NumberResearch Membership · Data 09/26/2026

Recent prefix assignments

360 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/26/2026

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
ONVOY, LLC - CA 26
NEW CINGULAR WIRELESS PCS, LLC - IL 26
Rogers Communications Canada Inc. (Wireless) 23
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
Download CSV ↓
Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2021-07-16 209-849 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 MODESTO CA
2021-07-16 209-875 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 MERCED CA
2021-07-16 213-564 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 LSAN DA 09 CA
2021-07-16 254-567 0XXX1XXX8XXX · 3 holders which blocks → FRACTEL, LLC 965H IREDELL TX
2021-07-16 272-264 0XXX1XXX2XXX3XXX7XXX8XXX9XXX · 5 holders which blocks → COMCAST IP PHONE, LLC 318J MILLVILLE PA
2021-07-16 279-766 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H MEADOWVIEW CA
2021-07-16 346-922 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H BROOKSHIRE TX
2021-07-16 346-933 0–9 XXXall 10 · 3 holders which blocks → FRACTEL, LLC 965H RICHMNRNBG TX
2021-07-16 351-224 1XXX2XXX4XXX5XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - MA 892D BARRE MA
2021-07-16 435-732 0XXX1XXX2XXX4XXX5XXX8XXX9XXX · 4 holders which blocks → FRACTEL, LLC 965H TREMONTON UT
2021-07-16 458-345 0XXX1XXX2XXX4XXX6XXX8XXX · 6 holders which blocks → FRACTEL, LLC 965H ENTERPRISE OR
2021-07-16 475-287 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - CT 6624 NEW HAVEN CT
2021-07-16 562-538 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 ALAMITOS CA
2021-07-16 605-808 0XXX1XXX2XXX3XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - SD 162G REDFIELD SD
2021-07-16 640-206 0–9 XXXall 10 · 5 holders which blocks → COMCAST IP PHONE, LLC 318J VINCENTOWN NJ
2021-07-16 659-235 0–9 XXXall 10 · 8 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - AL 8271 BESSEMER AL
2021-07-16 662-496 0XXX2XXX3XXX4XXX8XXX9XXX · 3 holders which blocks → FRONTIER COMMUNICATIONS OF MISSISSIPPI, INC. 0460 RIENZI MS
2021-07-16 669-587 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H SAN MARTIN CA
2021-07-16 681-219 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HNTNGTNZN1 WV
2021-07-16 689-242 0–9 XXXwhole prefix which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 ORLANDO FL
2021-07-16 689-243 0–9 XXXwhole prefix which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 ORLANDO FL
2021-07-16 725-253 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 MESQUITE NV
2021-07-16 747-566 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H GLENDALE CA
2021-07-16 754-271 0–9 XXXwhole prefix which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 FTLAUDERDL FL
2021-07-16 754-272 0–9 XXXwhole prefix which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 FTLAUDERDL FL
2021-07-16 762-345 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H BLAIRSVL GA
2021-07-16 774-492 0XXX2XXX3XXX4XXX5XXX7XXX9XXX · 4 holders which blocks → ONVOY, LLC - MA 892D NATICK MA
2021-07-16 786-793 0–9 XXXwhole prefix which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 MIAMI FL
2021-07-16 786-794 0–9 XXXwhole prefix which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 MIAMI FL
2021-07-16 802-261 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VT 6390 BARRE VT
2021-07-16 802-301 0XXX1XXX3XXX · 3 holders which blocks → CONSOLIDATED COMMUNICATIONS OF VERMONT COMPANY 5115 MORRISVL VT
2021-07-16 807-392 not yet reported which blocks → Bell Mobility 6574 Kenora —
2021-07-16 820-206 0–9 XXXall 10 · 6 holders which blocks → T-MOBILE USA, INC. 6529 PASOROBLES CA
2021-07-16 840-699 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H ONTARIO CA
2021-07-16 840-788 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H FONTANA CA
2021-07-16 856-509 0–9 XXXall 10 · 4 holders which blocks → COMCAST IP PHONE, LLC 318J HADDONFLD NJ
2021-07-16 857-384 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - MA 892D BRIGHTON MA
2021-07-16 867-414 not yet reported which blocks → Bell Mobility 6574 Yellowknife —
2021-07-16 904-691 0–9 XXXwhole prefix which blocks → LEVEL 3 COMMUNICATIONS, LLC - FL 4802 ST JOHNS FL
2021-07-16 913-899 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H KANSASCITY KS
2021-07-16 937-814 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - OH 464C DAYTON OH
2021-07-16 971-402 0XXX1XXX2XXX3XXX4XXX8XXX9XXX · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - OR 076F AMITY OR
2021-07-15 236-546 not yet reported which blocks → TELUS 8086 South Kamloops —
2021-07-15 308-461 9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NO LONG IS NE
2021-07-15 331-272 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC 224C ST CHARLES IL
2021-07-15 470-854 0–9 XXXwhole prefix which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 ATLANTA NE GA
2021-07-15 470-981 0–9 XXXwhole prefix which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 ATLANTA NE GA
2021-07-15 501-522 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC - AR 348F BENTON AR
2021-07-15 548-845 not yet reported which blocks → Brooke Telecom Co-operative Ltd. 692G Wyoming —
2021-07-15 608-703 0XXX1XXX3XXX6XXX8XXX9XXX · 6 holders which blocks → ONVOY, LLC - WI 225C NEW GLARUS WI

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.