NumberResearchRecent prefix assignments
380 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 2026-04
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
Sep 2026
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Dec 2025
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Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 972-895 | ONVOY, LLC - TX | 903C | BRISTOL | TX | |
| 972-896 | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX | |
| 972-897 | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX | |
| 972-898 | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX | |
| 972-899 | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | 7670 | LEWISVILLE | TX | |
| 972-901 | SOUTHWESTERN BELL | 9533 | GRANDPRARI | TX | |
| 972-902 | SPOK, INC. | 6630 | GRANDPRARI | TX | |
| 972-906 | SOUTHWESTERN BELL TELEPHONE COMPANY - TX | 7726 | LEWISVILLE | TX | |
| 972-907 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 972-908 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ALLEN | TX | |
| 972-909 | SPOK, INC. | 6630 | GRANDPRARI | TX | |
| 972-910 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 972-911 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | TX | |
| 972-912 | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | 7670 | ALLEN | TX | |
| 972-913 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 972-914 | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | NEVADA | TX | |
| 972-915 | FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | 4344 | IRVING | TX | |
| 972-916 | FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | 4344 | IRVING | TX | |
| 972-917 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 972-918 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 972-919 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 972-920 | ONVOY, LLC - TX | 903C | DE SOTO | TX | |
| 972-921 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WAXAHACHIE | TX | |
| 972-923 | SOUTHWESTERN BELL | 9533 | WAXAHACHIE | TX | |
| 972-924 | SOUTHWESTERN BELL | 9533 | ANNA | TX | |
| 972-925 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DALLAS | TX | |
| 972-926 | FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | 4344 | PLANO | TX | |
| 972-927 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 972-929 | FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | 4344 | IRVING | TX | |
| 972-930 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 972-931 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 972-932 | BRIGHTSPEED OF EASTERN TEXAS, INC. | 2084 | KAUFMAN | TX | |
| 972-933 | SOUTHWESTERN BELL | 9533 | GRANDPRARI | TX | |
| 972-934 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 972-935 | SOUTHWESTERN BELL | 9533 | WAXAHACHIE | TX | |
| 972-937 | SOUTHWESTERN BELL | 9533 | WAXAHACHIE | TX | |
| 972-938 | SOUTHWESTERN BELL | 9533 | WAXAHACHIE | TX | |
| 972-939 | FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | 4344 | CARROLLTON | TX | |
| 972-941 | FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | 4344 | PLANO | TX | |
| 972-943 | SOUTHWESTERN BELL TELEPHONE COMPANY - TX | 7726 | PLANO | TX | |
| 972-946 | SOUTHWESTERN BELL | 9533 | GRANDPRARI | TX | |
| 972-947 | FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | 4344 | DLFTWTARPT | TX | |
| 972-948 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | IRVING | TX | |
| 972-949 | SOUTHWESTERN BELL | 9533 | GRANDPRARI | TX | |
| 972-950 | TX | ||||
| 972-952 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 972-953 | SOUTHWESTERN BELL TELEPHONE COMPANY - TX | 7726 | IRVING | TX | |
| 972-954 | ONVOY, LLC - TX | 903C | ALLEN | TX | |
| 972-956 | SOUTHWESTERN BELL TELEPHONE COMPANY - TX | 7726 | LEWISVILLE | TX | |
| 972-957 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | IRVING | TX |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 2026-04 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.