All assignees
800 prefixes in 240 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 240-800 | WSHNGTNZN2 | 2593 | 2012-06-22 | Yes |
| 240-801 | GAITHERSBG | 6395 | 2013-10-04 | Yes |
| 240-802 | WSHNGTNZN2 | 551G | 2013-05-10 | Yes |
| 240-803 | CUMBERLAND | 4036 | 2012-01-27 | Yes |
| 240-804 | TOMPKINSVL | 876D | — | Yes |
| 240-805 | GAITHERSBG | 6395 | 2015-11-17 | Yes |
| 240-806 | INDIANHEAD | 568G | 2015-09-30 | Yes |
| 240-807 | CUMBERLAND | 4720 | 2021-09-01 | Yes |
| 240-808 | LEONARDTN | 6395 | 2015-03-31 | Yes |
| 240-809 | SMITHSBURG | 876D | 2021-09-01 | Yes |
| 240-810 | WSNGTNZN10 | 6855 | 2016-04-05 | Yes |
| 240-811 | XXXXXXXXXX | MULT | — | — |
| 240-812 | POOLESVL | 6119 | — | Yes |
| 240-813 | GAITHERSBG | 829J | — | Yes |
| 240-814 | LAUREL236 | 6395 | 2022-05-20 | Yes |
| 240-815 | FREDERICK | 6395 | 2015-11-17 | Yes |
| 240-816 | KEEDYSVL | 071F | 2015-10-05 | Yes |
| 240-817 | ASHTON236 | 6855 | 2016-01-12 | Yes |
| 240-818 | MYERSVILLE | 6395 | — | Yes |
| 240-819 | WILLIAMSPT | 876D | 2021-09-01 | Yes |
| 240-820 | ASHTON238 | 876D | 2021-03-25 | Yes |
| 240-821 | WSHNGTNZN3 | 829J | 2005-05-27 | Yes |
| 240-822 | NEW MARKET | 876D | 2021-03-15 | Yes |
| 240-823 | BRANDYWINE | 7229 | 2001-02-13 | Yes |
| 240-824 | FROSTBURG | 876D | 2021-03-15 | Yes |
| 240-825 | WSHNGTNZN4 | 6395 | 2016-03-17 | Yes |
| 240-826 | WSNGTNZN10 | 9212 | 2007-05-07 | Yes |
| 240-827 | LONACONING | 876D | 2021-09-01 | Yes |
| 240-828 | WSHNGTNZN4 | 073H | — | Yes |
| 240-829 | EMMITSBURG | 469J | 2019-09-12 | Yes |
| 240-830 | WSHNGTNZN5 | 318J | 2015-11-10 | Yes |
| 240-831 | FREDERICK | 876D | 2016-04-26 | Yes |
| 240-832 | WSHNGTNZN2 | 6855 | — | Yes |
| 240-833 | WSNGTNZN11 | 7229 | — | Yes |
| 240-834 | KITZMILLER | 876D | 2021-03-15 | Yes |
| 240-835 | CLEAR SPG | 624H | 2021-06-03 | Yes |
| 240-836 | MT SAVAGE | 876D | 2021-09-01 | Yes |
| 240-837 | HUGHESVL | 7229 | 2001-02-13 | Yes |
| 240-838 | WSHNGTNZN5 | 6855 | 2001-03-12 | Yes |
| 240-839 | WSHNGTNZN3 | 6395 | 2007-01-13 | Yes |
| 240-840 | FREDERICK | 624H | 2018-06-19 | Yes |
| 240-841 | LAUREL238 | 7229 | — | Yes |
| 240-842 | WSNG238Z14 | 7229 | — | Yes |
| 240-843 | WSNG238Z13 | 7229 | — | Yes |
| 240-844 | RIDGE | 876D | — | Yes |
| 240-845 | WSNG236Z13 | 7229 | — | Yes |
| 240-846 | WSNGTNZN16 | 7229 | — | Yes |
| 240-847 | WSHNGTNZN3 | 876D | 2015-12-09 | Yes |
| 240-848 | GAITHERSBG | 5562 | — | Yes |
| 240-849 | HAGERSTOWN | 7325 | 2021-09-08 | Yes |
