Central Office Exchange (NXX)
+1 (463) 903-XXXX
Serving Indianapolis-city-(balance), Indiana, United States
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Telecommunication Guide for Exchange 463-903
Under the North American Numbering Plan (NANP), a standard 10-digit telephone number is organized as NPA-NXX-XXXX:
- NPA (Numbering Plan Area):
463identifies the geographic region within Indiana. - NXX (Central Office Exchange):
903identifies the local telephone exchange or switching office serving Indianapolis-city-(balance), Indiana. - 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 (463) 903-XXXX |
| Mobile / Wireless Devices | Dial with international plus symbol | +1 463 903 XXXX |
| International Callers | Local exit code + 1 + Number | 00 1 463 903 XXXX |
Frequently Asked Questions
This exchange is assigned to the regional carrier serving Indianapolis-city-(balance), Indiana. Specific lines can be ported between wireless and wireline providers.
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: Indiana
- City / Area: Indianapolis-city-(balance)
- Area Code: 463
- Prefix (NXX): 903
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Area Code 463
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