AS13056 — RT-TMB-AS PJSC Rostelecom. Tambov branch

AS13056 announces 8 IPv4 prefixes covering 10,496 addresses and 0 IPv6 prefixes.

About this network

A broadcast address with its own reverse name, in a zone that still says dialup.

What it's used for

• The Tambov regional branch of a Russian national operator. 10,496 addresses across nine IPv4 prefixes, three observed BGP neighbours, and no IPv6 announced.

Notable

• Six of 18 sampled addresses returned names, spread across several domains under one regional label: static-139-254.pppoe.tmb.ru, net-130-0.net.tmb.ru, bcast-131-255.b22.dialup.tmb.ru, net-145-0.tmb.ru, relay1.planeta-tmb.ru and mail.tmb.rss.ru.
• Netnames are MACROREGIONALCENTER, ROSTELECOM-NET and ROSTELECOM-NET2.
• The AS handle is RT-TMB-AS PJSC Rostelecom. Tambov branch, ending in a sentence full stop.
• One prefix could not be looked up in the registry; the fetch failed.

Interesting

• bcast in a hostname marks the broadcast address of a subnet, the one address that cannot be assigned to a host. Naming it anyway is what happens when a zone is generated across a whole range without excluding the reserved ends, and it quietly reveals the subnet boundaries to anyone reading the names.
• Two access technologies appear in the same set of names, one of them long superseded. Zones outlive the equipment they describe.
• MACROREGIONALCENTER uses underscores and describes an internal organisational tier rather than the network. It is the parent company's own structure leaking into the public registry.

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

Announced prefixes

• 78.132.128.0/20
• 91.202.20.0/22
• 193.33.62.0/23
• 194.226.132.0/24
• 213.135.128.0/21
• 213.135.140.0/22
• 213.135.144.0/22
• 213.135.152.0/23

Upstream networks

• AS12389 PJSC Rostelecom

Downstream networks

• AS203533 Tambovskiy bekon LLC
• AS41855 OSS JSC

Adjacent networks

• AS12389 PJSC Rostelecom
• AS203533 Tambovskiy bekon LLC
• AS41855 OSS JSC