The word «proxy» in a price list covers four different products, and three of them are wrong for Telegram. Here is what you are actually buying.
SOCKS5 versus HTTP
An HTTP proxy understands web requests: it reads headers and knows about page addresses. Telegram does not speak HTTP — it uses MTProto over a plain connection, so an HTTP proxy either refuses it or tunnels it blindly.
SOCKS5 sits a layer lower. It does not inspect the payload, it moves bytes. That is what you want. If the listing does not state the type, ask before you pay, not after.
IPv4 versus IPv6
IPv6 is far cheaper, and that is the whole basis of the tempting offers. The reason it is cheap is that providers hold billions of these addresses and hand them out in blocks. Which is precisely why one user cannot be told apart from a thousand neighbours — and precisely why they are trusted less.
For working accounts, buy IPv4. Not superstition: a scarce resource costs money, and expensive resources do not get handed to bot farms in bulk.
Datacentre, residential, mobile
A datacentre IPv4 belongs to a hosting company. Fast and cheap, and its ownership is visible in public databases — to everyone, not just to you.
Residential means a home ISP address: more expensive, looks like a person at a desk. Mobile means a carrier address, the priciest and the most «alive» — thousands of real subscribers sit behind one, and you cannot be separated from them in principle.
Which to pick for a given job is covered in residential or mobile.
What to buy
For a fleet of working accounts: private SOCKS5 on IPv4, one per account. A shared address sinks them as a group — Telegram does not see ten independent people, it sees one entry point. More in proxies for Telegram accounts.
Buy proxiespromo code NEURO — 5% off
Before the first connection, test the proxy: type, availability, and that the address you were promised is the one that shows up.