AS11980 BDO-USA-LLP

BDO-USA-LLP is BDO USA, the American member firm of the BDO international

accounting and advisory network — audit, tax and consulting services. This is a

professional-services enterprise, not a telecom or hosting operator.

What it's used for

• Corporate enterprise networking. The AS announces two adjacent /23s, 162.249.80.0/23 and 162.249.82.0/23 — 1,024 addresses in total — both registered in ARIN directly to BDO USA. Holder and registrant are the same organization, so there is no third-party or leased space involved.
• No IPv6 is announced from this AS.

Notable

• Two prefixes and two observed neighbours is a deliberately minimal footprint: the firm runs BGP so that a small block of internet-facing services (very likely edge, remote-access and mail infrastructure for a distributed professional-services firm) stays reachable if one upstream fails. Everything else a firm this size runs will sit behind SaaS providers and its upstreams' addressing, which is why the routed footprint is so much smaller than the organization.
• The neighbour count is the honest role signal here. A network that peered widely would show dozens or hundreds of neighbours; two means BDO buys transit and sells nothing.

Interesting

• Both prefixes come from 162.249.0.0/16, a block ARIN issued well after the early-internet era, which is a reminder that a low AS number says nothing about the age of the network behind it — the address space is modern even if the ASN is not.