| 240-850 | HAGERSTOWN | 568G | 2016-05-25 | Yes |
| 240-851 | MCCOOLE | 876D | 2020-07-16 | Yes |
| 240-852 | MYERSVILLE | 6855 | 2021-09-13 | Yes |
| 240-853 | LAUREL236 | 071F | 2021-09-28 | Yes |
| 240-854 | WSHNGTNZN4 | 6855 | 2021-12-07 | Yes |
| 240-855 | WSHNGTNZN2 | 6855 | 2006-10-09 | Yes |
| 240-856 | LAUREL238 | 6395 | 2016-04-11 | Yes |
| 240-857 | WSHNGTNZN5 | 7591 | — | — |
| 240-858 | WSHNGTNZN2 | 6395 | 2016-07-12 | Yes |
| 240-859 | ASHTON238 | 876D | 2016-07-11 | Yes |
| 240-860 | CUMBERLAND | 568G | 2016-08-23 | Yes |
| 240-861 | ASHTON236 | 6855 | 2021-10-07 | Yes |
| 240-862 | MT SAVAGE | 876D | 2016-09-02 | Yes |
| 240-863 | WSHNGTNZN3 | 7591 | — | Yes |
| 240-864 | WSNGTNZN10 | 829J | 2001-05-09 | — |
| 240-865 | WSNG238Z14 | 6119 | — | Yes |
| 240-866 | HAGERSTOWN | 145J | 2019-09-20 | Yes |
| 240-867 | WSHNGTNZN3 | 939H | 2017-06-20 | Yes |
| 240-868 | WSNGTNZN12 | 829J | 2001-05-09 | Yes |
| 240-869 | WSNGTNZN10 | 6855 | 2021-10-07 | Yes |
| 240-870 | MIDDLETOWN | 876D | 2016-09-02 | Yes |
| 240-871 | LXTNPKGRML | 6855 | 2021-10-07 | Yes |
| 240-872 | WSHNGTNZN6 | 6855 | 2021-10-07 | Yes |
| 240-873 | BUCKEYSTN | 876D | 2019-10-10 | Yes |
| 240-874 | THURMONT | 876D | 2019-10-10 | Yes |
| 240-875 | MOUNT AIRY | 876D | 2019-10-10 | Yes |
| 240-876 | WSHNGTNZN2 | 6855 | — | Yes |
| 240-877 | FREDERICK | 876D | 2016-08-25 | Yes |
| 240-878 | HAGERSTOWN | 939H | 2017-08-03 | Yes |
| 240-879 | WSHNGTNZN4 | 6855 | 2021-10-07 | Yes |
| 240-880 | WSNGTNZN11 | 6119 | — | Yes |
| 240-881 | WSNG238Z13 | 071F | 2021-11-04 | Yes |
| 240-882 | WSHNGTNZN5 | 5562 | — | Yes |
| 240-883 | ASHTON236 | 6119 | — | Yes |
| 240-884 | TOMPKINSVL | 624H | 2021-04-29 | Yes |
| 240-885 | WSNGTNZN10 | 876D | 2021-01-21 | Yes |
| 240-886 | WSHNGTNZN4 | 6855 | 2021-11-17 | Yes |
| 240-887 | ASHTON236 | 6855 | 2021-12-07 | Yes |
| 240-888 | WSNGTNZN10 | 4036 | — | — |
| 240-889 | WSNGTNZN10 | 6855 | 2021-12-06 | Yes |
| 240-890 | WSHNGTNZN5 | 6395 | 2021-12-07 | Yes |
| 240-891 | DAMASCS240 | 6119 | 2021-12-10 | Yes |
| 240-892 | WSNG236Z15 | 6119 | — | Yes |
| 240-893 | WSHNGTNZN3 | 4036 | — | — |
| 240-894 | LXTNPKGRML | 490J | 2021-12-10 | Yes |
| 240-895 | LXTNPKGRML | 9212 | — | Yes |
| 240-896 | HAGERSTOWN | 490J | 2021-12-28 | Yes |
| 240-897 | WSNGTNZN16 | 6119 | — | Yes |
| 240-898 | WSHNGTNZN4 | 6119 | — | Yes |
| 240-899 | WSHNGTNZN2 | 6855 | 2001-03-13 | — |
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.