As you might already know, one-time temporary VoIP numbers are not the best when it comes to sensitive fraud operations which have antifraud systems that do instant background checks on a phone number, but they are useful when required so you can just get by
Here are some tools to check if a number is VoIP, landline, wireless, etc:
https://www.ipqualityscore.com/free-phone-number-lookup
Phone Number Services, for one-time SMS verification or long-term renting:
textverified.com
I personally know from self-reg service vendors that they complain textverified’s numbers are often flagged for sensitive operations, still, decent quality)
smspool.net | @smspoolnews | @smspool_bot
Mixed voip / non-voip, lots of sms services resell from here
smspva.com | @smspva_news_official
Mixed voip / non-voip
You can also try finding real consistent Non-VoIP (meaning real numbers from sims) from niche services on marketing forums like blackhatworld or service providers from fraud forums such as wwh and others.
If you want me to add someone to the service list, feel free to mention them.
About E-SIMs, I don’t recommend you to use them for fraud on your own phone or in a phone that’s in your vicinity
The IMSI (your sim/esim’s ID) gets linked to your IMEI to cellular towers, and you already know every call and sms is plaintext and spied on, which is dangerous, as it’s a lot easier to pinpoint your phone location due to the amount of cellular towers around you, add that with potential stingrays as you scale your operations and other factors which further reveal your location, you’ll be cooked.
If you really have to use an E-SIM, buy a very cheap burner android with cash outside cameras so the IMEI won’t be linked to you, buy the sim/e-sim physically second hand or digitally from e-sim vendors, then go to a temporary location and do your own thing.
What I can recommend you for safer fraud operations is wireless providers.
Providers such as TextNow let you send SMS and make calls directly from within the app.
They all make the call over the internet instead using actual cellular towers.
Bonus points if you can find something that works within a browser on your PC, such as a SIP Route, like Telnyx, Google Voice or similar custom routes. That way you can use some antidetect browser so you can spoof your identifiers, instead of exposing your real phone unique identifiers to the apps that collect them.
Of course, don’t ever use those apps for anonymity purposes, there is Signal, Session, SimpleX, Matrix and more for that.

