AS15723 — AZERONLINE

AS15723 announces 22 IPv4 prefixes covering 15,104 addresses and 0 IPv6 prefixes.

About this network

The reverse names publish VLAN numbers, and one netname names a block it is not on.

What it's used for

• A national provider. Twenty-two IPv4 prefixes announced from Azerbaijan, no IPv6, fifteen thousand addresses, through a single observed BGP neighbour.

Notable

• Five of the six answering names are the word for a virtual LAN, a number and the last octet, and that number is the address's own third octet, so the internal segment identifier is published with every address.
• The sixth names a point of presence and the city it sits in: pop-ganja-254.azeronline.com.
• The twenty-two blocks use six netname conventions: a bare brand, the brand with a network suffix, that suffix with a serial number, that suffix with the block's own octets, and a country code with a date in two variants.
• One of the octet-bearing netnames does not match its block. The block's second octet is missing from the name and a different number stands in its place.
• Only the dated blocks name the company. The rest list an administrative object and an abuse contact called an email box.
• Eighteen addresses were queried and six returned a name.

Interesting

• Fifteen thousand addresses behind one upstream is the whole network depending on one path. For a provider of this size that is the single most consequential fact in the record.
• Publishing VLAN numbers hands a reader the internal segmentation for free. Nothing is exposed by it directly and it removes the guesswork from mapping the network.

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

Announced prefixes

• 5.178.1.0/24
• 5.178.4.0/22
• 5.178.9.0/24
• 5.178.10.0/23
• 5.178.12.0/22
• 46.23.100.0/22
• 46.23.111.0/24
• 62.217.128.0/22
• 62.217.132.0/24
• 62.217.134.0/24
• 62.217.138.0/24
• 62.217.140.0/23
• 62.217.142.0/24
• 62.217.144.0/20
• 88.151.194.0/24
• 88.151.199.0/24
• 109.205.208.0/24
• 109.205.213.0/24
• 109.205.215.0/24
• 185.81.216.0/23
• 185.81.219.0/24
• 188.64.8.0/21

Upstream networks

• AS34170 Aztelekom LLC

Adjacent networks

• AS34170 Aztelekom LLC