Home ASN LookupAS63770

AS63770 ICSCOE-AS - Industrial Cyber Security Center of Excellence

🇯🇵

Org handle: A91A7381

APNICallocated

Announced Prefixes (BGP)

13total

9 IPv44 IPv6

IPv4 Addresses

Allocated (RIR)6,144

Announced (BGP)9,216

IPv6 Addresses

Allocated (RIR)0

Announced (BGP)8.4×10²⁸

Prefix Limit (IPv4)

Prefix Limit (IPv6)

Country

🇯🇵 JP

RIR

APNIC

Status

allocated

Allocated

2014-08-25

Routing hygiene

Score 64/100 · High risk

RPKI ROA coverage

no RPKI invalid prefixes

IRR route objects

7 prefixes registered for another origin

Hijack signals

0 announced against others' ROAs, 0 own announced by others

Upstreams

diversity 14/100

100% of announced prefixes (13 of 13) have no valid ROA
100% of announced prefixes (13 of 13) have no IRR route object for this ASN
7 prefixes registered in IRR route objects for another active network and not authorized by a ROA
Routes concentrated on one upstream (92% of routes)

Based on 13 announced prefixes, updated daily (2026-10-24). How the score works · RPKI explained

Announced Prefixes

(BGP)13

Prefix	RPKI	IRR	Last Seen
103.95.184.0/22	No ROA	-	2026-10-26
163.220.224.0/20	No ROA	-	2026-10-26
163.220.240.0/22	No ROA	-	2026-10-26
163.220.244.0/24	No ROA	-	2026-10-26
163.220.245.0/24	No ROA	-	2026-10-26
163.220.246.0/24	No ROA	-	2026-10-26
163.220.247.0/24	No ROA	-	2026-10-26
163.220.248.0/22	No ROA	-	2026-10-26
219.100.92.0/22	No ROA	-	2026-10-26
2401:5e40::/33	No ROA	-	2026-10-26

1-10 of 13

1 / 2

Allocated Prefixes

(RIR)3

Prefix	Country	RIR	Status
103.95.184.0/22	🇯🇵 JP	APNIC	allocated
163.220.224.0/20	🇯🇵 JP	APNIC	allocated
163.220.248.0/22	🇯🇵 JP	APNIC	allocated

All 13 announced prefixes of AS63770 →

BGP Neighbours

(seen in AS paths)

Upstreams (2)

Networks AS63770 hands its own prefixes to: transit providers, or peers at an exchange.

AS2907Research Organization Of Information And Systems, National Institute Of Informatics10
AS59103SoftEther Corporation3

Downstreams (2)

Networks whose own prefixes AS63770 passes on: usually its customers.

AS37917University Of Tsukuba3
AS151388SoftEther Corporation (SE JIKKEN )1

ASPA

No ASPA

External Links

APNIC Whois RIPEstat

Learn more

What is an ASN?Autonomous systems, ASN ranges and how they are assigned
RPKI and route origin validationWhat the RPKI badges on the prefix list mean
ASPA explainedWhy AS63770 should publish an ASPA object
IPv4 transfers in the APNIC regionMonthly volume and the latest registry transfers
ASN data in AI agents and SIEMMCP server and API integrations

API

Open

GEThttps://api.ipctl.io/v1/asn/63770

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/63770" | jq