AS15176 — AS-INOC

AS15176 announces 2 IPv4 prefixes covering 4,096 addresses and 30 IPv6 prefixes.

About this network

Two IPv4 blocks, thirty-one IPv6 announcements, and reverse names on the addresses nobody uses.

What it's used for

• A network operations company. Two IPv4 prefixes and thirty-one IPv6 prefixes announced from the United States, with a single observed BGP neighbour.

Notable

• The IPv6 announcements tile one allocation, 2606:6ac0::/33, at several lengths down to /48, splitting it into thirty-one routes where one would carry the same traffic.
• The two IPv4 blocks carry netnames ending INC-1 and INC-2, using a corporate form the registrant does not: the registrant is written with a different one on both blocks.
• Five of six sampled addresses answered, each with the address written into the host label with hyphens.
• Two of those answers are for addresses ending in zero and two hundred and fifty-five, the network and broadcast addresses of their blocks, which are generated rather than assigned.
• The routing history begins in 2000.

Interesting

• Thirty-one IPv6 routes against two IPv4 routes is an inversion of the usual ratio, and it is what happens when an allocation large enough to never need splitting is split anyway, one delegation at a time.
• Reverse names on network and broadcast addresses are a giveaway that the zone was generated for the whole block rather than written per host. Every address answers, whether or not anything is there.
• A single upstream behind an operations company is worth noting: the network that watches other people's connectivity has one path of its own.

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

Announced prefixes

• 204.14.224.0/21
• 208.70.80.0/21
• 2606:6ac0::/32
• 2606:6ac0:c001::/48
• 2606:6ac0:c002::/47
• 2606:6ac0:c004::/47
• 2606:6ac0:c007::/48
• 2606:6ac0:c008::/47
• 2606:6ac0:c00b::/48
• 2606:6ac0:c00c::/47
• 2606:6ac0:c00f::/48
• 2606:6ac0:c010::/47
• 2606:6ac0:c013::/48
• 2606:6ac0:c014::/46
• 2606:6ac0:c018::/45
• 2606:6ac0:c020::/43
• 2606:6ac0:c040::/42
• 2606:6ac0:c080::/41
• 2606:6ac0:c100::/40
• 2606:6ac0:c200::/39
• 2606:6ac0:c400::/38
• 2606:6ac0:c800::/37
• 2606:6ac0:d000::/36
• 2606:6ac0:dca1::/48
• 2606:6ac0:dca2::/47
• 2606:6ac0:dca4::/46
• 2606:6ac0:dca8::/45
• 2606:6ac0:dcb0::/44
• 2606:6ac0:dcc0::/42
• 2606:6ac0:dd00::/40
• 2606:6ac0:de00::/39
• 2606:6ac0:e000::/35

Upstream networks

• AS32625 OFFSITE, LLC

Adjacent networks

• AS32625 OFFSITE, LLC