AS3912 CHECS

CHECS - CHECS · registered in the United States

IPv4 addresses8,94238 prefixes · <0.001% of announced IPv4

Rank in United States#3,136largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#9,829of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)1 prefixes

CountryUnited States18,679 ASNs registered there

Open AS3912 in ASN lookup Look up an IP in this network (63.225.1.1) All networks in United States

IPv4 prefixes

All 38 prefixes, in address order.

63.225.1.0/24
192.65.78.0/26
192.65.78.64/28
192.65.78.80/29
192.65.78.88/30
192.65.78.96/27
192.65.78.128/25
192.88.137.0/24
192.88.138.0/23
198.59.187.0/24
204.134.48.0/23
204.134.50.0/24
204.134.55.0/24
204.134.56.0/23
204.134.66.0/24
204.134.102.0/23
206.206.128.0/21
206.206.145.0/26
206.206.145.64/27
206.206.145.96/29
206.206.145.104/30
206.206.145.120/29
206.206.145.128/25
206.206.146.0/23
206.206.148.0/22
206.206.153.0/24
206.206.154.0/24
206.206.155.0/25
206.206.155.128/28
206.206.155.144/30
206.206.155.148/31
206.206.155.151/32
206.206.155.153/32
206.206.155.154/31
206.206.155.156/30
206.206.155.160/27
206.206.155.192/26
216.161.32.0/23

IPv6 prefixes

All 1 prefix.

2607:7840::/32

Similar-sized networks in United States

ASNNameIPv4 addresses

AS397642#3133 AUCAL-397642 - Vestis Services, LLC8,960

AS398194#3134 UPRISE - Uprise LLC8,960

AS398643#3135 SRU-ASN - Slippery Rock University of Pennsylvania8,960

AS4906#3137 FDS-01 - Frontline Communications8,704

AS2721#3138 SCLR - CULR, LLC8,704

AS17139#3139 COLORADOCOLO - Corporate Colocation Inc.8,704

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