AS3488 Japan Aerospace Exploration Agency

JAXAnet - Japan Aerospace Exploration Agency · registered in Japan

IPv4 addresses115,20051 prefixes · 0.004% of announced IPv4

Rank in Japan#69largest network in JP by IPv4 space, of 724 · 0.07% of JP

Rank worldwide#1,753of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryJapan745 ASNs registered there

Open AS3488 in ASN lookup Look up an IP in this network (133.56.0.1) All networks in Japan

IPv4 prefixes

All 51 prefixes, in address order.

133.56.0.0/21
133.56.8.0/22
133.56.12.0/24
133.56.13.0/25
133.56.13.128/29
133.56.13.136/31
133.56.13.138/32
133.56.13.139/32
133.56.13.140/30
133.56.13.144/28
133.56.13.160/27
133.56.13.192/26
133.56.14.0/23
133.56.16.0/20
133.56.32.0/19
133.56.64.0/19
133.56.96.0/22
133.56.100.0/23
133.56.102.0/23
133.56.104.0/21
133.56.112.0/23
133.56.114.0/24
133.56.115.0/24
133.56.116.0/22
133.56.120.0/21
133.56.128.0/18
133.56.192.0/21
133.56.200.0/23
133.56.202.0/24
133.56.203.0/24
133.56.204.0/22
133.56.208.0/20
133.56.224.0/19
133.74.0.0/18
133.74.64.0/19
133.74.96.0/20
133.74.112.0/21
133.74.120.0/26
133.74.120.64/31
133.74.120.66/31
133.74.120.68/30
133.74.120.72/29
133.74.120.80/28
133.74.120.96/27
133.74.120.128/25
133.74.121.0/24
133.74.122.0/23
133.74.124.0/22
133.74.128.0/18
202.245.153.0/24
202.251.177.0/24

Similar-sized networks in Japan

ASNNameIPv4 addresses

AS63802#66 MIKAKA-EAST - Nippon Telegraph and Telephone East Corporation131,072

AS7516#67 TOHKNET - TOHKnet Co.,Inc.119,040

AS24572#68 YAHOO-JP-AS-AP - Yahoo Japan118,784

AS10021#70 KVH - KVH Co.,Ltd110,848

AS38631#71 LINE - LY Corporation108,288

AS59108#72 KATCH-NET - KATCH NETWORK INC.96,256

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources