443-448 phone numbers

Numbers 443-448-0000 to 443-448-9999 are assigned to Comcast Ip Phone, LLC in Denton, MD. 7 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 443-448-0xxx — calls from these use spoofed caller IDs.

Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.

Reported numbers in 443-448