← Area code 240
240-400 phone numbers
Numbers 240-400-0000 to 240-400-9999 are assigned to Omnipoint Communications Cap Operations, LLC (rate centre WSHNGTNZN2, MD, NANPA abbreviation). 9 of its ten thousand-number blocks are assigned to other carriers (number pooling).
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.
Reported numbers in 240-400
- 1 (240) 400-3632 9complaints
- 2 (240) 400-3249 6complaints
- 3 (240) 400-3321 3complaints
- 4 (240) 400-9113 3complaints
- 5 (240) 400-9726 3complaints
- 6 (240) 400-0607 2complaints
- 7 (240) 400-3223 2complaints
- 8 (240) 400-3227 2complaints
- 9 (240) 400-3377 2complaints
- 10 (240) 400-3576 2complaints
- 11 (240) 400-3682 2complaints
- 12 (240) 400-9642 2complaints
- 13 (240) 400-9723 2complaints
- 14 (240) 400-9785 2complaints
- 15 (240) 400-0843 1complaints
- 16 (240) 400-1801 1complaints
- 17 (240) 400-2675 1complaints
- 18 (240) 400-3039 1complaints
- 19 (240) 400-3040 1complaints
- 20 (240) 400-3052 1complaints
- 21 (240) 400-3196 1complaints
- 22 (240) 400-3246 1complaints
- 23 (240) 400-3248 1complaints
- 24 (240) 400-3288 1complaints
- 25 (240) 400-3320 1complaints
- 26 (240) 400-3367 1complaints
- 27 (240) 400-3381 1complaints
- 28 (240) 400-3419 1complaints
- 29 (240) 400-3439 1complaints
- 30 (240) 400-3485 1complaints
- 31 (240) 400-3558 1complaints
- 32 (240) 400-3579 1complaints
- 33 (240) 400-3622 1complaints
- 34 (240) 400-3649 1complaints
- 35 (240) 400-3674 1complaints
- 36 (240) 400-3715 1complaints
- 37 (240) 400-3810 1complaints
- 38 (240) 400-3846 1complaints
- 39 (240) 400-6531 1complaints
- 40 (240) 400-7374 1complaints
- 41 (240) 400-7495 1complaints
- 42 (240) 400-7808 1complaints
- 43 (240) 400-8465 1complaints
- 44 (240) 400-9007 1complaints
- 45 (240) 400-9030 1complaints
- 46 (240) 400-9060 1complaints
- 47 (240) 400-9091 1complaints
- 48 (240) 400-9156 1complaints
- 49 (240) 400-9180 1complaints
- 50 (240) 400-9181 1complaints
Showing the 50 most-reported.