AS9651 THECITYBANK-BD Jibon Bima Tower 4th Floor

AS9651 (THECITYBANK-BD) is held by The City Bank Limited, a commercial bank in Bangladesh. The registry object's odd-looking name — "Jibon Bima Tower (4th Floor)" — is simply the bank's street address: Jibon Bima Tower, 10 Dilkusha C/A, Motijheel, Dhaka, which is its principal office.

What it's used for

This is a bank's own enterprise network. RIS sees 4 IPv4 prefixes totalling 1,024 addresses and no IPv6, announced through 3 observed neighbours. The prefixes form two contiguous pairs — 103.29.104.0/24 and 103.29.105.0/24, plus 103.250.42.0/24 and 103.250.43.0/24 — so the whole inventory is two /23-sized assignments split into /24s, both out of APNIC's 103.0.0.0/8 block.

A thousand addresses behind three upstreams is not a service-provider shape; it is a corporate multihoming shape. For a bank the motivation is availability rather than capacity: branch connectivity, internet banking front-ends, ATM and card-switch links all need to stay reachable if one Bangladeshi transit provider has a bad day, and owning the ASN and the addresses means the bank can move between carriers without renumbering anything. The very small address count also implies most of the bank's estate is behind NAT or on private networks, with only public-facing services and gateways occupying routable space.

Notable

• The AS name looks like a building, not a company. It is a common APNIC-object quirk where the address line has ended up as the org description.
• Both blocks come from 103/8, a relatively late APNIC allocation, so the addressing is newer than the low ASN suggests.