AS398813 Millersville University of Pennsylvania

MILLERSVILLE-UNIVERSITY - Millersville University of Pennsylvania · registered in the United States

IPv4 addresses66,04810 prefixes · 0.002% of announced IPv4

Rank in United States#902largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#2,708of 79,396 networks with IPv4

IPv64,096 x /481 prefixes

CountryUnited States18,679 ASNs registered there

Open AS398813 in ASN lookup Look up an IP in this network (166.66.0.1) All networks in United States

IPv4 prefixes

All 10 prefixes, in address order.

166.66.0.0/17
166.66.128.0/18
166.66.192.0/21
166.66.200.0/23
166.66.203.0/24
166.66.204.0/22
166.66.208.0/20
166.66.224.0/19
192.206.29.0/24
204.235.168.0/23

IPv6 prefixes

All 1 prefix.

2607:2240:5000::/36

Similar-sized networks in United States

ASNNameIPv4 addresses

AS31967#899 FLTECH - Florida Institute of Technology66,048

AS55194#900 BGSU - Bowling Green State University66,048

AS398663#901 SHIPPENSBURG-UNIVERSITY-01 - Shippensburg University66,048

AS20#903 UR - University of Rochester66,048

AS102#904 NSF-HQ-AS - U.S. National Science Foundation66,048

AS317#905 DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD)66,048

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources