HomePrefix Lookup137.220.128.0/17

137.220.128.0/17

🇯🇵
IPv4APNICallocatedAS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited RPKI Valid
CIDR
137.220.128.0/17
IP Version
IPv4
Addresses
32.7K
Mask
/17 (255.255.128.0)
Country
🇯🇵 Japan
City
Chiyoda City
RIR
APNIC
Status
allocated
Allocated
1/10/1990

Announced BGP Routes

1 of 1 route
RPKI:
IRR:
PrefixOrigin ASRPKIIRRLast Seen
137.220.128.0/17AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid
APNIC
6/13/2026

Covering Prefix

97 less-specific announcements
PrefixOrigin ASRPKIIRRLast Seen
137.220.252.0/22AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.158.0/24AS4907BGPNETPTELTD-AS-AP - BGPNET PTE. LTD. Valid—6/13/2026
137.220.136.0/24AS4907BGPNETPTELTD-AS-AP - BGPNET PTE. LTD. Valid—6/13/2026
137.220.139.0/24AS4907BGPNETPTELTD-AS-AP - BGPNET PTE. LTD. Valid—6/13/2026
137.220.166.0/24AS4907BGPNETPTELTD-AS-AP - BGPNET PTE. LTD. Valid—6/13/2026
137.220.156.0/24AS4907BGPNETPTELTD-AS-AP - BGPNET PTE. LTD. Valid—6/13/2026
137.220.152.0/24AS4907BGPNETPTELTD-AS-AP - BGPNET PTE. LTD. Valid—6/13/2026
137.220.153.0/24AS4907BGPNETPTELTD-AS-AP - BGPNET PTE. LTD. Valid—6/13/2026
137.220.140.0/24AS4907BGPNETPTELTD-AS-AP - BGPNET PTE. LTD. Valid—6/13/2026
137.220.157.0/24AS4907BGPNETPTELTD-AS-AP - BGPNET PTE. LTD. Valid—6/13/2026
137.220.155.0/24AS4907BGPNETPTELTD-AS-AP - BGPNET PTE. LTD. Valid—6/13/2026
137.220.172.0/24AS4907BGPNETPTELTD-AS-AP - BGPNET PTE. LTD. Valid—6/13/2026
137.220.154.0/24AS4907BGPNETPTELTD-AS-AP - BGPNET PTE. LTD. Valid—6/13/2026
137.220.130.0/24AS64050BGNL-HK - BGP Network Limited Valid—6/13/2026
137.220.164.0/24AS138995ANTBOX1-AS-AP - Antbox Networks Limited Valid—6/13/2026
137.220.150.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.151.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.160.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.161.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.163.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.167.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.168.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.169.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.170.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.171.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.174.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.175.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.176.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.177.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.180.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.181.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.182.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.183.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.184.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.185.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.186.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.191.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.192.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.193.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.194.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.196.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.197.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.198.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.199.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.201.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.202.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.203.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.205.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.208.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.210.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.211.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.212.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.213.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.215.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.217.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.218.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.219.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.220.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.221.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.223.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.224.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.225.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.227.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.228.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.229.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.230.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.231.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.232.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.233.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.235.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.236.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.238.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.240.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.242.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.244.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.245.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.250.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.251.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.252.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.253.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.254.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.255.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.128.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.129.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.131.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.132.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.133.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.134.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.135.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.137.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.138.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.141.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.142.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.143.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.144.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.145.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
137.220.146.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026

RPKI ROAs

2
PrefixOriginMax LengthTrust Anchor
137.220.128.0/17AS64050/24apnic
137.220.128.0/17AS152194/24apnic

IRR Route Objects

3
OriginRegistryMaintainerModified
AS64050APNICMAINT-RCPL-SG5/20/2020
AS152194APNICMAINT-RCPL-SG3/23/2024
AS64050RADBMAINT-AS6405011/13/2023

More Specific Prefixes

21
PrefixASCountryStatus
137.220.128.0/18🇯🇵JPassigned
137.220.192.0/18🇯🇵JPassigned
137.220.128.0/21🇯🇵JPassigned
137.220.139.0/24AS4907🇭🇰HKassigned
137.220.140.0/24AS4907🇭🇰HKassigned
137.220.150.0/24AS152194🇸🇬SGassigned
137.220.151.0/24AS152194🇸🇬SGassigned
137.220.152.0/24AS4907🇭🇰HKassigned
137.220.153.0/24AS4907🇭🇰HKassigned
137.220.154.0/24AS4907🇭🇰HKassigned
137.220.155.0/24AS4907🇭🇰HKassigned
137.220.136.0/24AS4907🇭🇰HKassigned
137.220.157.0/24AS4907🇭🇰HKassigned
137.220.158.0/24AS4907🇭🇰HKassigned
137.220.164.0/24AS138995🇸🇬SGassigned
137.220.165.0/24AS4907🇭🇰HKassigned
137.220.166.0/24AS4907🇭🇰HKassigned
137.220.172.0/24AS4907🇭🇰HKassigned
137.220.178.0/24AS4907🇭🇰HKassigned
137.220.179.0/24AS4907🇭🇰HKassigned
137.220.156.0/24AS4907🇭🇰HKassigned
Origin ASN
AS152194
CTGSERVERLIMITED-AS-AP - CTG Server Limited
Geolocation
Country🇯🇵JapanJP
RegionTokyo
CityChiyoda City
Coordinates35.6940, 139.7540 ↗
API
Open
GEThttps://api.ipctl.io/v1/prefix/137.220.128.0/17

Returns prefix allocation, BGP routes, and more-specific subnets.

curl -s "https://api.ipctl.io/v1/prefix/137.220.128.0/17" | jq
External Links
RIPEstat Hurricane Electric BGP