AS9935 AGNSCUS-HK AGNS Customer AS

AS9935 (AGNSCUS-HK) is an AT&T Global Network Services customer AS. AGNS is AT&T's managed global enterprise networking arm — the business that runs corporate VPNs, managed WAN and dedicated internet access for multinationals — and this ASN is one of the numbers it uses to originate routes on behalf of customers in its Hong Kong / Asia-Pacific footprint.

What it's used for

The routing evidence is about as small as an AS gets: RIS sees exactly one IPv4 prefix, 193.149.194.0/24 (256 addresses), no IPv6, and one observed neighbour. A single upstream and a single /24 is the classic shape of an AS that exists purely so a route can be originated with distinct origin attribution, not because the operator needs an independent routing policy.

The prefix itself is the confirming detail. 193.149.194.0/24 sits inside a RIPE allocation registered to ORG-AGNS1-RIPE — AT&T Global Network Services' own RIPE organisation object — even though the ASN itself is registered through APNIC with an AT&T Asia-Pacific contact. European-registered AT&T address space, announced by a Hong Kong-handled AT&T ASN, is exactly what a global managed-network provider's estate looks like: the address inventory and the routing entity are administered in different regions of the same company.

Notable

• The -CUS- in the handle is customer, not a company name. Shared "customer AS" numbers are a long-standing AGNS practice for enterprise sites that need BGP but not their own ASN.
• Registered under APNIC with AT&T Asia-Pacific contacts while announcing RIPE-registered AT&T space — a cross-RIR arrangement that looks odd but is internally consistent within one company.
• Not an eyeball or hosting network. Nothing here serves the public internet; it is enterprise connectivity plumbing.