NumberResearch Membership · Data 09/26/2026

Recent prefix assignments

341 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 26
Rogers Communications Canada Inc. (Wireless) 23
NEW CINGULAR WIRELESS PCS, LLC - IL 22
ONVOY, LLC - CA 21
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
— 318-807 5XXX8XXX which blocks → CENTURYLINK COMMUNICATIONS LLC - LA 2896 MONROE LA
— 318-809 0XXX1XXX3XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - LA 749E GRAMBLING LA
— 318-811 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX LA
— 318-812 4XXX8XXX which blocks → CENTURYLINK COMMUNICATIONS LLC - LA 2896 MONROE LA
— 318-813 none assigned yet which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 SHREVEPORT LA
— 318-814 8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J BASTROP LA
— 318-820 1XXX which blocks → ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 SHREVEPORT LA
— 318-823 not yet reported which blocks → NORTHEAST LOUISIANA TEL. CO., INC. 0435 BONITA LA
— 318-827 1XXX3XXX4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 GEORGETOWN LA
— 318-832 none assigned yet which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 COTTON VLY LA
— 318-834 6XXX7XXX8XXX · 2 holders which blocks → ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 SHREVEPORT LA
— 318-838 1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 ST LANDRY LA
— 318-840 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C SHREVEPORT LA
— 318-841 not yet reported which blocks → CENTURYLINK COMMUNICATIONS LLC - LA 2896 SHREVEPORT LA
— 318-843 1XXX3XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 GIBSLAND LA
— 318-846 8XXX which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 SHONGALOO LA
— 318-847 8XXX which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 SAREPTA LA
— 318-848 0XXX4XXX5XXX7XXX · 3 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 SHREVEPORT LA
— 318-854 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - LA 749E ALEXANDRIA LA
— 318-858 4XXX7XXX8XXX9XXX · 3 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 GRAND CANE LA
— 318-861 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 SHREVEPORT LA
— 318-862 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 SHREVEPORT LA
— 318-864 0XXX3XXX which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 SHREVEPORT LA
— 318-865 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 SHREVEPORT LA
— 318-866 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 SHREVEPORT LA
— 318-868 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 SHREVEPORT LA
— 318-869 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 SHREVEPORT LA
— 318-871 0XXX8XXX which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 MANSFIELD LA
— 318-872 7XXX which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 MANSFIELD LA
— 318-874 not yet reported which blocks → NORTHEAST LOUISIANA TEL. CO., INC. 0435 COLLINSTON LA
— 318-875 not yet reported which blocks → CAMPTI-PLEASANT HILL TEL. CO. 0426 CRESTON LA
— 318-876 not yet reported which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 COTTONPORT LA
— 318-878 1XXX4XXX7XXX · 3 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 DELHI LA
— 318-891 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - LA 3232 GREENWOOD LA
— 318-894 0XXX1XXX · 2 holders which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 RINGGOLD LA
— 318-899 6XXX9XXX · 2 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 DRY PRONG LA
— 318-908 not yet reported which blocks → ONVOY, LLC - LA 749E SHREVEPORT LA
— 318-911 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX LA
— 318-922 1XXX which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 PLAUCHEVL LA
— 318-925 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 KEITHVILLE LA
— 318-926 1XXX3XXX4XXX6XXX7XXX8XXX · 5 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 EPPS LA
— 318-927 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 HOMER LA
— 318-929 6XXX8XXX · 2 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 BLANCHARD LA
— 318-932 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 COUSHATTA LA
— 318-933 1XXX2XXX3XXX4XXX6XXX7XXX9XXX · 4 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 KEATCHIE LA
— 318-938 2XXX3XXX6XXX8XXX · 4 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 GREENWOOD LA
— 318-939 1XXX which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 BIG CANE LA
— 318-941 7XXX8XXX · 2 holders which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 SIMMESPORT LA
— 318-949 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 HAUGHTON LA
— 318-950 not yet reported which blocks → LA

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.