Autonomous System

AS43857 Fraport AG Frankfurt Airport Services Worldwide

BusinessActiveGermanyRIPE

AS43857 (FRAPORT) is a business network operated by Fraport AG Frankfurt Airport Services Worldwide in Germany, registered with RIPE. It has 9 IPv4 prefixes with 123,136 addresses and 1 IPv6 prefix, which makes it the 2,050th largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses123,136in 9 prefixes
IPv6 prefixes1≈ 6.3 × 10²⁹ addresses
Size rank#2,050of 82,200 active ASNs
Abuser scoreVery Lowunder 0.01% of its addresses flagged · method

Details

OrganizationFraport AG Frankfurt Airport Services Worldwide
AS nameFRAPORT
Websitefraport.com
Country Germany (DE)
Network typeBusiness
RegistryRIPE
Abuse contactabuse@fraport.de
Registered2007-10-10
Last updated2026-08-31

IPv4 prefixes

9 prefixes · 123,136 addresses
NetworkAddressesFirst – last address
146.234.0.0/1665,536146.234.0.0 – 146.234.255.255
146.234.0.0/198,192146.234.0.0 – 146.234.31.255
146.234.32.0/198,192146.234.32.0 – 146.234.63.255
146.234.64.0/198,192146.234.64.0 – 146.234.95.255
146.234.96.0/198,192146.234.96.0 – 146.234.127.255
146.234.128.0/198,192146.234.128.0 – 146.234.159.255
146.234.160.0/198,192146.234.160.0 – 146.234.191.255
146.234.192.0/198,192146.234.192.0 – 146.234.223.255
146.234.255.0/24256146.234.255.0 – 146.234.255.255

IPv6 prefixes

1 prefix
  • 2a04:5740::/29

Query AS43857 with the API

The ASN lookup returns everything on this page as JSON, including every prefix. ASN lookups need an API key: a free account comes with 1,000 requests a day. 

curl "https://api.ipapi.is/?q=AS43857&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS43857, with or without a key:

curl "https://api.ipapi.is/?q=146.234.0.1"

Largest networks in Germany

AS3320 Deutsche Telekom AG36,175,616 IPv4 addressesAS31399 Mercedes-Benz Group AG16,805,888 IPv4 addressesAS3209 Vodafone GmbH15,881,984 IPv4 addressesAS6805 Telefonica Germany GmbH & Co.OHG8,351,488 IPv4 addressesAS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.7,913,472 IPv4 addressesAS24940 Hetzner Online GmbH3,237,120 IPv4 addresses