All assignees
800 prefixes in 240 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 240-900 | WSHNGTNZN4 | 876D | 2015-02-18 | Yes |
| 240-901 | LA PLATA | 508J | 2014-05-22 | Yes |
| 240-902 | DAMASCS240 | 506J | 2021-12-28 | Yes |
| 240-903 | INDIANHEAD | 318J | 2013-12-03 | Yes |
| 240-904 | LAUREL238 | 6395 | 2016-06-23 | Yes |
| 240-905 | BRANDYWINE | 5562 | 2022-01-10 | Yes |
| 240-906 | WSHNGTNZN4 | 6855 | — | Yes |
| 240-907 | WSNGTNZN10 | 6395 | 2016-07-12 | Yes |
| 240-908 | WALKERSVL | 876D | 2016-09-02 | Yes |
| 240-909 | LAUREL236 | 5562 | 2022-01-11 | Yes |
| 240-910 | FREDERICK | 876D | 2021-03-03 | Yes |
| 240-911 | XXXXXXXXXX | MULT | — | — |
| 240-912 | GAITHERSBG | 829J | — | Yes |
| 240-913 | DAMASCS240 | 876D | 2016-09-02 | Yes |
| 240-914 | HIGHFIELD | 490J | 2022-01-11 | Yes |
| 240-915 | NEW MARKET | 073H | — | Yes |
| 240-916 | CUMBERLAND | 6855 | — | Yes |
| 240-917 | LAUREL236 | 4036 | 2015-11-12 | Yes |
| 240-918 | ASHTON236 | 6855 | 2016-10-20 | Yes |
| 240-919 | ASHTON236 | 6855 | 2022-01-26 | Yes |
| 240-920 | CUMBERLAND | 6119 | 2001-05-03 | Yes |
| 240-921 | WSNGTNZN10 | 6855 | 2022-01-26 | Yes |
| 240-922 | WSNGTNZN11 | 965H | 2020-07-15 | Yes |
| 240-923 | WSHNGTNZN6 | 6855 | 2022-01-26 | Yes |
| 240-924 | MOUNT AIRY | 071F | 2022-02-10 | Yes |
| 240-925 | LEONARDTN | 6395 | 2001-08-09 | Yes |
| 240-926 | HUGHESVL | 6855 | 2022-05-18 | Yes |
| 240-927 | WSHNGTNZN4 | 6855 | 2022-05-18 | Yes |
| 240-928 | MYERSVILLE | 4036 | 2022-05-26 | Yes |
| 240-929 | WSNG236Z14 | 829J | — | Yes |
| 240-930 | LAUREL238 | 6395 | 2022-06-29 | Yes |
| 240-931 | FREDERICK | 732J | — | Yes |
| 240-932 | WSNG236Z14 | 071F | 2022-06-30 | Yes |
| 240-933 | BUCKEYSTN | 516J | 2022-02-28 | Yes |
| 240-934 | MIDDLETOWN | 516J | 2021-02-12 | Yes |
| 240-935 | LAUREL236 | 6395 | 2022-07-12 | Yes |
| 240-936 | ASHTON236 | 6855 | 2022-05-18 | Yes |
| 240-937 | GAITHERSBG | 071F | 2022-07-22 | Yes |
| 240-938 | ASHTON236 | 6855 | 2001-06-06 | Yes |
| 240-939 | WSNGTNZN11 | 071F | 2022-07-26 | Yes |
| 240-940 | WSHNGTNZN4 | 071F | 2022-07-26 | Yes |
| 240-941 | WSHNGTNZN2 | 071F | 2022-08-03 | Yes |
| 240-942 | BITTINGER | 876D | 2021-03-15 | Yes |
| 240-943 | FROSTBURG | 318J | 2022-08-05 | Yes |
| 240-944 | WESTERNPT | 876D | 2021-03-15 | Yes |
| 240-945 | WSHNGTNZN3 | 876D | 2020-11-06 | Yes |
| 240-946 | WSNG236Z14 | 965H | 2021-10-25 | Yes |
| 240-947 | MYERSVILLE | 4036 | 2022-08-16 | Yes |
| 240-948 | LEONARDTN | 071F | 2022-08-25 | Yes |
| 240-949 | WSNGTNZN16 | 829J | 2001-05-09 | Yes |
