VPN and Tor Lists vs US Mobile Addresses

Behind many firewall rules and login checks sits a simple question: is this address on a list? There are lists of Tor exit relays, lists of commercial VPN endpoints, lists of hosting and data-centre ranges, and lists of addresses seen sending spam or attacking servers. They are cheap to apply and easy to understand, which is why they are everywhere. This page explains how the main kinds are built, why an AT&T, T-Mobile or Verizon address on a SpoofProxies line usually does not fit their definitions, and how to read the occasional listing that does appear on a shared carrier address.

Tor exit lists

The Tor network publishes information about its relays, and anyone can see which ones allow exit traffic. Sites that block or challenge Tor usually download that exit list and refresh it often. Because it comes from the network itself, it is accurate and narrow: it contains relays that someone chose to run as exits, usually on servers. A carrier address is not on it unless a relay was running behind that exact address, which is unusual on mobile networks. If a mobile line ever shows as a Tor exit in a lookup, the most likely explanation is stale data from another tool, and a quick check against the current exit list settles it.

VPN and hosting range lists

VPN detection lists are compiled in a few ways. Some are built by enumerating the servers of known VPN providers. Some mark entire autonomous systems that belong to hosting companies, on the reasoning that a person browsing from a data centre is probably using a VPN or a server. Open-source projects publish lists of data-centre ranges, and commercial vendors maintain larger, paid versions with provider names attached.

A carrier address does not belong to a hosting network, so the hosting-based lists do not apply to it. Provider-enumeration lists do not include it either, since no consumer VPN runs its endpoints on a mobile SIM. That is a structural reason carrier lines read differently from VPNs, not a matter of luck.

Abuse and spam lists

Abuse lists are the ones that occasionally catch a mobile address. They record addresses seen sending spam, running scans, or hosting infected machines, usually based on honeypots and spam traps. Because a carrier address is shared by many phones through carrier-grade NAT, one infected handset or one misbehaving app on that pool address can place it on a list for a while. Some mail blocklists also list whole consumer and mobile ranges as not expected to send mail directly, which is a policy statement about mail servers, not an accusation.

None of these listings say anything about you or your line. They say something about an address that many people share. Most websites do not act on mail-oriented lists for normal browsing, but some do use abuse lists in scoring.

Reading a listing without panic

When someone on your team finds a line's address on a list, walk through these questions before changing anything. Usually the answer is an abuse listing from another device on the shared pool, and a single rotation moves you to a different address.

• Check which list it is and what it is for: Tor, VPN, hosting, abuse or mail policy.
• Check the date of the entry; many lists expire entries after a period of quiet.
• Remember the address rotates within a regional pool, so the next address may carry no entry.
• Ask whether the list is one the site you care about is likely to use at all.

What lists cannot establish

Lists are binary and backward-looking. They cannot say who is using an address now, cannot see behaviour inside a session, and cannot distinguish a dedicated line from an ordinary phone. That is why most platforms use them as one input and pair them with device, account and behaviour signals. If you run a service yourself, a dedicated line is a handy way to confirm that your rules do not wrongly treat genuine mobile users as VPN or Tor traffic. And whatever a list says, the network path does not change what a platform's rules allow.

For teams that keep notes, record the list name, the entry date and the address alongside the metro, so a later listing can be compared with an earlier one instead of treated as new.

Setting up a VPN and Tor detection lists proxy on SpoofProxies

1. Add a line and confirm the exit address through an IP checker.
2. Check the address against the current Tor exit list if Tor status matters to you.
3. Look up the ASN and confirm it belongs to the carrier's mobile network rather than a hosting company.
4. Check the address on the abuse lists relevant to your work and note the date of any entry.
5. If a current abuse entry matters for the task, rotate once and check the next address.
6. Tell support with addresses and times if every address you sample carries the same listing.

VPN and Tor detection lists proxy questions