NumberResearch Membership · Data 09/29/2026

Recent prefix assignments

347 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/29/2026

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 28
Rogers Communications Canada Inc. (Wireless) 23
NEW CINGULAR WIRELESS PCS, LLC - IL 23
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
2019-05-21 914-786 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H WSCHSTZN02 NY
2019-05-21 929-616 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H NWYRCYZN09 NY
2019-05-21 929-667 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H NWYRCYZN10 NY
2019-05-21 929-758 0–9 XXXall 10 · 7 holders which blocks → FRACTEL, LLC 965H NWYRCYZN13 NY
2019-05-21 929-816 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H NWYRCYZN12 NY
2019-05-21 929-842 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H NWYRCYZN07 NY
2019-05-21 954-807 0–9 XXXall 10 · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 FTLAUDERDL FL
2019-05-21 985-336 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → FRACTEL, LLC 965H DULAC LA
2019-05-20 206-591 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 BAINBDG IS WA
2019-05-20 213-766 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H LSAN DA 07 CA
2019-05-20 240-677 0–9 XXXwhole prefix which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WSHNGTNZN5 MD
2019-05-20 337-877 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H VINTON LA
2019-05-20 412-643 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - PA 547E PTTSBGZON1 PA
2019-05-20 424-758 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H CMTN CMTN CA
2019-05-20 504-677 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H KENNER LA
2019-05-20 504-732 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H JESUITBEND LA
2019-05-20 504-788 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H LAFITTE LA
2019-05-20 619-860 0–9 XXXall 10 · 6 holders which blocks → ONVOY SPECTRUM, LLC 624H SNDG SNDG CA
2019-05-20 628-465 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → FRACTEL, LLC 965H SAUSALITO CA
2019-05-20 628-529 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H SNFC JUNPR CA
2019-05-20 650-677 0–9 XXXall 10 · 7 holders which blocks → FRACTEL, LLC 965H SSNFRNCSCO CA
2019-05-20 720-647 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - CO 026D DENVER CO
2019-05-20 727-758 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H NWPTRICHEY FL
2019-05-20 743-203 0–9 XXXwhole prefix which blocks → BANDWIDTH.COM CLEC, LLC - NC 998E SUMMERFLD NC
2019-05-20 772-758 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H VERO BEACH FL
2019-05-20 786-758 0–9 XXXall 10 · 3 holders which blocks → FRACTEL, LLC 965H HOMESTEAD FL
2019-05-20 786-977 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H PERRINE FL
2019-05-20 813-755 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H TAMPANTH FL
2019-05-20 813-822 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H TAMPAEST FL
2019-05-20 863-356 0–9 XXXall 10 · 3 holders which blocks → FRACTEL, LLC 965H WINTER HVN FL
2019-05-20 941-529 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H SARASOTA FL
2019-05-20 949-866 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H SADLBK VLY CA
2019-05-20 951-499 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - CA 649C BANNING CA
2019-05-17 217-859 0–9 XXXall 10 · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 DECATUR IL
2019-05-17 239-310 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - FL 937C FORT MYERS FL
2019-05-17 239-350 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - FL 937C NAPLES FL
2019-05-17 240-673 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - MD 071F WSHNGTNZN2 MD
2019-05-17 332-210 0–9 XXXall 10 · 4 holders which blocks → CSC WIRELESS, LLC 425J NWYRCYZN01 NY
2019-05-17 352-656 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - FL 937C TRILACOCHE FL
2019-05-17 352-706 0–9 XXXwhole prefix which blocks → ONVOY, LLC - FL 937C LADY LAKE FL
2019-05-17 364-800 1XXX4XXX5XXX8XXX · 2 holders which blocks → FRACTEL, LLC 965H OWENSBORO KY
2019-05-17 386-272 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - FL 937C LAKEBUTLER FL
2019-05-17 386-327 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - FL 937C DELAND FL
2019-05-17 412-541 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - PA 002F PTGSBNZN18 PA
2019-05-17 434-230 0XXX1XXX2XXX3XXX4XXX5XXX6XXX9XXX · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - VA 079F SOUTH HILL VA
2019-05-17 561-473 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - FL 937C WPALMBEACH FL
2019-05-17 561-560 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - FL 937C BOCA RATON FL
2019-05-17 567-722 0–9 XXXwhole prefix which blocks → ONVOY, LLC - OH 464C TOLEDO OH
2019-05-17 602-675 0–9 XXXall 10 · 2 holders which blocks → COMCAST IP PHONE, LLC 318J PHOENIX AZ
2019-05-17 689-204 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - FL 937C KISSIMMEE FL

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/29/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.