← Area code 443
443-400 phone numbers
Numbers 443-400-0000 to 443-400-9999 are assigned to Mcimetro Access Transmission Services LLC (rate centre BRYNPKLNCM, MD, NANPA abbreviation). 7 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 443-400
- 1 (443) 400-7421 3complaints
- 2 (443) 400-9364 2complaints
- 3 (443) 400-0149 1complaints
- 4 (443) 400-0151 1complaints
- 5 (443) 400-0389 1complaints
- 6 (443) 400-0920 1complaints
- 7 (443) 400-0930 1complaints
- 8 (443) 400-1099 1complaints
- 9 (443) 400-1790 1complaints
- 10 (443) 400-3830 1complaints
- 11 (443) 400-5230 1complaints
- 12 (443) 400-5335 1complaints
- 13 (443) 400-6375 1complaints
- 14 (443) 400-7080 1complaints
- 15 (443) 400-7372 1complaints
- 16 (443) 400-7413 1complaints
- 17 (443) 400-7415 1complaints
- 18 (443) 400-7654 1complaints
- 19 (443) 400-7715 1complaints
- 20 (443) 400-7842 1complaints
- 21 (443) 400-7893 1complaints
- 22 (443) 400-7904 1complaints
- 23 (443) 400-7921 1complaints
- 24 (443) 400-7986 1complaints
- 25 (443) 400-8373 1complaints
- 26 (443) 400-9119 1complaints
- 27 (443) 400-9262 1complaints
- 28 (443) 400-9601 1complaints
- 29 (443) 400-9902 1complaints