AS45436
WorkUP Inc.
Scanned 9h 51m ago
🔄 Rescan

📋 Summary

IP address summary information
NameWorkUP Inc.
CountryJP
WebsiteWorkUP Inc.
IPv4 addresses56K
IPv6 addresses~2^81
ASN typeNot announced
RegistryAPNIC
AllocatedSep 16, 2008
UpdatedMay 28, 2026

🗺️ Geolocation

JP

Countries by IPv4 share

JP
100%

Geolocation based on WHOIS registration data.

📊 IP Ranges

IPv4: 15 | IPv6: 1
NetblockIP Count
157.250.72.0 - 157.250.79.255 2.0K
157.250.120.0 - 157.250.127.255 2.0K
157.250.64.0 - 157.250.71.255 2.0K
157.250.104.0 - 157.250.111.255 2.0K
157.250.80.0 - 157.250.87.255 2.0K
157.250.96.0 - 157.250.103.255 2.0K
157.250.88.0 - 157.250.95.255 2.0K
157.250.112.0 - 157.250.119.255 2.0K
103.244.44.0 - 103.244.47.255 1.0K
103.15.184.0 - 103.15.187.255 1.0K
103.23.248.0 - 103.23.251.255 1.0K
120.143.96.0 - 120.143.127.255 8.2K
110.50.96.0 - 110.50.127.255 8.2K
115.187.64.0 - 115.187.79.255 4.1K
2404:1300::/32 0
157.250.64.0 - 157.250.127.255 16K

Prefix data from RIPE Stat / RIR allocation records.

📄 WHOIS

APNIC
HandleAS45436
NameWORKUP-AS-AP
OrganizationWorkUP Inc.
CountryJP
Statusactive
AllocatedSep 16, 2008
UpdatedMay 28, 2026

Contacts

RegistrantWorkUP Inc. <apnic@grnt.ne.jp>
Abuse ContactIRT-WORKUP-JP <abuse@grnt.ne.jp>
Admin ContactNetwork Manager <apnic@grnt.ne.jp>
Tech ContactNetwork Manager <apnic@grnt.ne.jp>
Phone+81-3-3373-0474
Address2-7-2 Hatagaya

Source: APNIC

🔗 Peers

0 peers for this ASN

No peers found.

⬆️ Upstreams

0 upstreams

No upstreams found.

⬇️ Downstreams

0 downstreams

No downstreams found.

🔒 RPKI / ROA

Source: rpki.zorn.ltd
PrefixOrigin ASNMax LengthValidity
157.250.72.0 - 157.250.79.255 AS45436 /0 Not Found
157.250.120.0 - 157.250.127.255 AS45436 /0 Not Found
157.250.64.0 - 157.250.71.255 AS45436 /0 Not Found
157.250.104.0 - 157.250.111.255 AS45436 /0 Not Found
157.250.80.0 - 157.250.87.255 AS45436 /0 Not Found
157.250.96.0 - 157.250.103.255 AS45436 /0 Not Found
157.250.88.0 - 157.250.95.255 AS45436 /0 Not Found
157.250.112.0 - 157.250.119.255 AS45436 /0 Not Found
103.244.44.0 - 103.244.47.255 AS45436 /0 Not Found
103.15.184.0 - 103.15.187.255 AS45436 /0 Not Found
103.23.248.0 - 103.23.251.255 AS45436 /0 Not Found
120.143.96.0 - 120.143.127.255 AS45436 /0 Not Found
110.50.96.0 - 110.50.127.255 AS45436 /0 Not Found
115.187.64.0 - 115.187.79.255 AS45436 /0 Not Found
157.250.64.0 - 157.250.127.255 AS45436 /0 Not Found

RPKI validation powered by rpki.zorn.ltd (Routinator).

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