NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

371 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

Which carriers received which NPA-NXX prefixes, and where. Assignments are initial assignments from NANPA records — because of number portability, the current serving carrier of individual numbers may differ. For finer-grained activity, see the thousands-block view above.

Most active assignees, last 30 days
8X8, INC. 38
ONVOY, LLC - CA 31
NEW CINGULAR WIRELESS PCS, LLC - IL 31
NEW CINGULAR WIRELESS PCS, LLC - DC 30
ONVOY, LLC - NJ 18
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-NXXAssigneeOCNRate centerState
2023-11-01 341-240 T-MOBILE USA, INC. 6529 HAYWARD CA
2023-11-01 559-881 COMCAST PHONE OF CALIFORNIA, LLC 394L FRESNO CA
2023-11-01 728-222 WIDE VOICE, LLC - FL 704G DELRAY BCH FL
2023-11-01 813-772 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 PLANT CITY FL
2023-11-01 840-246 T-MOBILE USA, INC. 6529 ETIWANDA CA
2023-11-01 912-765 LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ELLABELLE GA
2023-10-31 210-726 T-MOBILE USA, INC. 6529 SANANTONIO TX
2023-10-31 210-786 T-MOBILE USA, INC. 6529 SANANTONIO TX
2023-10-31 217-217 ONVOY, LLC 224C LINCOLN IL
2023-10-31 223-341 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LANDISVL PA
2023-10-31 334-914 POWERTEL BIRMINGHAM LICENSES, INC. 7475 EUFAULA AL
2023-10-31 346-737 AERIAL COMMUNICATIONS, INC. 6701 BAYTOWN TX
2023-10-31 464-231 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FOREST IL
2023-10-31 464-232 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OAK FOR SO IL
2023-10-31 531-349 T-MOBILE USA, INC. 6529 SOSIOUX CY NE
2023-10-31 645-222 WIDE VOICE, LLC - FL 704G MIAMI FL
2023-10-31 645-999 WIDE VOICE, LLC - FL 704G PERRINE FL
2023-10-31 662-924 POWERTEL MEMPHIS LICENSES, INC. 7474 CLEVELAND MS
2023-10-31 681-493 LEVEL 3 COMMUNICATIONS, LLC - WV 9944 PETERSBURG WV
2023-10-31 709-802 Iristel Inc. 346J St. John's —
2023-10-31 709-803 Iristel Inc. 346J St. John's —
2023-10-31 725-316 EON TELECOM, INC. 839J LAS VEGAS NV
2023-10-31 728-200 OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2023-10-31 728-201 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 WPALMBEACH FL
2023-10-31 817-940 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2023-10-31 907-218 OPTIMERA INC. 158J AKUTAN AK
2023-10-31 943-225 EON TELECOM, INC. 839J ATLANTA NW GA
2023-10-31 954-386 TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 FTLAUDERDL FL
2023-10-30 229-650 NEW CINGULAR WIRELESS PCS, LLC - GA 6214 VALDOSTA GA
2023-10-30 316-234 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WICHITA KS
2023-10-30 343-554 Iristel Inc. 346J Ottawa-Hull —
2023-10-30 343-556 Iristel Inc. 346J Ottawa-Hull —
2023-10-30 431-701 Iristel Inc. 346J Winnipeg —
2023-10-30 431-702 Iristel Inc. 346J Winnipeg —
2023-10-30 505-597 COMCAST IP PHONE, LLC 318J ALBUQURQUE NM
2023-10-30 616-376 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2023-10-30 779-383 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MOMENCE IL
2023-10-30 825-482 Iristel Inc. 346J Edmonton —
2023-10-30 825-483 Iristel Inc. 346J Edmonton —
2023-10-30 858-979 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7147 LA JOLLA CA
2023-10-30 858-980 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7147 LA JOLLA CA
2023-10-30 858-981 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7147 LA JOLLA CA
2023-10-30 858-982 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7147 LA JOLLA CA
2023-10-30 858-983 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7147 LA JOLLA CA
2023-10-30 858-984 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7147 LA JOLLA CA
2023-10-30 858-985 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7147 LA JOLLA CA
2023-10-30 858-986 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7147 LA JOLLA CA
2023-10-30 858-989 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7147 LA JOLLA CA
2023-10-30 912-763 NEW CINGULAR WIRELESS PCS, LLC - GA 6214 STATESBORO GA
2023-10-27 260-339 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DECATUR IN

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.