NumberResearchRecent prefix assignments
371 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026
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
New assignments by month
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Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 217-774 | ILLINOIS CONSOLIDATED TEL. CO. | 1037 | SHELBYVL | IL | |
| 217-776 | FRONTIER COMMUNICATIONS OF THE CAROLINAS, INC - IL | 1000 | COLLISON | IL | |
| 217-778 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHAMPAURBN | IL | |
| 217-779 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | QUINCY | IL | |
| 217-781 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GIBSONCITY | IL | |
| 217-782 | ILLINOIS BELL TEL CO | 9329 | SPRINGFLD | IL | |
| 217-783 | ILLINOIS CONSOLIDATED TEL. CO. | 1037 | COWDEN | IL | |
| 217-784 | ILLINOIS BELL TEL CO | 9329 | GIBSONCITY | IL | |
| 217-785 | ILLINOIS BELL TEL CO | 9329 | SPRINGFLD | IL | |
| 217-786 | ILLINOIS BELL TEL CO | 9329 | SPRINGFLD | IL | |
| 217-787 | ILLINOIS BELL TEL CO | 9329 | SPRINGFLD | IL | |
| 217-788 | ILLINOIS BELL TEL CO | 9329 | SPRINGFLD | IL | |
| 217-789 | ILLINOIS BELL TEL CO | 9329 | SPRINGFLD | IL | |
| 217-791 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DECATUR | IL | |
| 217-792 | FRONTIER COMMUNICATIONS OF MT. PULASKI, INC. | 1061 | MT PULASKI | IL | |
| 217-793 | ILLINOIS BELL TEL CO | 9329 | SPRINGFLD | IL | |
| 217-794 | FRONTIER NORTH, INC. - IL | 1015 | MAROA | IL | |
| 217-795 | FRONTIER NORTH, INC. - IL | 1015 | ARGENTA | IL | |
| 217-796 | FRONTIER COMMUNICATIONS OF MT. PULASKI, INC. | 1061 | CHESTNUT | IL | |
| 217-797 | FRONTIER COMMUNICATIONS OF LAKESIDE, INC. | 1011 | KIRKSVILLE | IL | |
| 217-802 | VONAGE AMERICA LLC | 197D | TAYLORVL | IL | |
| 217-805 | STRATUS NETWORKS | 495J | PALMYRA | IL | |
| 217-809 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | DECATUR | IL | |
| 217-811 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | IL | |
| 217-814 | ILLINOIS BELL TEL CO | 9329 | SPRINGFLD | IL | |
| 217-820 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | TAYLORVL | IL | |
| 217-821 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | EFFINGHAM | IL | |
| 217-822 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MARSHALL | IL | |
| 217-823 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | TAYLORVL | IL | |
| 217-824 | ILLINOIS CONSOLIDATED TEL. CO. | 1037 | TAYLORVL | IL | |
| 217-825 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | TAYLORVL | IL | |
| 217-826 | FRONTIER NORTH, INC. - IL | 1015 | MARSHALL | IL | |
| 217-827 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | TAYLORVL | IL | |
| 217-829 | FRONTIER NORTH, INC. - IL | 1015 | PEARL | IL | |
| 217-832 | FRONTIER NORTH, INC. - IL | 1015 | VILLAGROVE | IL | |
| 217-833 | FRONTIER NORTH, INC. - IL | 1015 | GRIGGSVL | IL | |
| 217-834 | FRONTIER NORTH, INC. - IL | 1015 | BROADLANDS | IL | |
| 217-835 | CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL | 1183 | BENLD | IL | |
| 217-836 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | SPRINGFLD | IL | |
| 217-837 | FRONTIER NORTH, INC. - IL | 1015 | NEWMAN | IL | |
| 217-839 | CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL | 1183 | GILLESPIE | IL | |
| 217-840 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | CHAMPAURBN | IL | |
| 217-842 | CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL | 1183 | BOWEN | IL | |
| 217-843 | COMMIO, LLC | 939H | SPRINGFLD | IL | |
| 217-844 | ILLINOIS CONSOLIDATED TEL. CO. | 1037 | SIGEL | IL | |
| 217-845 | CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL | 1183 | ELVASTON | IL | |
| 217-846 | FRONTIER COMMUNICATIONS OF THE CAROLINAS, INC - IL | 1000 | FOOSLAND | IL | |
| 217-847 | CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL | 1183 | HAMILTON | IL | |
| 217-848 | T-MOBILE USA, INC. | 6529 | DECATUR | IL | |
| 217-849 | FRONTIER COMMUNICATIONS OF THE CAROLINAS, INC - IL | 1000 | TOLEDO | IL |
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.