How do IP addresses, prefixes, and ASNs connect?
An IP page shows the matching BGP prefix and ASN. ASN pages list announced prefixes and the peers, upstreams, and downstreams returned by the current source.
NETWORK GUIDE
BGP and ASN Basics Guide
An ASN identifies a network under one routing policy, while BGP exchanges reachable prefixes between networks. The site links IP, prefix, and ASN pages so you can follow that public data step by step.
Data note · IP-VPSMarketLast updated · Jul 20, 2026ASN, BGP, and Routing Topics
This guide explains public network concepts. Routes, ownership records, and Geo data can change; verify time-sensitive decisions with the source or network operator.
Guide category
ASN, BGP, and Routing Topics
Understand ASNs, BGP prefixes, network relationships, route observations, and troubleshooting methods.
What do network relationships establish?
They add interconnection and routing context, but they do not prove that one request used a particular network or establish bandwidth, latency, or service quality.
How should you verify further?
Keep the source labels and query time, compare registry and operator records, and use external traceroute, MTR, or route collectors when investigating an actual packet path.
Questions covered in this guide
BGP and ASN Basics GuideBGP and ASN Basics Guide IP lookupBGP and ASN Basics Guide ASNBGP and ASN Basics Guide BGP prefixIP Geo estimateISP and ASN lookup
Related pages and next steps
AS15169 · Google
View prefixes, peers, upstreams, and downstreams for AS15169 · Google.
AS13335 · Cloudflare
View prefixes, peers, upstreams, and downstreams for AS13335 · Cloudflare.
AS8075 · Microsoft
View prefixes, peers, upstreams, and downstreams for AS8075 · Microsoft.
AS16509 · Amazon
View prefixes, peers, upstreams, and downstreams for AS16509 · Amazon.
Representative IP lookup pages
8.8.8.8 · Google Public DNS
View the address's Geo estimate, ISP, ASN, BGP prefix, sources, and query time.
1.1.1.1 · Cloudflare DNS
View the address's Geo estimate, ISP, ASN, BGP prefix, sources, and query time.
208.67.222.222 · OpenDNS
View the resolver address's Geo estimate, ISP, ASN, BGP prefix, sources, and query time.
9.9.9.9 · Quad9
View the resolver address's Geo estimate, ISP, ASN, BGP prefix, sources, and query time.
Representative ASN pages
AS15169 · Google
View prefixes, peers, upstreams, and downstreams for AS15169 · Google.
AS13335 · Cloudflare
View prefixes, peers, upstreams, and downstreams for AS13335 · Cloudflare.
AS8075 · Microsoft
View prefixes, peers, upstreams, and downstreams for AS8075 · Microsoft.
AS16509 · Amazon
View prefixes, peers, upstreams, and downstreams for AS16509 · Amazon.
Same-category topics
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IP Geolocation Accuracy and Mismatch Guide
Explain why IP Geo databases can disagree on a city or country and how ASN, BGP prefix, source, and query time frame the estimate.
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Compare representative cloud and edge networks by ASN, announced prefixes, peers, upstreams, and downstreams without inferring a specific host or customer workload.
Topic frequently asked questions
What evidence should you check for BGP and ASN Basics Guide?
Record the relevant IP, ASN, BGP prefix, source labels, and query time first. Verify claims about DNS behavior, network operators, or product capabilities against current operator documentation or the relevant registry.
Can public network data prove the conclusion in BGP and ASN Basics Guide?
No. Geolocation, organization labels, and a single route observation all have source and time limits. They cannot independently prove a precise physical location, final provider, security status, or long-term performance.
How should you verify the result?
Repeat the check from another network or time window, compare the related IP and ASN pages, and confirm service-level claims against the operator's current documentation.