Central Office Exchange (NXX)

+1 (510) 670-XXXX

Serving Oakland, California, United States • Carrier: Pacific Bell

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Looking for a specific 4-digit line in the +1 (510) 670 block? Enter the last 4 digits below to inspect caller data and spam reports immediately:

+1 (510) 670 -

Sample Active Numbers in this Prefix

Random representative sampling of telephone lines in the 1-510-670 block

510-670 0606
510-670 0619
510-670 0721
510-670 0932
510-670 1057
510-670 1687
510-670 1696
510-670 1773
510-670 2069
510-670 2093
510-670 2865
510-670 3011
510-670 3458
510-670 3652
510-670 3775
510-670 3934
510-670 4406
510-670 4526
510-670 4546
510-670 4721
510-670 5209
510-670 5531
510-670 5803
510-670 5973
510-670 6371
510-670 7141
510-670 7218
510-670 7544
510-670 7693
510-670 7752
510-670 7917
510-670 7927
510-670 8206
510-670 8434
510-670 8871
510-670 8883
510-670 8961
510-670 9069
510-670 9188
510-670 9679

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Telecommunication Guide for Exchange 510-670

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

  • NPA (Numbering Plan Area): 510 identifies the geographic region within California.
  • NXX (Central Office Exchange): 670 identifies the local telephone exchange or switching office serving Oakland, California.
  • 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 (510) 670-XXXX
Mobile / Wireless Devices Dial with international plus symbol +1 510 670 XXXX
International Callers Local exit code + 1 + Number 00 1 510 670 XXXX

Frequently Asked Questions

The registered service provider for this exchange is Pacific Bell. 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: California
  • City / Area: Oakland
  • Area Code: 510
  • Prefix (NXX): 670
  • Carrier: Pacific Bell
  • Type: Landline
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Area Code 510

Explore other central office exchanges and municipalities covered by area code 510.

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