Is IDD supported on Grid Mobile’s network? gridSupport June 04, 2020 10:07 Updated Follow Yes, refer here for the list of destinations and rates. Related articles How do I make an IDD 019 call? Where can I refer to the rates for IDD services? Do I have to purchase Hype Packs to use roaming / IDD services? Are there any registration fees or monthly subscription charge for IDD 001 and IDD 019? How does port-in works? Comments 0 comments Please sign in to leave a comment.