Prefix Information

The prefix 378 is part of area code 603 serving Manchester, New Hampshire.

This exchange contains 10,000 possible phone numbers (603-378-0000 through 603-378-9999).

Browse Numbers in This Prefix

603-378-0000-0999 603-378-1000-1999 603-378-2000-2999 603-378-3000-3999 603-378-4000-4999 603-378-5000-5999 603-378-6000-6999 603-378-7000-7999 603-378-8000-8999 603-378-9000-9999

Sample Numbers

(603) 378-0000 (603) 378-1234 (603) 378-2000 (603) 378-3333 (603) 378-4444 (603) 378-5555 (603) 378-6000 (603) 378-7777 (603) 378-8888 (603) 378-9999