AS6685 — BTUKINTERNAL Internal Use BT AS

AS6685 announces 1 IPv4 prefixes covering 4,096 addresses and 1 IPv6 prefixes.

About this network

GRAPEVINE is held by Grapevine Labs LLC, a US company registered in Albany, New York. The AS number was reissued — for many years it was BT's BTUKINTERNAL internal-use AS, and it was re-registered through ARIN in August 2025 to its current holder.

What it's used for

• Announces one IPv4 block, 66.6.64.0/20, and one IPv6 block, 2604:1c60::/32, both ARIN registrations that post-date the ASN handover.
• Reaches the internet through a single upstream. The address space carries no reverse DNS, and the company publishes no description of the service it runs on it.

Notable

• A worked example of a low AS number that says nothing about age. The number is early-1990s vintage, but the holder is a 2025 company, and the network behind it has no relation to the original assignee.
• Because there is no public service description, no rDNS and no operator site, the purpose of this network cannot be stated with confidence. Treat any category label attached to AS6685 elsewhere as a guess.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 66.6.64.0/20
• 2604:1c60::/32

Upstream networks

• AS8002 Stealth Communications Services, LLC

Adjacent networks

• AS8002 Stealth Communications Services, LLC