AS10100 — UBSGROUPAG-AS-AP - UBS Group AG

AS10100 announces 20 IPv4 prefixes covering 13,824 addresses and 5 IPv6 prefixes.

About this network

UBSGROUPAG-AS-AP belongs to UBS Group AG, the Swiss global bank. This is a corporate enterprise AS: the bank routing its own offices, trading floors and data centres, with no product sold over it.

What it's used for

UBS's internal and internet-facing corporate network. The AS announces 71 IPv4 prefixes totalling 13,824 addresses plus 6 IPv6 prefixes. The shape of the announcement is the giveaway — almost every prefix is a /23, carved out of a handful of large legacy blocks (138.206.0.0/16, 147.60.0.0/16) plus APNIC space in 202.1.0.0/16. A bank subnets its estate that way: one /23 per site, per campus or per security zone, each announced separately so it can be steered independently. An ISP does not build a routing table out of seventy near-identical /23s.

Notable

This is an enterprise network, not a carrier or a hosting provider. Roughly 13,800 addresses against just 15 observed BGP neighbours is the classic corporate silhouette: a couple of transit providers in each region and nothing else. A wholesale carrier at this size would peer with hundreds of ASes. The -AP suffix on the handle records only that the number was issued by APNIC for UBS's Asia-Pacific operations; the same AS carries the bank's European and North American legacy space.

Interesting

Address space registered to a bank is normally staff and back-office space, so it should be geolocated to UBS premises rather than to customers. Treat traffic from it as originating with the institution itself.

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

Announced prefixes

• 138.206.38.0/23
• 138.206.40.0/23
• 138.206.148.0/22
• 138.206.152.0/23
• 138.206.200.0/22
• 138.206.204.0/23
• 138.206.236.0/22
• 138.206.240.0/23
• 138.206.248.0/22
• 147.60.4.0/22
• 147.60.12.0/23
• 147.60.18.0/23
• 147.60.20.0/23
• 147.60.24.0/22
• 202.1.66.0/23
• 202.1.84.0/22
• 202.1.90.0/23
• 202.1.98.0/23
• 202.1.110.0/23
• 202.1.112.0/23
• 2404:7cc0:7f00::/47
• 2404:7cc0:7f04::/47
• 2a02:c187:4f00::/48
• 2a02:c187:4f04::/48
• 2a02:c187:5f04::/48

Upstream networks

• AS32787 Akamai Technologies, Inc.
• AS4637 Telstra Global
• AS4657 StarHub Ltd
• AS3491 PCCW Global (HK) Ltd.
• AS2516 KDDI CORPORATION
• AS4812 China Telecom (Group)
• AS4847 China Networks Inter-Exchange
• AS2914 NTT America, Inc.
• AS4808 China Unicom Beijing Province Network
• AS17621 China Unicom Shanghai network
• AS703 Verizon Business

Downstream networks

• AS4410 Credit Suisse Group

Adjacent networks

• AS32787 Akamai Technologies, Inc.
• AS4410 Credit Suisse Group
• AS4637 Telstra Global
• AS4657 StarHub Ltd
• AS3491 PCCW Global (HK) Ltd.
• AS2516 KDDI CORPORATION
• AS4812 China Telecom (Group)
• AS4847 China Networks Inter-Exchange
• AS2914 NTT America, Inc.
• AS4808 China Unicom Beijing Province Network
• AS17621 China Unicom Shanghai network
• AS703 Verizon Business

Routing security

• RPKI: 0 valid, 0 invalid and 73 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 99% of announcements registered; 184 route objects.
• Listed in as-sets: AS-ANC-CUSTOMER-PROXY-REGISTER, AS-CTBC-CUSTOMERS231, AS-CTBJ, AS-CTI-TELECOM, AS-CTSH, AS-HKBN-TRANSIT, AS-HKTCUSTOMER, AS-HURRICANEV6, AS-KDD, AS-KDDCUSTOMER2, AS-KDDI6, AS-OPTUS, AS-PROLE, AS-SH-CUST, AS-TELSTRA-INTL-CUSTOMERS, AS-VSNL-IN, AS1221:AS-TI-4637-AU-NZ, AS2764:AS-CUSTOMERS-APF:AS1239, AS2764:AS-CUSTOMERS-APF:AS3643, AS2764:AS-CUSTOMERS:AS3643, AS2764:AS-TRANSIT:AS3643, AS2914:AS-ASIA, AS2914:AS-ASIA-V6, AS3491:AS-CUSTOMERS-AP, AS3491:AS-CUSTOMERS-TEST.