AS11878 TZULO

TZULO is tzulo, inc., a Chicago-based dedicated-server, colocation and cloud

hosting provider that has been trading since the early 2000s and runs its own

network out of Chicago and Los Angeles facilities. This is a hosting network, and

the routing evidence says so plainly.

What it's used for

Server hosting. RIS sees 195 IPv4 prefixes totalling about 114,688 addresses plus

33 IPv6 prefixes, against only 9 observed neighbours. That ratio is the tell:

a wholesale carrier of this address size would peer with hundreds of ASes. Nine

upstreams and a large, heavily fragmented address pool is a content-and-servers

network buying transit, not selling it. Every reverse-DNS name sampled follows the

same first-party template, static-<ip>.cust.tzulo.com, which is a hosting

provider's default naming for customer static assignments.

Notable

• The prefix registrations look scattered at first glance: alongside blocks registered to tzulo itself, RDAP returns small LLCs and individual people as the registered orgs of /24s that tzulo announces. Read against the rest of the evidence this is the IPv4 leasing market, not brokered proxy space. tzulo is a real, findable business with public facilities and pricing, and the leased-in blocks wear tzulo's own cust.tzulo.com reverse DNS rather than a stranger's.
• The fragmentation is worth understanding for anyone geolocating an address here: the space was assembled from many small acquisitions and transfers over time, so neighbouring /24s can have very different registration histories.