Editing Caller ID (section)

===Enabling caller ID delivery===
Depending on the operator and country, there are a number of prefix codes that can unblock or enable Caller ID transmission by the caller.

{| class=wikitable
|-
!Country
!Prefix code
|-
|Australia || *31# (mobile phones) 1832 (analogue landline) *65 (NBN landline)
|-
|Czech Republic || *31* (landline)
|-
|Denmark || *31*
|-
|Germany || *31# (Some mobile providers)
|-
|India || *31#
|-
|Ireland || *31# (dialling from mobile)<br/> 142 (dialling from landlines)
|-
|Japan || 186
|-
|Hong Kong || 1357
|-
|New Zealand || 0196 (Telecom/Spark)
|-
|North America || *82 (*UB, '''U'''n'''B'''lock)<br/> 1182 (rotary phone).
|-
|Switzerland || #31#
|-
|United Kingdom || 1470
|}

On GSM mobile networks, callers may dial *31#<ref name="gsmfeatures" /> to enable caller ID on all subsequent calls.