Johns Hopkins University Applied Physics Laboratory operates AS77: 3 IPv4 prefixes covering 66,048 addresses, most of them in 
United States.
By IPv4 addresses the network ranks #2,697 worldwide and #877 of 18,202 networks in United States.
The largest block is 128.244.0.0 to 128.244.255.255 with 65,536 addresses, geolocated to Laurel.
- IPv4 addresses
- 66,048
- IPv4 prefixes
- 3
- World rank
- #2,697
Addresses by country
- United States 100%
Largest blocks
- 128.244.0.0 Laurel65,536
- 204.9.130.0 Sterling256
- 204.9.128.0 Ashburn256
Networks of similar size
- AS21491 Uganda Telecom
66,048 - AS150359 Cable Television TOYAMA Inc.
66,048 - AS102 U.S. National Science Foundation66,048
- AS20 University of Rochester66,048
- AS55194 Bowling Green State University66,048
- AS7276 University of Houston66,048
- AS7050 University of Wisconsin - Milwaukee66,048
- AS11279 George Mason University66,048
IPv4 prefixes
Questions and answers
Who owns AS77?
Autonomous system AS77 is operated by Johns Hopkins University Applied Physics Laboratory.
How many IP addresses does AS77 have?
The network holds 66,048 IPv4 addresses in 3 prefixes.
Which country is AS77 in?
The main country is United States.
How big is AS77?
By IPv4 addresses it ranks #2,697 worldwide.
What is the largest address block of AS77?
128.244.0.0 to 128.244.255.255, 65,536 addresses.