3 free numbers received an SMS from VK in the last 7 days, so VK still delivers to them. Use one for your VK verification code.
VK: 908474 - code to sign in to VK ID account
+5511953268668VK: 477818 - code to create VK ID account
+553231421984VK: 047175 - code to sign in to VK ID account
+556136863248Receive VK SMS OnlineFree Brazil Phone Numbers for SMS
Pick a number above that recently got an SMS from VK, enter it in VK, then open the number here. The code shows up in its inbox within seconds of arriving.
VK blocks numbers that many people share. If nothing shows up after a minute, try another number from the list. The ones at the top heard from VK most recently.
Only for throwaway accounts. Anyone can read these messages, and someone else could use the same number to take over the account later.