AS10859 GDIT-CSRA-01

GDIT-CSRA-01 is held by General Dynamics Information Technology (GDIT), the IT services arm of General Dynamics. The CSRA in the handle is the trace of CSRA Inc., the government-IT contractor GDIT absorbed, whose own lineage runs back through Computer Sciences Corporation's public-sector business — the handle records the acquisition, and the AS came with it.

What it's used for

A small, single-homed contractor network. RIS sees 6 announced IPv4 prefixes — all /24s out of 155.95.0.0, 1,536 addresses in total — no IPv6, and just 1 observed BGP neighbour.

One neighbour is the significant number. This AS does not multihome and does not peer; it hangs off a single upstream, which means it exists to originate a specific slice of address space rather than to carry traffic or make routing decisions. Six contiguous /24s announced individually rather than as one aggregate is the pattern of separately delegated segments — the way a services integrator carves space per programme, per enclave or per customer engagement, keeping each block independently routable so it can be moved or withdrawn on its own.

Notable

Classify by what the space carries, not by what the holder is. GDIT is a large federal contractor and much of its work is for government agencies, but this AS is the contractor's own corporate-registered space, not a government network, and the evidence does not show which of GDIT's programmes sit behind it.

No reverse DNS was returned for the twelve addresses sampled here. That is a sample, not a finding — it is not evidence of an undelegated zone and certainly not of a deliberate posture, so nothing is built on it.