AS3595 zColo

DATABANK-ZCOLO - zColo · registered in the United States

IPv4 addresses3,3285 prefixes · <0.001% of announced IPv4

Rank in United States#5,153largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#17,582of 79,396 networks with IPv4

IPv61 x /481 prefixes

CountryUnited States18,679 ASNs registered there

Open AS3595 in ASN lookup Look up an IP in this network (64.64.222.1) All networks in United States

IPv4 prefixes

All 5 prefixes, in address order.

64.64.222.0/23
75.127.82.0/24
199.16.45.0/24
205.214.72.0/21
207.210.105.0/24

IPv6 prefixes

All 1 prefix.

2606:ef80:6::/48

Other ASNs named zColo

5 other networks use the same organisation name; together with AS3595 they announce 99,328 IPv4 addresses.

ASNNameIPv4 addresses

AS13354ZC38-AS1 - zColo US52,480

AS27325DATABANK-ZCOLO - zColo US35,072

AS32952ZC38-AS2 - zColo US4,864

AS14313DATABANK-ZCOLO - zColo US3,584

AS16626DATABANK-ZCOLO - zColo USIPv6 only

Similar-sized networks in United States

ASNNameIPv4 addresses

AS22241#5150 IC2NET - IC2NET3,328

AS198178#5151 INC-PARTNERS-365 365.partners INC3,328

AS254#5152 OPENTEXT - Attachmate Corp.3,328

AS11278#5154 NINTENDO - Nintendo Of America inc.3,328

AS19574#5155 CSC - Corporation Service Company3,328

AS22931#5156 HURONCG - Huron Consulting Group, Inc.3,328

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