AS30975 — TKK Kotarbinskiego 3, 75-352 Koszalin

AS30975 announces 3 IPv4 prefixes covering 25,600 addresses and 1 IPv6 prefixes.

About this network

TKK is operated by TKK Telewizja Kablowa Koszalin sp. z o. o.

What it's used for

• The address space carries residential cable modem traffic, evidenced by reverse DNS entries such as 83-145-175-254.cable-modem.tkk.net.pl and 77-92-47-255.cable-modem.tkk.net.pl.
• The AS announces 25,600 IPv4 addresses across 3 prefixes and 1 IPv6 prefix, while maintaining 16 observed neighbours; this ratio of address volume to peering partners indicates an access network serving local subscribers.

Notable

• All registrants for the announced prefixes (PL-TKK-20040130, PL-TKK-20091113, and TKK) are listed as Telewizja Kablowa Koszalin sp. z o. o., fully consistent with the AS holder.
• The inventory consists of three distinct IPv4 blocks and one IPv6 /32, reflecting a regional cable operator's estate segmented by acquisition or deployment phase.

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

Announced prefixes

• 77.92.32.0/19
• 83.145.128.0/18
• 91.197.148.0/22
• 2a02:478::/32

Upstream networks

• AS20804 Exatel S.A.
• AS12741 Netia SA
• AS6939 Hurricane Electric LLC
• AS57463 NetIX Communications JSC

Downstream networks

• AS196728 Bialogardzka Spoldzielnia Mieszkaniowa
• AS39041 CDS Mioduszewski
• AS197399 Gmina Miasto Koszalin

Adjacent networks

• AS20804 Exatel S.A.
• AS12741 Netia SA
• AS196728 Bialogardzka Spoldzielnia Mieszkaniowa
• AS39041 CDS Mioduszewski
• AS6939 Hurricane Electric LLC
• AS197399 Gmina Miasto Koszalin
• AS57463 NetIX Communications JSC
• AS20485 Joint Stock Company TransTeleCom
• AS24482 SG.GS
• AS49559 A-Systems Sp. z o.o.
• AS24115 Equinix

Internet exchanges

• Equinix Internet Exchange Warsaw — Warsaw, Poland
• Thinx IX — Warsaw, Poland