ASN lookup still quirky?

I understand the 'wonkiness' you're describing with ASN data, and it's a common challenge when dealing with the inherent variability in IP geolocation and network assignment, particularly for mobile and dynamically allocated IPs. The issue stems from several factors: mobile carriers often use large-scale Network Address Translation (NAT) and dynamic IP pools, which can make precise ASN mapping difficult as IPs are frequently reassigned. Furthermore, the underlying databases used by IP lookup services need constant updates, and keeping pace with global network changes, especially for individual residential or mobile IPs, is resource-intensive.

For more reliable ASN and IP geolocation data, especially concerning mobile and residential IP addresses, you generally need to move beyond basic free APIs. Here are some strategies and providers to consider for improving your traffic analysis accuracy:

• Premium IP Geolocation Providers: Services like MaxMind GeoIP2 (their Enterprise database is significantly better for this), IPinfo.io, and DB-IP invest heavily in proprietary data collection and update mechanisms. They often have better coverage and more granular data for mobile networks and residential ISPs compared to generic free services. Digital Element is another very strong contender, particularly known for its IP intelligence.
• Multi-Source Verification: No single provider is 100% accurate across all IP ranges globally. Consider integrating data from two or three premium providers. If you see discrepancies, you can implement a logic to prioritize data from a provider known to be strong in the specific region or network type (e.g., mobile carriers). This approach helps mitigate the weaknesses of any single database.
• Focus on Network Type: Beyond just the ASN, look for providers that offer a 'network type' or 'connection type' attribute (e.g., mobile, broadband, corporate, data center). For geo-targeting and analytics, knowing if an IP is mobile or residential might be more immediately actionable than the raw ASN, which can sometimes be generic for large carriers.
• Understand Database Latency: Remember that IP databases are snapshots. There will always be some latency between network changes and database updates. For highly dynamic environments like mobile, a small percentage of 'outdated' information is almost inevitable, so setting realistic expectations is crucial.

Are you currently leveraging any network type classification in your analytics, or is the raw ASN the primary data point for your geo-targeting logic?

Yeah, using MaxMind and IPinfo.io for multi-source verification totally cleaned up our ASN data, that was spot on! But now we're seeing a noticeable increase in lookup times, which is slowing down our real-time analytics a bit.