| 240-950 | — | — | ||
| 240-951 | HAGERSTOWN | 7325 | 2022-03-24 | Yes |
| 240-952 | HAGERSTOWN | 7325 | 2022-03-24 | Yes |
| 240-953 | HAGERSTOWN | 7325 | 2022-03-24 | Yes |
| 240-954 | HAGERSTOWN | 7325 | 2022-03-24 | Yes |
| 240-955 | LA PLATA | 071F | 2022-08-25 | Yes |
| 240-956 | WSHNGTNZN2 | 876D | 2020-11-06 | Yes |
| 240-957 | DAMASCS236 | 071F | 2022-08-25 | Yes |
| 240-958 | — | — | ||
| 240-959 | — | — | ||
| 240-960 | WSHNGTNZN4 | 6855 | 2022-09-01 | Yes |
| 240-961 | POOLESVL | 6395 | 2022-09-22 | Yes |
| 240-962 | LAUREL236 | 6395 | 2022-10-06 | Yes |
| 240-963 | WSHNGTNZN3 | 071F | 2022-10-18 | Yes |
| 240-964 | CUMBERLAND | 9212 | 2008-05-27 | Yes |
| 240-965 | WSNG236Z13 | 829J | — | Yes |
| 240-966 | WSNGTNZN16 | 516J | 2022-02-25 | Yes |
| 240-967 | CUMBERLAND | 6395 | — | Yes |
| 240-968 | LAUREL236 | 4036 | 2022-10-21 | Yes |
| 240-969 | WALKERSVL | 939H | 2022-11-07 | Yes |
| 240-970 | WSNGTNZN12 | 876D | 2015-06-02 | Yes |
| 240-971 | FREDERICK | 508J | 2016-08-02 | Yes |
| 240-972 | LAUREL238 | 8697 | 2015-05-26 | Yes |
| 240-973 | WSNGTNZN12 | 5562 | 2022-12-01 | Yes |
| 240-974 | WSNGTNZN10 | 4036 | 2022-12-21 | Yes |
| 240-975 | LAUREL238 | 6395 | 2022-12-30 | Yes |
| 240-976 | XXXXXXXXXX | MULT | — | — |
| 240-977 | WSHNGTNZN6 | 876D | 2023-02-22 | Yes |
| 240-978 | ASHTON236 | 6855 | 2023-01-06 | Yes |
| 240-979 | CUMBERLAND | 6119 | — | Yes |
| 240-980 | LEONARDTN | 6395 | 2023-01-09 | Yes |
| 240-981 | GAITHERSBG | 732J | 2023-02-10 | Yes |
| 240-982 | GAITHERSBG | 876D | 2023-01-13 | Yes |
| 240-983 | HAGERSTOWN | 732J | 2023-02-10 | Yes |
| 240-984 | NEW MARKET | 7325 | 2023-02-27 | Yes |
| 240-985 | WILLIAMSPT | 508J | 2016-10-17 | Yes |
| 240-986 | NANJEMOY | 876D | — | Yes |
| 240-987 | WSNGTNZN10 | 4036 | 2023-04-05 | Yes |
| 240-988 | WSHNGTNZN3 | 6855 | — | Yes |
| 240-989 | MYERSVILLE | 4036 | 2023-04-20 | Yes |
| 240-990 | LAUREL236 | 4036 | 2023-05-03 | Yes |
| 240-991 | ASHTON236 | 6855 | 2023-05-05 | Yes |
| 240-992 | WSNGTNZN10 | 6855 | 2023-05-05 | Yes |
| 240-993 | INDIANHEAD | 7229 | 2001-02-13 | Yes |
| 240-994 | WSNGTNZN10 | 6395 | — | — |
| 240-995 | FLINTSTONE | 876D | 2020-05-08 | Yes |
| 240-996 | BRUNSWICK | 6119 | 2016-10-17 | Yes |
| 240-997 | WSHNGTNZN3 | 6395 | — | Yes |
| 240-998 | HANCOCK | 508J | 2016-10-17 | Yes |
| 240-999 | XXXXXXXXXX | 9212 | — | — |
These are initial assignees from NANPA CO-code records — because of number portability, the current serving carrier of individual numbers may differ. Bulk export requires a membership.