Prefix Information

The prefix 312 is part of area code 603 serving Manchester, New Hampshire.

This exchange contains 10,000 possible phone numbers (603-312-0000 through 603-312-9999).

Browse Numbers in This Prefix

603-312-0000-0999 603-312-1000-1999 603-312-2000-2999 603-312-3000-3999 603-312-4000-4999 603-312-5000-5999 603-312-6000-6999 603-312-7000-7999 603-312-8000-8999 603-312-9000-9999

Sample Numbers

(603) 312-0000 (603) 312-1234 (603) 312-2000 (603) 312-3333 (603) 312-4444 (603) 312-5555 (603) 312-6000 (603) 312-7777 (603) 312-8888 (603) 312-9999