Central Office Exchange (NXX)
+1 (603) 899-XXXX
Serving New Hampshire, United States • Carrier: No New England Tel Op DBA Fairpoint Comm
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Telecommunication Guide for Exchange 603-899
Under the North American Numbering Plan (NANP), a standard 10-digit telephone number is organized as NPA-NXX-XXXX:
- NPA (Numbering Plan Area):
603identifies the geographic region within New Hampshire. - NXX (Central Office Exchange):
899identifies the local telephone exchange or switching office serving New Hampshire. - XXXX (Subscriber Line Number): 10,000 distinct telephone lines (ranging from
0000to9999) are routed through this exchange.
How to Correctly Dial Numbers in this Prefix:
| Call Origin | Dialing Instructions | Example |
|---|---|---|
| Local or Domestic (US/Canada) | Dial 1 + 10-Digit Number | 1 (603) 899-XXXX |
| Mobile / Wireless Devices | Dial with international plus symbol | +1 603 899 XXXX |
| International Callers | Local exit code + 1 + Number | 00 1 603 899 XXXX |
Frequently Asked Questions
The registered service provider for this exchange is No New England Tel Op DBA Fairpoint Comm. Note that individual line numbers may have been transferred to other providers via Local Number Portability (LNP).
Calls from this prefix could originate from local businesses, hospitals, friends, or automated dialers. If you received an unsolicited call from an unknown party in this exchange, enter the full 4 digits in our search box above to check for community scam or telemarketer reports.
Exchange Information
- Country: Unites States (+1)
- State: New Hampshire
- City / Area: New Hampshire
- Area Code: 603
- Prefix (NXX): 899
- Carrier: No New England Tel Op DBA Fairpoint Comm
- Type: Landline
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Area Code 603
Explore other central office exchanges and municipalities covered by area code 603.
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