AS19661 — SUSQ-BALA - Susquehanna International Group, LLP

AS19661 announces 8 IPv4 prefixes covering 65,280 addresses and 1 IPv6 prefixes.

About this network

The AS handle SUSQ-BALA is held by Susquehanna International Group, LLP.

What it's used for

• The address space carries internal corporate infrastructure, evidenced by netnames consistently set to SIG and registrants listed as Susquehanna Investment Group, GP; DNSAdmins; Network Operations Center.
• The AS announces 65,280 IPv4 addresses across 33 prefixes and 1 IPv6 prefix, while maintaining only 7 observed neighbours; this high address-to-neighbour ratio indicates a private corporate estate rather than a transit or access provider.

Notable

• Registrants align with the announcer, with all sampled prefixes registered to Susquehanna Investment Group, GP.
• The address inventory is finely subdivided into numerous /20, /21, /22, and /23 blocks within the 141.162.0.0/16 range, reflecting site-by-site segmentation typical of a large financial institution's internal network.

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

Announced prefixes

• 141.162.0.0/17
• 141.162.128.0/20
• 141.162.144.0/21
• 141.162.152.0/22
• 141.162.156.0/23
• 141.162.158.0/24
• 141.162.160.0/19
• 141.162.192.0/18
• 2602:808:c000::/48

Upstream networks

• AS3356 Level 3 Parent, LLC
• AS6939 Hurricane Electric LLC
• AS6461 Zayo Bandwidth
• AS9255 Singapore Telecom
• AS38195 Superloop
• AS46887 Crown Castle Fiber LLC
• AS2764 AAPT Limited

Adjacent networks

• AS3356 Level 3 Parent, LLC
• AS6939 Hurricane Electric LLC
• AS6461 Zayo Bandwidth
• AS9255 Singapore Telecom
• AS38195 Superloop
• AS46887 Crown Castle Fiber LLC
• AS2764 AAPT Limited

Routing security

• RPKI: 0 valid, 0 invalid and 14 not-found announcements; 3 ROAs.
• ASPA: none published.
• IRR: 29% of announcements registered; 11 route objects.
• Listed in as-sets: AS-ANC-CUSTOMER-PROXY-REGISTER, AS-BTIRE, AS-CCF, AS-CCF-TEST, AS-EQUINIX-HK, AS-HURRICANE, AS-PACNET-CUSTOMER-PROXY-REGISTER, AS-PACNET-DOWNSTREAM-AU, AS-PNAPNYM, AS-SUPERLOOP-CUST, AS-TRANSROUTE-SPEC, AS-WINDSTREAM-CUST, AS-XO-B, AS-YIPES, AS16657:AS-CUST, AS24130:AS-CUSTOMERS, AS2764:AS-BGP-CUSTS, AS2764:AS-CUSTOMERS, AS2764:AS-CUSTOMERS-2, AS2764:AS-CUSTOMERS-TMP, AS7606:AS-SA-IX, AS8218:AS-CUSTOMERS.

Internet exchanges

• Equinix Internet Exchange Ashburn — Ashburn, United States
• Equinix Internet Exchange Chicago — Chicago, United States
• Equinix Internet Exchange New York — New York, United States