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
2002-02-21 909-910 not yet reported which blocks → T-MOBILE USA, INC. 6529 S BERNDINO CA
2002-02-21 918-864 3XXX4XXX5XXX7XXX8XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PRYOR OK
2002-02-21 918-916 3XXX4XXX5XXX8XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MCALESTER OK
2002-02-21 919-940 not yet reported which blocks → COMSCAPE TELECOMMUNICATIONS, INC. 6925 RALEIGH NC
2002-02-21 937-412 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - OH 4863 FAIRBORN OH
2002-02-21 937-502 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - OH 4863 XENIA OH
2002-02-21 949-350 not yet reported which blocks → T-MOBILE USA, INC. 6529 RNCHOVIEJO CA
2002-02-21 979-256 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SEALY TX
2002-02-20 224-569 0XXX1XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → ILLINOIS BELL TEL CO 9329 HUNTLEY IL
2002-02-20 231-421 0–9 XXXall 10 · 5 holders which blocks → CHARTER IP ENABLED SERVICES, LLC 792K TRAVERSECY MI
2002-02-20 609-813 0XXX1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → VERIZON NEW JERSEY, INC. 9206 PLEASANTVL NJ
2002-02-20 661-347 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SNCA SGCC CA
2002-02-20 661-349 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - CA 8826 PLDL PLDL CA
2002-02-20 810-515 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 FLINT MI
2002-02-20 856-324 1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → COMCAST IP PHONE, LLC 318J MERCHANTVL NJ
2002-02-20 856-344 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → COMCAST IP PHONE, LLC 318J LAUREL SPG NJ
2002-02-19 203-400 5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 TRUMBULL CT
2002-02-19 256-469 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → CENTURYLINK COMMUNICATIONS LLC - AL 7451 HUNTSVILLE AL
2002-02-19 269-409 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MI 6120 BUCHANAN MI
2002-02-19 269-609 not yet reported which blocks → TELNET WORLDWIDE, INC. 817J UNION MI
2002-02-19 269-865 not yet reported which blocks → TELNET WORLDWIDE, INC. 817J STURGIS MI
2002-02-19 302-290 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WILMINGTON DE
2002-02-19 418-290 not yet reported which blocks → TELUS Mobility 8303 Chicoutimi —
2002-02-19 418-719 not yet reported which blocks → TELUS Mobility 8303 Alma —
2002-02-19 418-720 not yet reported which blocks → TELUS Mobility 8303 Alma —
2002-02-19 519-328 not yet reported which blocks → TELUS Mobility 8303 Sarnia —
2002-02-19 519-387 not yet reported which blocks → TELUS Mobility 8303 Owen Sound —
2002-02-19 575-616 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 7 holders which blocks → BANDWIDTH.COM CLEC, LLC - NM 123F ARTESIA NM
2002-02-19 613-662 not yet reported which blocks → TELUS Mobility 8303 Cornwall —
2002-02-19 616-557 0–9 XXXall 10 · 9 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SAND LAKE MI
2002-02-19 705-606 not yet reported which blocks → TELUS Mobility 8303 Collingwood —
2002-02-19 705-607 not yet reported which blocks → TELUS Mobility 8303 Collingwood —
2002-02-19 740-231 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - OH 4863 DUFFY OH
2002-02-19 740-239 0–9 XXXall 10 · 7 holders which blocks → BANDWIDTH.COM CLEC, LLC - OH 001F WSNGTNCTHS OH
2002-02-19 740-956 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → PAETEC ITEL, LLC 829J LONDON OH
2002-02-19 774-240 1XXX2XXX3XXX4XXX5XXX7XXX8XXX · 2 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 BROCKTON MA
2002-02-19 774-254 6XXX7XXX8XXX9XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 ATTLEBORO MA
2002-02-19 774-255 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FALMOUTH MA
2002-02-19 774-526 1XXX2XXX3XXX4XXX5XXX7XXX8XXX which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 FALL RIVER MA
2002-02-19 819-699 not yet reported which blocks → TELUS Mobility 8303 Trois-Rivieres —
2002-02-19 819-816 not yet reported which blocks → TELUS Mobility 8303 Drummondville —
2002-02-19 828-371 9XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 FRANKLIN NC
2002-02-19 859-242 4XXX5XXX6XXX7XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KY 6500 WILLIAMSTN KY
2002-02-19 860-867 0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 3 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - CT 6624 NEW LONDON CT
2002-02-19 978-906 0–9 XXXall 10 · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FITCHBURG MA
2002-02-18 613-206 not yet reported which blocks → TELUS Mobility 8303 Smiths Falls —
2002-02-18 613-207 not yet reported which blocks → TELUS Mobility 8303 Smiths Falls —
2002-02-18 613-306 not yet reported which blocks → TELUS Mobility 8303 Hawkesbury —
2002-02-18 613-307 not yet reported which blocks → TELUS Mobility 8303 Hawkesbury —
2002-02-18 705-455 not yet reported which blocks → Bell Canada 8051 Haliburton —

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.