Unlike Overwatch 2, Modern Warfare 2's mobile phone requirement is PC-only

Console players aren’t subject to the same SMS security policy as PC…

Games Like 'Call of Duty: Modern Warfare II' to Play Next - Metacritic

Modern Warfare 2 has the same 'no prepaid phone' requirement as Overwatch 2

Modern Warfare 2 Will Use Overwatch 2's Phone Verification : r/xboxone

Only PC players have to register a phone number to play Modern Warfare 2

Overwatch 2 Removes Phone Requirement for Existing Players

Overwatch 2, other Blizzard titles heading to Steam - The Independent Video Game Community

Unlike Overwatch 2, Modern Warfare 2's mobile phone requirement is PC-only

Call of Duty: Modern Warfare II Editions, Benefits Detailed [Updated] — Call of Duty: Modern Warfare II — Blizzard News

Overwatch 2's New Phone Number Requirement Is Rejecting Pre-Paid Plans