NumberResearch Membership · Data 09/22/2026

Recent prefix assignments

354 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/22/2026

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. 39
NEW CINGULAR WIRELESS PCS, LLC - IL 28
ONVOY, LLC - CA 27
NEW CINGULAR WIRELESS PCS, LLC - DC 26
ONVOY, LLC - NJ 20
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
2022-09-26 520-520 0–9 XXXwhole prefix which blocks → ONVOY, LLC - AZ 630E NOGALES AZ
2022-09-26 551-360 0–9 XXXall 10 · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - NJ 118F LEONIA NJ
2022-09-26 561-561 0–9 XXXwhole prefix which blocks → ONVOY, LLC - FL 937C BOYNTONBCH FL
2022-09-26 574-574 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - IN 097D GOSHEN IN
2022-09-26 575-575 0–9 XXXwhole prefix which blocks → ONVOY, LLC - NM 206F ROSWELL NM
2022-09-26 602-878 0–9 XXXwhole prefix which blocks → ONVOY, LLC - AZ 630E PHOENIX AZ
2022-09-26 646-332 0–9 XXXwhole prefix which blocks → ONVOY SPECTRUM, LLC 624H NWYRCYZN01 NY
2022-09-26 646-516 0–9 XXXwhole prefix which blocks → ONVOY, LLC- NY 384C NWYRCYZN01 NY
2022-09-26 646-631 0–9 XXXwhole prefix which blocks → ONVOY, LLC- NY 384C NWYRCYZN01 NY
2022-09-26 650-442 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - CA 981E SSNFRNCSCO CA
2022-09-26 672-272 not yet reported which blocks → Videotron Ltd. 787G Vancouver —
2022-09-26 672-276 not yet reported which blocks → Videotron Ltd. 787G Vancouver —
2022-09-26 672-472 not yet reported which blocks → Videotron Ltd. 787G Vancouver —
2022-09-26 672-667 not yet reported which blocks → Videotron Ltd. 787G Vancouver —
2022-09-26 682-394 0–9 XXXwhole prefix which blocks → BANDWIDTH.COM CLEC, LLC - TX 004F FORT WORTH TX
2022-09-26 708-708 0–9 XXXwhole prefix which blocks → ONVOY, LLC 224C BERWYN IL
2022-09-26 719-719 0–9 XXXwhole prefix which blocks → ONVOY, LLC - CO 026D COLORDOSPG CO
2022-09-26 725-286 0–9 XXXall 10 · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - NV 075F LAS VEGAS NV
2022-09-26 726-229 0–9 XXXall 10 · 2 holders which blocks → VOIP INNOVATIONS, LLC 597F SANANTONIO TX
2022-09-26 727-609 0–9 XXXall 10 · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E TARPON SPG FL
2022-09-26 775-775 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - NV 029F PAHRUMP NV
2022-09-26 802-802 0–9 XXXwhole prefix which blocks → ONVOY, LLC - VT 451F ST JOHNSBY VT
2022-09-26 804-804 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - VA 138E MIDLOTHIAN VA
2022-09-26 808-808 0–9 XXXwhole prefix which blocks → ONVOY, LLC - HI 210H HONOLULU HI
2022-09-26 825-419 not yet reported which blocks → Videotron Ltd. 787G Edmonton —
2022-09-26 825-474 not yet reported which blocks → Videotron Ltd. 787G Edmonton —
2022-09-26 825-488 not yet reported which blocks → Videotron Ltd. 787G Calgary —
2022-09-26 825-747 not yet reported which blocks → Videotron Ltd. 787G Calgary —
2022-09-26 825-785 not yet reported which blocks → Videotron Ltd. 787G Edmonton —
2022-09-26 835-202 1XXX4XXX5XXX9XXX · 2 holders which blocks → D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 HAMBURG PA
2022-09-26 856-215 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WOODBURY NJ
2022-09-26 856-856 0–9 XXXwhole prefix which blocks → ONVOY, LLC - NJ 637C PAULSBORO NJ
2022-09-26 863-334 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E HAINESCITY FL
2022-09-26 907-615 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS 6563 ANCHORAGE AK
2022-09-26 908-908 0–9 XXXwhole prefix which blocks → ONVOY, LLC - NJ 637C LEBANON NJ
2022-09-26 910-961 0–9 XXXall 10 · 5 holders which blocks → ATLANTIC TELECOM MULTIMEDIA CONSOLIDATED, LLC - NC 452G KENANSVL NC
2022-09-26 920-920 0–9 XXXwhole prefix which blocks → ONVOY, LLC - WI 225C NESHKORO WI
2022-09-26 928-491 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - AZ 587F GLOBE AZ
2022-09-26 928-928 0–9 XXXwhole prefix which blocks → ONVOY, LLC - AZ 630E SOMERTON AZ
2022-09-26 941-941 0–9 XXXwhole prefix which blocks → ONVOY, LLC - FL 937C BRADENTON FL
2022-09-26 956-679 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 LAREDO TX
2022-09-26 970-970 0–9 XXXwhole prefix which blocks → ONVOY, LLC - CO 026D GRAND JCT CO
2022-09-23 307-412 0–9 XXXall 10 · 4 holders which blocks → AT&T - LOCAL 7421 CHEYENNE WY
2022-09-23 308-209 9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ARTHUR NE
2022-09-23 308-213 9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DANBURY NE
2022-09-23 308-242 9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BENKELMAN NE
2022-09-23 308-243 9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELSIE NE
2022-09-23 308-259 1XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SILVER CRK NE
2022-09-23 308-328 9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HAIGLER NE
2022-09-23 308-363 9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAUNETA NE

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/22/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.