ASN, ISP and carrier targeting: what changes?
An ASN identifies a network operator, an ISP describes a provider category, and a mobile carrier is the radio network behind a mobile exit. These terms are not interchangeable.
Choose the constraint that matters
For a service that allows a broad region, country targeting is enough. Use ASN targeting only when a task explicitly requires a particular network. For mobile jobs, carrier selection may depend on device or pool inventory.
Check product support
Not every network exposes every filter. Review the configurator or order form before building usernames around an option. A marketing list of countries is not proof of ASN or carrier support.
Measure the actual result
Record the exit IP and inspect its ASN and carrier using an independent lookup. Recheck after rotation: a rotating session may move between operators even while the country remains unchanged.
Worked example
Write down the exact property you require: an ASN number, an ISP or a mobile carrier. Country alone proves none of them. Check the first assigned exit, then test again after rotation and record cases where the region stays the same but the network changes.
Common questions
Are an ASN and a carrier the same thing?
No. An ASN identifies an autonomous routing network; a carrier is a mobile operator. One operator can use several ASNs, so check the actual exit.
Can any network target a specific ASN?
No. Available filters depend on the product. Use parameters exposed by the configurator and verify the assigned exit.