AS44022 — BARCLAYS-RETAIL Barclays Bank PLC

AS44022 announces 8 IPv4 prefixes covering 12,032 addresses and 0 IPv6 prefixes.

About this network

BARCLAYS-RETAIL is the autonomous system for Barclays Bank PLC.

What it's used for

• The address space carries internal corporate infrastructure, evidenced by netnames such as BARCLAYS-CIBWM, BARCLAYS-SINGAPORE, and BARCLAYS-RBB.
• The AS announces 12,032 IPv4 addresses across 10 prefixes with only 4 observed neighbours, indicating a small, internal corporate estate rather than a transit or access network.
• Traffic from this AS consists of internal banking operations, including corporate and investment banking systems and regional office backhaul.

Notable

• All registrants are listed as unknown in the RDAP data, but the netnames consistently identify Barclays entities.
• The inventory is finely subdivided into specific business units and geographic locations, such as Singapore and CIBWM, reflecting site-by-site segmentation of the corporate network.

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

Announced prefixes

• 141.228.196.0/23
• 141.228.198.0/24
• 141.228.200.0/21
• 141.228.240.0/20
• 157.83.104.0/21
• 157.83.112.0/21
• 167.203.64.0/23
• 167.203.80.0/23

Upstream networks

• AS28690 Barclays Bank PLC
• AS32787 Akamai Technologies, Inc.
• AS6453 TATA COMMUNICATIONS (AMERICA) INC
• AS8220 COLT Technology Services Group Limited

Adjacent networks

• AS28690 Barclays Bank PLC
• AS32787 Akamai Technologies, Inc.
• AS6453 TATA COMMUNICATIONS (AMERICA) INC
• AS8220 COLT Technology Services Group Limited

Routing security

• RPKI: 0 valid, 0 invalid and 20 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 95% of announcements registered; 140 route objects.
• Listed in as-sets: AS-BTGB-CUST, AS-CWCUSTEU, AS-GLOBEINTERNET-CLIENTS, AS-GLOBEINTERNET-CLIENTS, AS-IIJ, AS-IIJ6, AS-KDDCUSTOMER2, AS-PROLE, AS-TELSTRA-INTL-CUSTOMERS, AS2497:AS-IIJ, AS2497:AS-IIJ6, AS28690:AS-BUK, AS8220:AS-COLTSG.