Not receiving two-factor authentication codes via text

Recently, I stopped receiving texts with the two-factor authorization codes for various services like prescription refill, bank account access, etc. I am thinking that i inadvertently blocked the number these were coming from since many of them came from the same texting short code. Any idea how I can "unblock" this capability? It is frustrating since I am unable to login to my accounts without the codes!

iPhone 14 Pro, iOS 16

Posted on Feb 17, 2023 8:57 PM

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Posted on Feb 17, 2023 9:30 PM

Generally, those verification codes are sent using Short Code Text Messaging. These short code text messages are received from a 5 or 6 digit phone number. This capability/feature is provided and managed by your carrier. I recommend that you contact your carrier and tell them about not receiving verification codes which may be sent over short code messaging service. Their support team should be able to address this for you and find a resolution.


You can also double check to see whether you have blocked that number by opening Settings ➡️ Phone ➡️ Blocked Contacts.


Axel F.

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Question marked as Top-ranking reply

Feb 17, 2023 9:30 PM in response to CuriousBellevue

Generally, those verification codes are sent using Short Code Text Messaging. These short code text messages are received from a 5 or 6 digit phone number. This capability/feature is provided and managed by your carrier. I recommend that you contact your carrier and tell them about not receiving verification codes which may be sent over short code messaging service. Their support team should be able to address this for you and find a resolution.


You can also double check to see whether you have blocked that number by opening Settings ➡️ Phone ➡️ Blocked Contacts.


Axel F.

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Not receiving two-factor authentication codes via text

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