Networking

Phone Star Codes

Common Vertical Service Codes (*xx codes) for landlines and mobile — forwarding, caller ID, voicemail.

Updated Apr 19, 2026 2 min read

Standard North American Vertical Service Codes. Availability depends on carrier.

Call forwarding

CodePurpose
*72Activate call forwarding — dial then the destination number
*73Deactivate call forwarding
*90Busy forwarding — activate
*91Busy forwarding — deactivate
*92No-answer forwarding — activate
*93No-answer forwarding — deactivate

Caller ID

CodePurpose
*67Block caller ID for this call
*82Unblock caller ID for this call
*69Call last inbound number (call return)
*57Call trace (trap threatening calls)
*60Call block (selective)
*80Call block — deactivate

Voicemail / call waiting

CodePurpose
*70Disable call waiting for this call
*98Access voicemail (Verizon / many carriers)
*86Access voicemail (Bell Canada, others)
*611Call carrier customer service (mobile)

Mobile GSM codes

CodePurpose
*#06#Show IMEI
##002#Cancel all call-forwarding
*#21#Check call-forwarding status
*#62#Check forwarding when unreachable

Notes

  • Dial star code first, then number (without pause). Some systems use # instead of *.
  • In the EU and many other regions, # and * combinations vary — check your carrier.
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