AS6303 — BARCLAYS-CAPITAL

AS6303 announces 13 IPv4 prefixes covering 7,936 addresses and 0 IPv6 prefixes.

About this network

The network of Barclays Capital, the investment-banking arm of the British bank Barclays, registered under the handle BARCLAYS-CAPITAL from New York City.

What it's used for

• Enterprise and trading connectivity for an investment bank: corporate systems, market-data feeds, and links to exchanges, counterparties and financial extranets.
• Its several thousand IPv4 addresses support the bank's own offices and applications; nothing here is sold on to third parties.

Notable

• A financial-institution network. Address space of this kind is typically tightly firewalled and rarely originates general-purpose internet traffic, so it is unusual to see it in ordinary web logs.
• ARIN records the assignment in early 1996, when large banks were among the first enterprises to run their own autonomous systems for resilient, multihomed connectivity.

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

Announced prefixes

• 63.78.242.0/24
• 146.127.40.0/23
• 146.127.61.0/24
• 146.127.223.0/24
• 146.127.224.0/21
• 146.127.240.0/22
• 146.127.244.0/24
• 146.127.246.0/24
• 157.83.142.0/23
• 167.203.48.0/22
• 167.203.60.0/22
• 192.107.28.0/24
• 192.147.57.0/24

Upstream networks

• AS32787 Akamai Technologies, Inc.
• AS6461 Zayo Bandwidth
• AS14733 Barclays Capital Inc.
• AS701 Verizon Business

Downstream networks

• AS14733 Barclays Capital Inc.

Adjacent networks

• AS32787 Akamai Technologies, Inc.
• AS6461 Zayo Bandwidth
• AS14733 Barclays Capital Inc.
• AS701 Verizon Business

Routing security

• RPKI: 0 valid, 0 invalid and 45 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 42% of announcements registered; 86 route objects.
• Listed in as-sets: AS-10021ARCSTAR, AS-ANC-CUSTOMER-PROXY-REGISTER, AS-GBLX, AS-HKT-AS4515, AS-HKT-NETVIGATOR, AS-IIJ, AS-KDD, AS-KDDCUSTOMER2, AS-KORNETBGP, AS-NWN-TRANSIT, AS-PACNET-CUSTOMER-PROXY-REGISTER, AS-PNAPNYC, AS-PNAPNYM, AS-PNAPTOK, AS-PROLE, AS-PSINETUS-MC, AS-TELSTRA-INTL-CUSTOMERS, AS-TVN, AS-XO-B, AS2497:AS-IIJ, AS9498:AS-BHARTI-IN.