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
219-776 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CROWNPOINT IN
219-778 FRONTIER NORTH, INC.. - IN 0772 ROLLNGPRRI IN
219-779 BANDWIDTH.COM CLEC, LLC - IN 105F CROWNPOINT IN
219-781 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 GARY IN
219-783 INDIANA BELL TEL CO INC 9325 MERRILLVL IN
219-785 FRONTIER NORTH, INC.. - IN 0772 WESTVILLE IN
219-787 FRONTIER NORTH, INC.. - IN 0772 PORTAGE IN
219-789 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 GARY IN
219-790 INDIANA BELL TEL CO INC 9325 XXXXXXXXXX IN
219-791 INDIANA BELL TEL CO INC 9325 MERRILLVL IN
219-792 AMERICAN MESSAGING SERVICES, LLC 9748 GARY IN
219-793 INDIANA BELL TEL CO INC 9325 MERRILLVL IN
219-794 INDIANA BELL TEL CO INC 9325 MERRILLVL IN
219-795 INDIANA BELL TEL CO INC 9325 MERRILLVL IN
219-796 INDIANA BELL TEL CO INC 9325 MERRILLVL IN
219-797 FRONTIER NORTH, INC.. - IN 0772 HANNA IN
219-798 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 GARY IN
219-811 MULTIPLE OCN LISTING MULT XXXXXXXXXX IN
219-814 FBN INDIANA, INC. - IN 4117 MICHIGANCY IN
219-819 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RENSSELAER IN
219-828 BRIGHTSPEED OF INDIANA, LLC 0832 SAN PIERRE IN
219-832 ONVOY, LLC - IN 097D MICHIGANCY IN
219-836 INDIANA BELL TEL CO INC 9325 HIGHLAND IN
219-838 INDIANA BELL TEL CO INC 9325 HIGHLAND IN
219-841 FRONTIER NORTH, INC.. - IN 0772 PORTAGE IN
219-843 BRIGHTSPEED OF INDIANA, LLC 0832 MEDARYVL IN
219-844 INDIANA BELL TEL CO INC 9325 HAMMOND IN
219-845 INDIANA BELL TEL CO INC 9325 HAMMOND IN
219-851 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 LA PORTE IN
219-852 INDIANA BELL TEL CO INC 9325 HAMMOND IN
219-853 INDIANA BELL TEL CO INC 9325 HAMMOND IN
219-861 INDIANA BELL TEL CO INC 9325 MICHIGANCY IN
219-863 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 RENSSELAER IN
219-864 INDIANA BELL TEL CO INC 9325 DYER IN
219-865 INDIANA BELL TEL CO INC 9325 DYER IN
219-866 BRIGHTSPEED OF INDIANA, LLC 0832 RENSSELAER IN
219-869 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 RENSSELAER IN
219-871 INDIANA BELL TEL CO INC 9325 MICHIGANCY IN
219-872 INDIANA BELL TEL CO INC 9325 MICHIGANCY IN
219-873 INDIANA BELL TEL CO INC 9325 MICHIGANCY IN
219-874 INDIANA BELL TEL CO INC 9325 MICHIGANCY IN
219-877 INDIANA BELL TEL CO INC 9325 MICHIGANCY IN
219-878 INDIANA BELL TEL CO INC 9325 MICHIGANCY IN
219-879 INDIANA BELL TEL CO INC 9325 MICHIGANCY IN
219-880 INDIANA BELL TEL CO INC 9325 GARY IN
219-881 INDIANA BELL TEL CO INC 9325 GARY IN
219-882 INDIANA BELL TEL CO INC 9325 GARY IN
219-883 INDIANA BELL TEL CO INC 9325 GARY IN
219-884 INDIANA BELL TEL CO INC 9325 GARY IN
219-885 INDIANA BELL TEL CO INC 9325 GARY 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.