AS10959 BAC-NPC

BAC-NPC is registered to Bank of America, National Association, the banking subsidiary of one of the largest financial institutions in the United States. The AS itself is tiny: RIS observes 2 IPv4 prefixes covering 512 addresses, no IPv6, and 1 observed neighbour.

What it's used for

Two /24s and a single upstream is not the whole of Bank of America's internet presence. A firm of that size runs many autonomous systems and holds far more address space than this; what you are looking at here is one small, separately routed corner of it. Both prefixes (192.136.66.0/24 and 192.104.169.0/24) are legacy class-C space, and the single observed neighbour means this AS is reached through one provider rather than being part of the bank's multihomed core.

Notable

Segmented, minimally routed ASNs like this are common in banking. Regulated financial institutions tend to keep specific functions, acquired business units, or partner-facing connections on their own numbering and their own AS, so that the routing and the security boundary line up with the compliance boundary. What exactly sits behind this particular pair of prefixes is not something the routing data reveals, and this card does not speculate.

Interesting

The address blocks are early class-C assignments, meaning they predate CIDR and almost certainly predate the mergers that produced the bank in its current form. Financial-sector address space is often a fossil record of the institutions that were absorbed along the way.