AS63771 — BGPNAP - Border Gateway Protocol Network Analysis Project

AS63771 announces 2 IPv4 prefixes covering 2,048 addresses and 1 IPv6 prefixes.

About this network

BGPNAP is operated by the Border Gateway Protocol Network Analysis Project.

What it's used for

• The address space carries research infrastructure, evidenced by the netname BGPNAP-CIDR-BLK-JP and reverse DNS entries like 103-96-65-0.bb1.bgp.ad.jp.
• The AS announces 2048 IPv4 addresses across 2 prefixes and 1 IPv6 prefix, with only 3 observed neighbours, indicating a small-scale research or educational network rather than a transit provider.
• Traffic from this AS consists of BGP network analysis tools and research endpoints, as the organization is a voluntary group of engineers focused on BGP network analysis.

Notable

• Registrants for both IPv4 prefixes are listed as Japan Network Information Center; IRT-JPNIC-JP, which aligns with the announcer's identity as a Japanese research project.
• The address inventory is compact, consisting of two /22 IPv4 blocks and one /32 IPv6 prefix, typical for a specialized research initiative.

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

Announced prefixes

• 103.96.64.0/22
• 202.223.56.0/22
• 2401:7640::/32

Upstream networks

• AS59105 Home NOC Operators Group
• AS63780 dual&Co. Inc.

Downstream networks

• AS63778 Border Gateway Protocol Network Analysis Project

Adjacent networks

• AS59105 Home NOC Operators Group
• AS63778 Border Gateway Protocol Network Analysis Project
• AS63780 dual&Co. Inc.

Routing security

• RPKI: 22 valid, 0 invalid and 0 not-found announcements; 4 ROAs.
• ASPA: none published.
• IRR: 0% of announcements registered; 0 route objects.
• Listed in as-sets: AS-BBIX-T, AS-BBIX-T-V6, AS-GCTR-JP, AS-GIGAINFRA, AS-GIGAINFRA-V6, AS-HURRICANEV6, AS-IIJ, AS-IIJ6, AS-INFOSPHERE, AS-INFOSPHERE-V6, AS-KDD, AS-KDDI6, AS-MESH-CUSTOMER:AS10010, AS-MESH-CUSTOMER:AS59105, AS-PNAPTOK, AS-SAKURA, AS-TELSTRA-INTL-CUSTOMERS, AS-TOKAI, AS-TOKAI6, AS2497:AS-IIJ, AS2497:AS-IIJ6.