AS13046 — ASN-ISKON

Network type: residential

AS13046 announces 33 IPv4 prefixes covering 136,704 addresses and 17 IPv6 prefixes.

About this network

194 IPv4 prefixes for 136,704 addresses, and reverse names built from only half an address.

What it's used for

• A Croatian internet provider, held by the national telecommunications operator. 136,704 addresses across 194 IPv4 prefixes, 23 IPv6 prefixes, and 44 observed BGP neighbours.

Notable

• Eighteen of 18 sampled addresses returned names, in two forms: 244-0.dsl.iskon.hr for 89.164.244.0, and 141-136-132-0.dsl.iskon.hr for 141.136.132.0.
• Netnames include a numbered product series, ISKON-DSL-01, ISKON-ADSL-02 and ISKON-ADSL-05, alongside HR-ISKON-20110629.
• The newer blocks list the parent telecom as a registrant; the older ones name only the subsidiary.

Interesting

• The short reverse form drops the first two octets, so a name only identifies an address if you already know which block it came from. Within one /16 that holds, but the operator announces space in several, and the same label can be produced by more than one address. A name that cannot be resolved back to a single address is not doing the job reverse DNS exists for.
• 194 prefixes averaging under 750 addresses each is what accumulating small allocations over two decades looks like, rather than any routing intent.
• The netnames record both DSL and ADSL in a numbered series, dating the blocks by the product being sold when each was registered.

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

Announced prefixes

• 89.164.0.0/18
• 89.164.64.0/20
• 89.164.80.0/21
• 89.164.88.0/23
• 89.164.91.0/24
• 89.164.92.0/22
• 89.164.97.0/24
• 89.164.99.0/24
• 89.164.100.0/22
• 89.164.104.0/21
• 89.164.112.0/20
• 89.164.128.0/17
• 141.136.128.0/17
• 141.138.0.0/22
• 141.138.5.0/24
• 141.138.6.0/23
• 141.138.8.0/22
• 141.138.16.0/20
• 141.138.32.0/19
• 188.125.15.0/24
• 213.191.128.0/21
• 213.191.136.0/22
• 213.191.141.0/24
• 213.191.142.0/23
• 213.191.144.0/20
• 213.202.64.0/22
• 213.202.68.0/23
• 213.202.70.0/24
• 213.202.72.0/22
• 213.202.76.0/23
• 213.202.79.0/24
• 213.202.80.0/20
• 213.202.96.0/19
• 2001:1af0::/32
• 2001:1af0:9021::/48
• 2001:1af0:9022::/47
• 2001:1af0:9024::/46
• 2001:1af0:9028::/45
• 2001:1af0:9030::/44
• 2001:1af0:9040::/42
• 2001:1af0:9080::/41
• 2001:1af0:9100::/40
• 2001:1af0:9200::/39
• 2001:1af0:9400::/38
• 2001:1af0:9800::/37
• 2001:1af0:a000::/35
• 2001:1af0:c000::/34
• 2001:1af1::/32
• 2001:1af2::/31
• 2001:1af4::/30

Upstream networks

• AS5391 Hrvatski Telekom d.d.
• AS1299 Arelion Sweden AB
• AS3356 Level 3 Parent, LLC
• AS6939 Hurricane Electric LLC
• AS48362 Stadtwerke Feldkirch
• AS57463 NetIX Communications JSC
• AS8218 Zayo Infrastructure France SA

Downstream networks

• AS41336 Financijska agencija
• AS208057 Filip informatika d.o.o.
• AS197521 SPAN d.d.
• AS212550 Sedmi Odjel d.o.o.
• AS198548 Overseas Trade Co. Ltd. d.o.o.
• AS34540 mStart plus d.o.o.
• AS43009 Infobip Limited
• AS48353 Nova TV d.d.
• AS35416 Croatia Airlines d.d.
• AS41452 Zracna luka Zagreb d.o.o.
• AS198565 Germania Sport d.o.o.
• AS199244 Digital Realty Croatia Llc
• AS209957 Infigo IS d.o.o.
• AS42679 IPT d.o.o.
• AS48372 Hanza Media d.o.o.
• AS201850 SUPER SPORT d.o.o.

Adjacent networks

• AS5391 Hrvatski Telekom d.d.
• AS1299 Arelion Sweden AB
• AS34540 mStart plus d.o.o.
• AS41336 Financijska agencija
• AS3356 Level 3 Parent, LLC
• AS208057 Filip informatika d.o.o.
• AS197521 SPAN d.d.
• AS212550 Sedmi Odjel d.o.o.
• AS198548 Overseas Trade Co. Ltd. d.o.o.
• AS43009 Infobip Limited
• AS48353 Nova TV d.d.
• AS35416 Croatia Airlines d.d.
• AS41452 Zracna luka Zagreb d.o.o.
• AS198565 Germania Sport d.o.o.
• AS48362 Stadtwerke Feldkirch
• AS57463 NetIX Communications JSC
• AS6939 Hurricane Electric LLC
• AS199244 Digital Realty Croatia Llc
• AS209957 Infigo IS d.o.o.
• AS8218 Zayo Infrastructure France SA
• AS15994 A1 Hrvatska d.o.o.
• AS42679 IPT d.o.o.
• AS201850 SUPER SPORT d.o.o.
• AS48372 Hanza Media d.o.o.

Internet exchanges

• NetIX — Sofia, Bulgaria
• Vienna Internet Exchange — Vienna, Austria
• Croatian Internet Exchange — Zagreb, Croatia