Johannes Gutenberg-Universitaet Mainz operates AS2857: 10 IPv4 prefixes covering 332,800 addresses, most of them in 
Germany.
By IPv4 addresses the network ranks #721 worldwide and #25 of 2,588 networks in Germany. That is 0.23% of the country’s IPv4 space.
The largest block is 143.93.0.0 to 143.93.255.255 with 65,536 addresses, geolocated to K-Town.
- IPv4 addresses
- 332,800
- IPv4 prefixes
- 10
- World rank
- #721
- Country share
- 0.23%
- IPv6 ranges
- 1
Addresses by country
- Germany 100%
Largest blocks
- 143.93.0.0 K-Town65,536
- 141.26.0.0 Koblenz65,536
- 139.14.0.0 Landau65,536
- 136.199.0.0 Trier65,536
- 134.93.0.0 Mainz65,536
- 217.198.240.0 Mainz4,096
- 193.43.29.0 Worms256
- 193.30.18.0 Worms256
Networks of similar size
- AS1853 ACONET
334,080 - AS44869 FIBIA P/S
333,824 - AS14638 Liberty Communications of Puerto Rico LLC
333,824 - AS4818 DiGi Telecommunications Sdn Bhd., Digi Internet Exchange
332,800 - AS11814 Distributel Communications Limited
332,544 - AS239 University of Toronto331,264
- AS59 University of Wisconsin Madison
331,008 - AS393952 Service Alberta331,008
IPv4 prefixes
Questions and answers
Who owns AS2857?
Autonomous system AS2857 is operated by Johannes Gutenberg-Universitaet Mainz.
How many IP addresses does AS2857 have?
The network holds 332,800 IPv4 addresses in 10 prefixes, plus 1 IPv6 ranges.
Which country is AS2857 in?
The main country is Germany.
How big is AS2857?
By IPv4 addresses it ranks #721 worldwide.
What is the largest address block of AS2857?
143.93.0.0 to 143.93.255.255, 65,536 addresses.