Central Office Exchange (NXX)

+1 (743) 203-XXXX

Serving Greensboro, North Carolina, United States

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Looking for a specific 4-digit line in the +1 (743) 203 block? Enter the last 4 digits below to inspect caller data and spam reports immediately:

+1 (743) 203 -

Sample Active Numbers in this Prefix

Random representative sampling of telephone lines in the 1-743-203 block

743-203 0229
743-203 0353
743-203 0809
743-203 0829
743-203 0871
743-203 1328
743-203 1583
743-203 1983
743-203 2152
743-203 2179
743-203 2727
743-203 3143
743-203 3343
743-203 3612
743-203 3792
743-203 3892
743-203 4056
743-203 4116
743-203 4314
743-203 4623
743-203 4699
743-203 5465
743-203 5685
743-203 5927
743-203 6197
743-203 6223
743-203 6621
743-203 6755
743-203 6900
743-203 7204
743-203 7274
743-203 7952
743-203 8170
743-203 8872
743-203 9017
743-203 9044
743-203 9256
743-203 9571
743-203 9579
743-203 9847

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Telecommunication Guide for Exchange 743-203

Under the North American Numbering Plan (NANP), a standard 10-digit telephone number is organized as NPA-NXX-XXXX:

  • NPA (Numbering Plan Area): 743 identifies the geographic region within North Carolina.
  • NXX (Central Office Exchange): 203 identifies the local telephone exchange or switching office serving Greensboro, North Carolina.
  • XXXX (Subscriber Line Number): 10,000 distinct telephone lines (ranging from 0000 to 9999) 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 (743) 203-XXXX
Mobile / Wireless Devices Dial with international plus symbol +1 743 203 XXXX
International Callers Local exit code + 1 + Number 00 1 743 203 XXXX

Frequently Asked Questions

This exchange is assigned to the regional carrier serving Greensboro, North Carolina. 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: North Carolina
  • City / Area: Greensboro
  • Area Code: 743
  • Prefix (NXX): 203
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Area Code 743

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