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
Download CSV ↓
Recent NPA-NXX prefix assignments
AssignedNPA-NXXAssigneeOCNRate centerState
219-663 INDIANA BELL TEL CO INC 9325 CROWNPOINT IN
219-669 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CROWNPOINT IN
219-670 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HAMMOND IN
219-671 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CROWNPOINT IN
219-677 METROPCS, INC. 5562 GARY IN
219-678 T-MOBILE USA, INC. 6529 GARY IN
219-680 INDIANA BELL TEL CO INC 9325 MERRILLVL IN
219-681 INDIANA BELL TEL CO INC 9325 MERRILLVL IN
219-682 INDIANA BELL TEL CO INC 9325 MERRILLVL IN
219-685 INDIANA BELL TEL CO INC 9325 MERRILLVL IN
219-688 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 GARY IN
219-689 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 GARY IN
219-690 INDIANA BELL TEL CO INC 9325 LOWELL IN
219-695 LEVEL 3 COMMUNICATIONS, LLC - IN 4803 LOWELL IN
219-696 INDIANA BELL TEL CO INC 9325 LOWELL IN
219-697 LEVEL 3 COMMUNICATIONS, LLC - IN 4803 MOROCCO IN
219-700 IN
219-711 MULTIPLE OCN LISTING MULT XXXXXXXXXX IN
219-712 METROPCS, INC. 5562 GARY IN
219-713 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 GARY IN
219-714 LEVEL 3 COMMUNICATIONS, LLC - IN 4803 MERRILLVL IN
219-716 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PORTAGE IN
219-717 SPOK, INC. 6630 MERRILLVL IN
219-718 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MERRILLVL IN
219-730 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 GARY IN
219-733 FRONTIER NORTH, INC.. - IN 0772 WANATAH IN
219-734 FRONTIER NORTH, INC.. - IN 0772 PORTAGE IN
219-736 INDIANA BELL TEL CO INC 9325 MERRILLVL IN
219-738 INDIANA BELL TEL CO INC 9325 MERRILLVL IN
219-741 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 GARY IN
219-742 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 GARY IN
219-743 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 GARY IN
219-746 METROPCS, INC. 5562 GARY IN
219-751 INDIANA BELL TEL CO INC 9325 MERRILLVL IN
219-752 INDIANA BELL TEL CO INC 9325 MERRILLVL IN
219-754 FRONTIER NORTH, INC.. - IN 0772 LA CROSSE IN
219-755 INDIANA BELL TEL CO INC 9325 MERRILLVL IN
219-756 INDIANA BELL TEL CO INC 9325 MERRILLVL IN
219-757 INDIANA BELL TEL CO INC 9325 MERRILLVL IN
219-759 FRONTIER NORTH, INC.. - IN 0772 WHEELER IN
219-762 FRONTIER NORTH, INC.. - IN 0772 PORTAGE IN
219-763 FRONTIER NORTH, INC.. - IN 0772 PORTAGE IN
219-764 FRONTIER NORTH, INC.. - IN 0772 PORTAGE IN
219-765 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CROWNPOINT IN
219-766 FRONTIER NORTH, INC.. - IN 0772 KOUTS IN
219-767 FRONTIER NORTH, INC.. - IN 0772 UNIONMILLS IN
219-769 INDIANA BELL TEL CO INC 9325 MERRILLVL IN
219-770 SPOK, INC. 6630 CROWNPOINT IN
219-771 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PORTAGE IN
219-775 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CROWNPOINT 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.