There is no limit. You can register as many as you need.
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Related: Please tell me about access restriction by global IP address (Group IP Restrictions and Folder IP Restrictions)
https://help.teachme.jp/hc/en-us/articles/900005508766
How many global IP addresses can be registered with the Group IP Restriction and Folder IP Restriction functions?
2021-07-07 07:51:58 UTC
2026-01-16 05:14:43 UTC