A local number. A little more freedom.
Get a 603
phone number.
A local number for Manchester, NH. Call and text over WiFi or mobile data, on the phone you already have.
- Calls and texts
- No extra SIM
- Location
- Manchester, New Hampshire
- Time zone
- Eastern (GMT -5)
Where is area code 603 located?
Area code 603 is a New Hampshire area code, serving Manchester, NH and nearby cities including Nashua, Concord, Derry. It is in the Eastern (GMT -5) time zone.
Who is calling from area code 603?
A 603 call comes from a number assigned to the Manchester, NH area, which can be a mobile, a landline or an app-based number like AvoCall's. Caller ID can be faked from any area code, so if you don't know the number, let it go to voicemail and never share a code you didn't ask for.
How do I get a 603 phone number?
Pick an available 603 number and sign up for AvoCall. Your new Manchester, NH number works for calls and texts on your existing phone over WiFi or data. No second SIM is needed. Right now 20 numbers in the 603 area code are available on this page (checked October 11, 2026 at 8:41 AM UTC).
Find one that feels like yours
Choose a 603 number
20 numbers listed · Checked October 11, 2026 at 8:41 AM UTC.
- (603) 420-0516Manchester, NH
- (603) 200-9781Manchester, NH
- (603) 471-5724Bedford, NH
- (603) 803-5453Keene, NH
- (603) 291-1551Greenville, NH
- (603) 347-7350Kingston, NH
- (603) 802-8377Concord, NH
- (603) 912-7938Salem, NH
- (603) 200-9510Newmarket, NH
- (603) 719-5041Keene, NH
- (603) 473-4202Milton Mills, NH
- (603) 200-8170Newmarket, NH
- (603) 691-0509Exeter, NH
- (603) 347-7315Kingston, NH
- (603) 200-9671Newmarket, NH
- (603) 713-0034Nashua, NH
- (603) 713-0022Nashua, NH
- (603) 810-0428Nashua, NH
- (603) 326-7796Berlin, NH
- (603) 200-1226Newmarket, NH
Every number requires an AvoCall plan. Current web pricing is verified at checkout, and number availability changes often.
About the 603 area code
Since 1947, area code 603 has belonged to New Hampshire, where it covers Manchester, Nashua, Concord, Derry, and Rochester on Eastern time (GMT -5).
603 was part of the original group of area codes assigned in 1947 and has never been split or overlaid. The same single code has answered for its territory from the beginning, an unbroken assignment now decades old.
Dialing note: 603 has been in service since 1947, making it one of the original North American area codes.
Numbering details on this page (service dates and overlay status) are checked against the NANPA numbering registry. Registry data as of 10/08/2026.
603 phone number FAQ
- Can I receive verification codes on a 603 number?
- AvoCall 603 numbers support calling and messaging. Verification-text compatibility varies by sender; short-code and 2FA delivery is not guaranteed.
- Which 603 numbers are available right now?
- As of October 11, 2026 at 8:41 AM UTC, 20 603 numbers were available to claim on this page. Inventory is re-checked hourly and changes as numbers are claimed, and availability is confirmed at checkout. See the current list.