AS198479 — BPLAN Nunsys SA

AS198479 announces 8 IPv4 prefixes covering 5,120 addresses and 0 IPv6 prefixes.

About this network

The AS handle BPLAN is held by Nunsys SA.

What it's used for

• The address space carries business and enterprise traffic, evidenced by reverse DNS entries pointing to nunsys.com and netnames such as ES-NUNSYS-20120217 and NUNSYS-TELIA-NET.
• The network announces 5120 IPv4 addresses across 8 prefixes and maintains 6 observed neighbours, a ratio consistent with a regional access or business ISP rather than a transit provider.
• Traffic from this AS consists of business subscribers and corporate endpoints, as Nunsys operates as a telecommunications provider in Spain.

Notable

• Registrants for the majority of prefixes align with the announcer, listing Nunsys SA for blocks including 37.128.168.0/22 and 91.235.108.0/22.
• Two prefixes, 91.235.48.0/23 and 91.235.51.0/24, are registered to Abuse Avatel under the netname AVATEL-NET, indicating leased or acquired space.
• One prefix, 185.5.236.0/23, is registered to Computer Bios Informatica S.L. under the netname COMBIOS-NET.
• The inventory is composed of small /22, /23, and /24 blocks, reflecting a fragmented address allocation typical of a mid-sized regional operator.

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

Announced prefixes

• 37.128.168.0/22
• 37.128.172.0/23
• 37.128.174.0/24
• 91.235.48.0/23
• 91.235.51.0/24
• 91.235.108.0/22
• 185.5.236.0/23
• 185.9.192.0/22

Upstream networks

• AS8220 COLT Technology Services Group Limited
• AS1299 Arelion Sweden AB
• AS12357 VODAFONE ESPANA S.A.U.

Downstream networks

• AS41418 AVATEL TELECOM, SA
• AS12569 Instrumentacion y Componentes, SA
• AS20693 Nunsys SA
• AS30937 Walhalla Data Center Services SL

Adjacent networks

• AS8220 COLT Technology Services Group Limited
• AS41418 AVATEL TELECOM, SA
• AS1299 Arelion Sweden AB
• AS12569 Instrumentacion y Componentes, SA
• AS20693 Nunsys SA
• AS30937 Walhalla Data Center Services SL
• AS12357 VODAFONE ESPANA S.A.U.

Routing security

• RPKI: 5 valid, 0 invalid and 12 not-found announcements; 2 ROAs.
• ASPA: none published.
• IRR: 94% of announcements registered; 17 route objects.
• Listed in as-sets: AS-12715-CUSTOMERS, AS-CODIGO1, AS-COMUNITEL, AS-NIXVAL-IXP, AS-NUNSYS, AS3352:AS-TDE-DIBA, AS48793:AS-DECIX-MAD-CONNECTED, AS48793:AS-DECIX-MAD-RS, AS48793:AS-DECIX-MAD-RS-V6.

Internet exchanges

• DE-CIX Madrid — Madrid, Spain