Which market and network is this IP in?

What the lookup shows, and where it comes from

Every IP belongs to a range registered to an organisation: a mobile carrier, a hosting firm, a broadband provider or a large business. Commercial databases (ip-api, ipinfo, IP2Location and MaxMind GeoIP2, among others) track those registrations and where each range is used. When you press Look up, our server forwards your query to ip-api and displays the answer.

The fields that matter most to a team:

• Country / region / city - the location of the range, most dependable at country level.
• ASN - a number that identifies the network the IP belongs to, showing whether it is home broadband, mobile or data-centre space.
• ISP / organization - the business that operates the range.
• Datacenter / proxy / mobile flags - the database’s estimate of the range type: data-centre space, a known proxy service or mobile carrier addresses. Signals, not certainties.

Networks carry reputations too

Many sites judge traffic by network rather than address by address. Amazon Web Services, for instance, runs its addresses under AS16509, and abuse databases tend to label whole hosting networks like it as data-centre traffic. So an address freshly allocated in that network may meet a CAPTCHA the first time it loads a page, which is a problem when your team needs the page a normal customer sees.

Addresses from home and mobile networks, such as Vodafone UK (AS5378), AT&T (AS7018) or Comcast (AS7922), are what sites see from their own customers every day, so they are usually treated as ordinary visitors. That is why ad verification and local price research usually run on residential or mobile proxies.

Accuracy at country, city and postcode level

• Country level - 99%+ accurate, so the country shown is safe to use when you map IPs to markets.
• City level - 50-80% accurate; the figure varies by country and by database. When a provider sends a whole region’s traffic through one point of presence, the reported city may sit hundreds of km from the real one.
• Postal code - seldom dependable; at most a rough pointer.

For campaign checks and price research, the country and the ASN are the fields to trust; the city is a guide at best.

Checking proxies before a project starts

When new proxies arrive, look up a sample of their IPs here and confirm that:

1. each IP sits in the country on your order;
2. the ASN fits the product, for example a home broadband provider for residential proxies;
3. residential and mobile proxies show No under “Datacenter / hosting”;
4. mobile proxies show Yes under “Mobile carrier”.

A mismatch is worth raising with the supplier before the IPs go into client work, keeping in mind that city data in particular can be wrong. The lookup is free, so our proxies can face the same checks before you place a larger order.