AS31900 City of Thornton

CITYOFTHORNTON - City of Thornton · registered in the United States

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in United States#15,087largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#65,340of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS31900 in ASN lookup Look up an IP in this network (199.117.212.1) All networks in United States

IPv4 prefixes

All 1 prefix, in address order.

199.117.212.0/24

Similar-sized networks in United States

ASNNameIPv4 addresses

AS31861#15084 WTAMU - West Texas A&M University256

AS31870#15085 ASN-BELL3 - Bell Bank256

AS31887#15086 TRINITYHEALTH-MIDATLANTIC - Trinity Health Corporation256

AS31904#15088 NCWCD-80513 - Northern Water256

AS31927#15089 MPR-ASSOCIATES - MPR Associates256

AS31935#15090 APOG-NORFOLK - Apogee Telecom Inc.256

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