AS9923 AS-SIMPLE Simple Information, Inc.

AS9923 (AS-SIMPLE) is held by Simple Information, Inc., a Taipei-based network operator. Public information about the company is thin — its own site is not currently serving — so the useful evidence here is the routing and the reverse DNS, which between them sketch a small provider running both a cloud product and a consumer broadband brand.

What it's used for

RIS sees 5 IPv4 prefixes carrying 1,280 addresses, one IPv6 prefix (2001:df2:45c0::/47), and a single observed BGP neighbour. That is a very small inventory behind one upstream, so this is a provider serving its own customers, not a carrier.

The reverse DNS is where the business shows through, and it points three ways at once. Addresses in 36.50.249.0/24 resolve as 36-50-249-5.cloud.simple.taipei — the operator's own domain, with cloud in the name, so that block is a hosting or virtual-machine platform. Addresses in 160.30.98.0/24 resolve as 160-30-98-5.dynamic-ip.formosabroadband.net, a dynamic consumer access pool under a separate broadband brand. A third sampled address answers under lazco.tw. So a 1,280-address network is simultaneously carrying cloud instances and dynamically assigned broadband subscribers.

That combination — a cloud block and a dynamic-IP block in the same tiny ASN — is worth flagging for anyone using this network for geolocation or abuse attribution. The two populations behave completely differently and share one AS number.

Notable

• The v4 space is drawn from three unrelated parents (36.50, 160.30, 163.128), and 163.128.76.0 is announced both as a /23 and as a /24.
• The company has been listed with a presence in Hong Kong as well as Taipei, so the footprint may not be Taiwan-only.