NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

338 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026

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. 38
NEW CINGULAR WIRELESS PCS, LLC - IL 28
ONVOY, LLC - CA 26
NEW CINGULAR WIRELESS PCS, LLC - DC 26
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-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2001-10-17 603-988 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 PORTSMOUTH NH
2001-10-17 605-234 not yet reported which blocks → MIDSTATE TELECOM, INC. - SD 9001 CHAMBERLAN SD
2001-10-17 708-420 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LA GRANGE IL
2001-10-17 724-790 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 7 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7315 BESSEMER PA
2001-10-17 773-610 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICGOZN03 IL
2001-10-17 778-889 not yet reported which blocks → Fido Solutions Inc. 5643 New Westminster —
2001-10-17 778-891 not yet reported which blocks → Fido Solutions Inc. 5643 New Westminster —
2001-10-17 780-716 not yet reported which blocks → Fido Solutions Inc. 5643 Edmonton —
2001-10-17 848-333 not yet reported which blocks → OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 TOMS RIVER NJ
2001-10-17 848-459 not yet reported which blocks → OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 FREEHOLD NJ
2001-10-17 856-430 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 6391 WOODBURY NJ
2001-10-17 862-452 not yet reported which blocks → OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 NEWARK NJ
2001-10-17 862-571 4XXX5XXX which blocks → OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 PASSAIC NJ
2001-10-17 901-314 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MEMPHIS TN
2001-10-17 901-315 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MEMPHIS TN
2001-10-17 989-202 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MI 6120 HOUGHTONLK MI
2001-10-17 989-315 0–9 XXXall 10 · 7 holders which blocks → METROPCS, INC. 5562 BAD AXE MI
2001-10-17 989-424 0–9 XXXall 10 · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLARE MI
2001-10-16 202-444 not yet reported which blocks → PAETEC ITEL, LLC 829J WSHNGTNZN1 DC
2001-10-16 217-771 1XXX2XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IL 6115 GIBSONCITY IL
2001-10-16 217-806 1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IL 6115 DANVILLE IL
2001-10-16 309-712 0–9 XXXall 10 · 2 holders which blocks → UNITED STATES CELLULAR - IL 6265 PEORIA IL
2001-10-16 434-409 0XXX2XXX4XXX5XXX7XXX · 2 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 CHARLOTSVL VA
2001-10-16 504-906 none assigned yet which blocks → VOICESTREAM GSM I, LLC 150C KENNER LA
2001-10-16 540-810 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 HARRISONBG VA
2001-10-16 704-879 0–9 XXXall 10 · 7 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K LOWELL NC
2001-10-16 765-433 0XXX2XXX3XXX4XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IN 4803 FARMLAND IN
2001-10-16 786-278 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 PERRINE FL
2001-10-16 804-475 none assigned yet which blocks → METROPCS, INC. 5562 RICHMOND VA
2001-10-16 912-220 0XXX3XXX which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 SAVANNAH GA
2001-10-16 971-217 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → METROPCS, INC. 5562 BEAVERTON OR
2001-10-16 971-236 0–9 XXXall 10 · 3 holders which blocks → ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7172 CLACKAMAS OR
2001-10-15 330-986 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 YOUNGSTOWN OH
2001-10-15 347-439 2XXX3XXX4XXX5XXX6XXX7XXX8XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN06 NY
2001-10-13 419-905 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LIMA OH
2001-10-13 419-909 0–9 XXXall 10 · 6 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K ELIDA OH
2001-10-13 419-912 0–9 XXXall 10 · 6 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K ATTICA OH
2001-10-13 419-915 4XXX5XXX · 2 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K COLUMBSGRV OH
2001-10-12 214-625 9XXX which blocks → METROPCS, INC. 5562 GRANDPRARI TX
2001-10-12 269-852 not yet reported which blocks → TELNET WORLDWIDE, INC. 817J SOUTHHAVEN MI
2001-10-12 317-451 1XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 DANVILLE IN
2001-10-12 317-565 1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 NOBLESVL IN
2001-10-12 347-546 none assigned yet which blocks → METROPCS, INC. 5562 NWYRCYZN06 NY
2001-10-12 419-780 0–9 XXXall 10 · 7 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K WAYNESFLD OH
2001-10-12 419-860 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 LIMA OH
2001-10-12 432-978 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX which blocks → T-MOBILE USA, INC. 6529 TERMINAL TX
2001-10-12 505-804 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 ALBUQURQUE NM
2001-10-12 505-907 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 ALBUQURQUE NM
2001-10-12 507-215 4XXX8XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 PIPESTONE MN
2001-10-12 507-430 9XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 REDWOODFLS MN

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.