prefix which blocks → PAETEC ITEL, LLC 829J HARTFORD CT
2020-11-10 873-316 not yet reported which blocks → Fibernetics Corporation 464D L'Avenir —
2020-11-10 873-317 not yet reported which blocks → Fibernetics Corporation 464D St-Germain-de-Grantham —
2020-11-10 984-401 0–9 XXXall 10 · 4 holders which blocks → SOUTH CAROLINA NET, INC. - NC 511C WAKEFOREST NC
2020-11-09 231-283 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLCV - MI 543C MUSKEGON MI
2020-11-09 307-303 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - WY 081F GREENRIVER WY
2020-11-09 352-673 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 DUNNELLON FL
2020-11-09 380-224 0–9 XXXall 10 · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - OH 001F REYNOLDSBG OH
2020-11-09 435-534 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - UT 871E LOGAN UT
2020-11-09 442-699 2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → FRACTEL, LLC 965H TRONA CA
2020-11-09 442-833 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → FRACTEL, LLC 965H JOSHUATREE CA
2020-11-09 442-955 0–9 XXXall 10 · 3 holders which blocks → FRACTEL, LLC 965H VICTORVL CA
2020-11-09 470-694 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 ATLANTA NW GA
2020-11-09 470-708 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 ATLANTA NE GA
2020-11-09 470-727 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 ATLANTA GA
2020-11-09 602-922 0–9 XXXwhole prefix which blocks → ONVOY, LLC - AZ 630E PHOENIX AZ
2020-11-09 609-996 0–9 XXXall 10 · 3 holders which blocks → HD CARRIER LLC 321J ATLNTIC CY NJ
2020-11-09 623-303 0–9 XXXwhole prefix which blocks → ONVOY, LLC - AZ 630E PHOENIX AZ
2020-11-09 661-955 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H ARVIN CA
2020-11-09 669-348 0–9 XXXall 10 · 7 holders which blocks → FRACTEL, LLC 965H SUNNYVALE CA
2020-11-09 720-792 0–9 XXXwhole prefix which blocks → ONVOY, LLC - CO 026D DENVER CO
2020-11-09 734-496 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ANN ARBOR MI
2020-11-09 762-262 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COLUMBUS GA
2020-11-09 769-255 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - MS 992E COLUMBIA MS
2020-11-09 786-744 0–9 XXXall 10 · 4 holders which blocks → HD CARRIER LLC 321J MIAMI FL
2020-11-09 825-815 not yet reported which blocks → Fibernetics Corporation 464D Carstairs —
2020-11-09 825-816 not yet reported which blocks → Fibernetics Corporation 464D Crossfield —
2020-11-09 825-817 not yet reported which blocks → Fibernetics Corporation 464D Langdon —
2020-11-09 825-860 not yet reported which blocks → Fibernetics Corporation 464D Edmonton —
2020-11-09 858-667 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H SNDG LVTA CA

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.