AS15221 — STRATUSIQ

AS15221 announces 4 IPv4 prefixes covering 25,856 addresses and 1 IPv6 prefixes.

About this network

Thirty-one prefixes under one netname, and one block registered on another continent's registry.

What it's used for

• A regional internet provider. Thirty-one IPv4 prefixes and one IPv6 prefix announced from the United States, covering twenty-five thousand addresses, with eight observed BGP neighbours.

Notable

• Nearly every block carries the company name as its netname, unchanged and with nothing appended, which is unusually consistent for a network with this many prefixes.
• One block breaks that pattern with a netname naming a fibre product, a three-letter site code, a type word and a counter.
• One block is registered to an unrelated company under a netname ending in the name of a regional internet registry that does not cover the United States, so the space is administered by one registry and announced from another region entirely.
• Eighteen addresses were queried for reverse DNS and none returned a name.
• The prefixes range from /20 down to /24 and cluster in two ranges.

Interesting

• Address space registered in one region and routed in another is legal and increasingly common: the blocks are leased from holders in registries where allocations were made late and generously. It breaks every tool that infers geography from the registry rather than the routing.
• One netname repeated across thirty blocks means the registry cannot tell them apart, and the single block with a descriptive netname shows the operator knows how to write one when it matters.
• Eight upstreams and no reverse names at all: a provider whose public record is its routing.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 66.113.0.0/19
• 154.198.32.0/22
• 192.133.104.0/24
• 209.248.64.0/18
• 2605:90c0::/32

Upstream networks

• AS7029 Windstream Communications LLC
• AS33302 Data102

Downstream networks

• AS7832 PCI Fiber, LLC
• AS26399 Broadmoor Hotel Inc
• AS32142 Academy School District 20
• AS398996 California Casualty Management Company
• AS31756 City of Colorado Springs

Adjacent networks

• AS33302 Data102
• AS7029 Windstream Communications LLC
• AS7832 PCI Fiber, LLC
• AS26399 Broadmoor Hotel Inc
• AS32142 Academy School District 20
• AS398996 California Casualty Management Company
• AS31756 City of Colorado Springs
• AS6461 Zayo Bandwidth