AS6556 AIRGAPPED

AIRGAPPED is a small independent network operating under the registrant AZSIGNSHOP LLC of Flagstaff, Arizona. Despite the registrant name, the network trades as airgapped and is run as a personal/hobbyist autonomous system rather than as part of a sign-making business.

What it's used for

AS6556 originates its own 66.248.232.0/23 plus four /24s out of 44.0.0.0/8, the AMPRNet range administered by Amateur Radio Digital Communications. Transit and peering come from Hurricane Electric, Packetframe and other small operators, and the AS is present at community internet exchanges including FCIX, ARIX and EVIX. There is no reverse DNS published on the announced space.

Notable

The registrant name is a trap. AZSIGNSHOP LLC is a real Flagstaff sign shop, but the ASN's technical contacts, abuse role and network branding are all airgapped, and the routing footprint is that of an enthusiast network, not a print business.

Networks like this one, holding a handful of /24s and peering at volunteer-run exchanges, do not fit the usual hosting/ISP/enterprise buckets. The presence of AMPRNet space alongside commercially registered space is a further sign of a hobbyist rather than a commercial operation.

The number is low but the registration is recent: ARIN shows AS6556 registered in 2019, so it was reissued, not held from the early internet.