AS199810 — UMBB-INET Miasto Bielsko-Biala

AS199810 announces 1 IPv4 prefixes covering 1,024 addresses and 0 IPv6 prefixes.

About this network

UMBB-INET is operated by Miasto Bielsko-Biała, the municipal government of Bielsko-Biała, Poland.

What it's used for

• The address space is registered under the netname PL-UMBB-20131220 with registrant Miasto Bielsko-Biala, indicating municipal infrastructure.
• The AS announces a single IPv4 prefix, 185.43.136.0/22, comprising 1024 addresses, with 0 IPv6 prefixes.
• With 2 observed neighbours, the low neighbour count relative to the address block suggests a small-scale internal or access network rather than a transit provider.

Notable

• The RDAP registrant Miasto Bielsko-Biala matches the AS handle UMBB-INET and the registry holder, confirming consistent ownership.
• The inventory consists of a single contiguous /22 block, typical for a municipal or small organizational deployment.

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

Announced prefixes

• 185.43.136.0/22

Upstream networks

• AS43153 SferaNET Sp. z o.o.
• AS201966 OptiKabel Telecom Sp. z o.o.

Adjacent networks

• AS43153 SferaNET Sp. z o.o.
• AS201966 OptiKabel Telecom Sp. z o.o.

Routing security

• RPKI: 0 valid, 0 invalid and 2 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 50% of announcements registered; 1 route objects.
• Listed in as-sets: AS-NETIA-MSK-IX, AS-NETIA-PEERING, AS-SFERANET, AS-VECTRA, AS201966:AS-OPTIKABEL-CUSTOMERS, AS5617:AS-PL.