Not able to send/receive texts to/from iPhone(s) from my android

If the iPhones have not been set up properly to send and receive with their phone number, they would not get your text messages.

In other words it's not you. It's the iPhones

Normally I would try and place the blame entirely on iPhones as I am an android fan. However, I am pretty sure this particular problem lies somewhere in the my network, probably an issue with my sim card. I say this because everyone I know who owns an iPhone, we are talking multiple different phones on multiple different networks who can still send and receive messages to/from other android devices. It would appear it is only me who is having the problem. And since I have swapped devices thinking the problem was in my phone itself and that made no difference Im now convinced that the issue must be with my sim. Still waiting for word from AT&T. 

@SoDope  It is a problem between Apple and AT&T, probably more on the AT&T side of things. We are a family of iPhones, as are most of our friends, and we do not have that issue. Using iMessage to send messages to and from our Android friends works as expected, albeit a bit slower especially if the message contains video but it does go thru. We did have that issue, along with not being able to get 2FA messages a couple of years ago. New SIM cards, resetting the phones, resetting the network settings, having Apple check the phone settings etc, did not help. We eventually had to get AT&T Corporate involved and they found some corrupted settings on our account. I'm not saying that this will correct your issue because it could be something different but it did work in our case and we've not seen that problem since with any of our iPhones across different models and iOS's.

@OttoPylot thank you for taking the time to address my issue. Hopefully I won't have to go all the way up the ladder on this but atleast there's a direction to go in should my local ATT store (which I intend to visit today) not have a viable solution for my issue. Thanks again, have a great day!

@SoDope  Don't expect to get any solid help from your local store, especially if the store is an Authorized AT&T Retail Store. Those stores just sell AT&T goods and services, are not owned/operated by AT&T, and they do not have AT&T employees. Some have questionable business practices as well. Both stores look exactly the same on the inside. A Corporate Store probably won't be able to help you either. These issues usually take someone from engineering/IT to fix, which is way beyond what the CS Agents can do and certainly above what salespeople in stores can do as well.

@OttoPylot any chance u have a number or know of another way of contacting whomever I need to contact to resolve this issue?

@OttoPylot thanks for your help. I'll update my post if/when I resolve.