# Ggc

Published articles for Ggc.

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## Mapping major CDNs across the globe

DevFeed: [Mapping major CDNs across the globe](<https://devfeed.tech/articles/mapping-major-cdns-across-the-globe-39776.md>)

Original publisher: [Read original article](<https://anuragbhatia.com/post/2026/06/cdn-mapping-across-the-globe/>)

Published: 2026-06-06T13:17:04Z

Content type: article

Language: en

Sources: [Personal blog of Anurag Bhatia](<https://devfeed.tech/sources/personal-blog-of-anurag-bhatia.md>)

Topics: [BGP](<https://devfeed.tech/topics/bgp.md>), [networking](<https://devfeed.tech/topics/networking.md>), [Networks](<https://devfeed.tech/topics/networks.md>), [Routing (disambiguation)](<https://devfeed.tech/topics/routing.md>), [TLS (Transport Layer Security)](<https://devfeed.tech/topics/tls.md>), [data](<https://devfeed.tech/topics/data.md>), [Amazon Web Services](<https://devfeed.tech/topics/aws.md>), [Google](<https://devfeed.tech/topics/google.md>), [Netflix](<https://devfeed.tech/topics/netflix.md>), [Microsoft](<https://devfeed.tech/topics/microsoft.md>), [Pingora](<https://devfeed.tech/topics/pingora.md>)

Tags: [akamai](<https://devfeed.tech/tags/akamai.md>), [apple](<https://devfeed.tech/tags/apple.md>), [aws](<https://devfeed.tech/tags/aws.md>), [bgp](<https://devfeed.tech/tags/bgp.md>), [cdn](<https://devfeed.tech/tags/cdn.md>), [data](<https://devfeed.tech/tags/data.md>), [dns](<https://devfeed.tech/tags/dns.md>), [facebook](<https://devfeed.tech/tags/facebook.md>), [fna](<https://devfeed.tech/tags/fna.md>), [ggc](<https://devfeed.tech/tags/ggc.md>), [google](<https://devfeed.tech/tags/google.md>), [major](<https://devfeed.tech/tags/major.md>), [mapping](<https://devfeed.tech/tags/mapping.md>), [microsoft](<https://devfeed.tech/tags/microsoft.md>), [netflix](<https://devfeed.tech/tags/netflix.md>), [networks](<https://devfeed.tech/tags/networks.md>), [oca](<https://devfeed.tech/tags/oca.md>), [routing](<https://devfeed.tech/tags/routing.md>), [tls](<https://devfeed.tech/tags/tls.md>)

### AI overview

This article maps major content delivery networks worldwide by examining routed IP prefixes, open port 443 services, TLS certificate names, autonomous system numbers, and geographic data. It reports global and India-specific coverage figures for Google GGC, Facebook FNA/MNA, Netflix, Akamai, Apple, Microsoft, and AWS CloudFront, while noting that certificate-based identification may miss some deployments.

### Source excerpt

In Dec 2022 I mapped popular CDNs like Google GGC, Facebook FNA, Akamai, etc. across Indian networks (post here). Since it's been close to 4 years now, I wanted to do that again. This time, I decided to expand the scope to the entire globe instead of just the Indian networks. Mapping logic The logic here is simple: get unique prefixes from the global routing table, break them into /24s, uniquely sort out /24s, and this gives all routed IP addresses in the world in batches of /24s (256 IPs). Next, identify the ones with an open port 443 and then connect to each of them to figure out the TLS certificate common name. Next, map those IP addresses to AS numbers, locations, etc., using Maxmind's GeoIP Lite databases. Essentially, I am using the BGP routing table instead of scanning the entire 0.0.0.0/0 to avoid scanning for prefixes which are not routed in the global table as well as reserved private IPs, etc. Global stats CDN Provider No. unique ASNs TLS domain Details list URL Google GGC 4247 googlevideo.com csv & json Netflix OCA 2903 oca.nflxvideo.net, assets.nflxext.com csv & json Facebook FNA 2548 'fbcdn.net', fna.whatsapp.net csv & json Akamai 1094 edgesuite.net, edgekey.net, akamaized.net, akamaihd.net, akamaized.net, akamai.net csv & json Microsoft 1655 microsoft.com csv & json Apple 974 apple.com & itunes.apple.com csv & json AWS Cloudfront 217 *.amazonaws.com & *.awsstatic.com csv & json ASN-CDN Mapping table I have mapped ASNs with the presence of each of these CDNs like last time. This makes it easy to read the data instead of going through each of the files separately. Full data in Google Sheet link here and raw CSV is also published here. Notes: Facebook FNA serving Facebook with *.fbcdn.net is almost the same if I look for *.fna.whatsapp.net. Apple seems to have presence in over 236 locations with PCH/Woodynet for hosting their DNS over HTTPS endpoint: doh.dns.apple.com (detailed list here) GGC has a global coverage across 215 countries across the world, f