AS59484 — SiS-NET SiS Net 05 EOOD

AS59484 announces 5 IPv4 prefixes covering 2,304 addresses and 0 IPv6 prefixes.

About this network

The AS handle is SIS-NET and the holder is SiS Net 05 EOOD.

What it's used for

• The address space carries corporate and business traffic, evidenced by netnames such as SIS05, SisNet05EOOD, SisNet05, and SisNET.
• The AS announces 2304 IPv4 addresses across 5 prefixes with only 2 observed neighbours, a ratio that indicates a small-scale access or internal corporate network rather than a transit provider.
• Traffic from this AS consists of internal corporate endpoints and business operations for the holder, a Bulgarian limited liability company.

Notable

• Registrants for the majority of prefixes are listed as A1 Bulgaria EAD or A1 Bulgaria EAD Abuse, while the smallest prefix is registered to Sis Net 05 EOOD, suggesting a relationship or lease between the two entities.
• The address inventory is composed of five distinct IPv4 blocks, all located in Bulgaria, with no IPv6 prefixes in the inventory.

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

Announced prefixes

• 87.227.140.0/24
• 151.251.32.0/22
• 151.251.40.0/23
• 151.251.42.0/24
• 151.251.60.0/24

Upstream networks

• AS8717 A1 Bulgaria EAD

Downstream networks

• AS49040 K and G UNISAT -TV LLC

Adjacent networks

• AS8717 A1 Bulgaria EAD
• AS49040 K and G UNISAT -TV LLC

Routing security

• RPKI: 9 valid, 0 invalid and 0 not-found announcements; 9 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 9 route objects.
• Listed in as-sets: AS-RETN-ACTUAL-V4, AS-SPNET, AS8717:AS-A1BG.