AS46543 University of Maryland, Baltimore

UMB - University of Maryland, Baltimore · registered in the United States

IPv4 addresses65,5361 prefixes · 0.002% of announced IPv4

Rank in United States#1,268largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#3,372of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS46543 in ASN lookup Look up an IP in this network (134.192.0.1) All networks in United States

IPv4 prefixes

All 1 prefix, in address order.

134.192.0.0/16

Similar-sized networks in United States

ASNNameIPv4 addresses

AS46470#1265 SKIDMORE-I2-AS - Skidmore College65,536

AS46483#1266 RGHS - Unity Health System65,536

AS46520#1267 CA-DOJ - California Department of Justice65,536

AS46564#1269 NORDST-AS - Nordstrom, Inc.65,536

AS46662#1270 BSU-AS - Boise State University65,536

AS46905#1271 UMASS-LOWELL - University of Massachusetts - Lowell65,536

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