I bought a lot of proxies for the service ($30 per port) and shared device ($50 port), external IP addresses cross between ports within the same tariff and between service and shared devices tariffs
Consequently, they will sell you access to the same modem several times, and they sell the same modems in different tariffs
Support may not respond for a long time
I communicated about the crossing of external IPs, they promised to check and answer with the results, but in the end there are no check results, my next messages are ignored
for example AT&T service and shared devices proxies (39 ports) (sorted by ip)
external_ip:host

ort:login
0 - it is impossible to get ip at the moment because of rotation
0:hub-us-3.litport.net:1337:9XjG17
0:hub-us-3.litport.net:1337:dLee4j
0:hub-us-5.litport.net:1337:V78IGy
0:hub-us-6.litport.net:1337:87J0ku
107.72.178.212:hub-us-1.litport.net:1337:130u3h
107.77.200.236:hub-us-5.litport.net:1337:0aMNRg
107.77.200.236:hub-us-6.litport.net:1337:Xn4Oj5
107.77.204.177:hub-us-1.litport.net:1337:WJnVz7
107.77.204.190:hub-us-1.litport.net:1337:885nP8
107.77.204.190:hub-us-1.litport.net:1337:FTP9Jd
107.77.205.10:hub-us-3.litport.net:1337:3ewDuw
107.77.216.102:hub-us-1.litport.net:1337:H63Qtv
107.77.223.63:hub-us-1.litport.net:1337:iiyOY7
107.77.226.27:hub-us-1.litport.net:1337:7LqOJH
107.77.227.208:hub-us-3.litport.net:1337:1B0JOh
107.77.227.208:hub-us-3.litport.net:1337:1EkU35
107.77.227.208:hub-us-3.litport.net:1337:2O0j22
107.77.227.208:hub-us-3.litport.net:1337:4oLZTo
107.77.227.208:hub-us-3.litport.net:1337:5b8LuI
107.77.227.208:hub-us-3.litport.net:1337:6U8Exr
107.77.227.208:hub-us-3.litport.net:1337:9j7iUt
107.77.227.208:hub-us-3.litport.net:1337:A86uTg
107.77.227.208:hub-us-3.litport.net:1337:FHGi2k
107.77.227.208:hub-us-3.litport.net:1337:Guoeo9
107.77.227.208:hub-us-3.litport.net:1337:N3l07p
107.77.227.208:hub-us-3.litport.net:1337:V98Iiu
107.77.227.208:hub-us-3.litport.net:1337:YgotVk
107.77.227.208:hub-us-3.litport.net:1337:gtaVTQ
107.77.227.208:hub-us-3.litport.net:1337:z1trr1
107.77.227.51:hub-us-3.litport.net:1337:GzFF5T
107.77.227.51:hub-us-3.litport.net:1337:mRw9hp
107.77.228.129:hub-us-3.litport.net:1337:3h618T
107.77.228.129:hub-us-3.litport.net:1337:Kfp32G
107.77.228.129:hub-us-3.litport.net:1337:KrfI5F
107.77.228.129:hub-us-3.litport.net:1337:gv9Ll7
107.77.231.131:hub-us-3.litport.net:1337:1zhZ66
107.77.231.131:hub-us-3.litport.net:1337:x05o6i
2600:387:8:f::83:hub-us-5.litport.net:1337:5GZ0zZ
2600:387:8:f::83:hub-us-6.litport.net:1337:XzCAS2
As a result, I cannot recommend their services, specially if you need a lot of proxies.
P.S.
I forgot to mention the rotation, you can choose a rotation of 2m on the site and get 5m, choose 5m and get 10m
P.S.S.
it is impossible to buy several ports with one payment, you had to make each purchase separately, because of this I had to pay in cryptocurrency, it is more comfortable, and there are no refunds when buying for cryptocurrencies)