HomePrefix Lookup128.104.0.0/13

128.104.0.0/13

🇺🇸
IPv4RIPEassigned RPKI Valid
CIDR
128.104.0.0/13
IP Version
IPv4
Addresses
524.2K
Mask
/13 (255.248.0.0)
Country
🇺🇸 United States
City
Madison
RIR
RIPE
Status
assigned
Allocated
-

Announced BGP Routes

0 of 0 routes
RPKI:
IRR:
PrefixOrigin ASRPKIIRRLast Seen
This prefix is not currently announced in BGP. See covering prefix below.

Covering Prefix

78 less-specific announcements
PrefixOrigin ASRPKIIRRLast Seen
128.105.0.0/16AS59WISC-MADISON-AS - University of Wisconsin Madison Valid—6/13/2026
128.104.0.0/16AS59WISC-MADISON-AS - University of Wisconsin Madison Valid—6/13/2026
128.109.0.0/16AS81NCREN - MCNC Valid—6/13/2026
128.107.0.0/16AS109CISCOSYSTEMS - CISCO SYSTEMS, INC. Valid—6/13/2026
128.111.0.0/16AS131UCSB-NET-AS - University of California, Santa BarbaraNo ROA—6/13/2026
128.110.0.0/16AS17055UTAH - University of UtahNo ROA—6/13/2026
128.108.0.0/16AS45090TENCENT-NET-AP - Shenzhen Tencent Computer Systems Company LimitedNo ROA—6/13/2026
128.106.128.0/17AS9506SINGTEL-FIBRE - Singtel Fibre Broadband Valid—6/13/2026
128.106.0.0/18AS3758SINGNET - SingNet Valid—6/13/2026
128.106.64.0/18AS9506SINGTEL-FIBRE - Singtel Fibre Broadband Valid—6/13/2026
128.108.224.0/20AS45090TENCENT-NET-AP - Shenzhen Tencent Computer Systems Company LimitedNo ROA—6/13/2026
128.108.64.0/20AS45090TENCENT-NET-AP - Shenzhen Tencent Computer Systems Company LimitedNo ROA—6/13/2026
128.108.112.0/20AS45090TENCENT-NET-AP - Shenzhen Tencent Computer Systems Company LimitedNo ROA—6/13/2026
128.108.144.0/20AS45090TENCENT-NET-AP - Shenzhen Tencent Computer Systems Company LimitedNo ROA—6/13/2026
128.108.176.0/20AS45090TENCENT-NET-AP - Shenzhen Tencent Computer Systems Company LimitedNo ROA—6/13/2026
128.108.240.0/20AS45090TENCENT-NET-AP - Shenzhen Tencent Computer Systems Company LimitedNo ROA—6/13/2026
128.110.216.0/21AS17055UTAH - University of UtahNo ROA—6/13/2026
128.108.128.0/21AS45090TENCENT-NET-AP - Shenzhen Tencent Computer Systems Company LimitedNo ROA—6/13/2026
128.108.136.0/21AS45090TENCENT-NET-AP - Shenzhen Tencent Computer Systems Company LimitedNo ROA—6/13/2026
128.108.104.0/21AS45090TENCENT-NET-AP - Shenzhen Tencent Computer Systems Company LimitedNo ROA—6/13/2026
128.108.208.0/21AS45090TENCENT-NET-AP - Shenzhen Tencent Computer Systems Company LimitedNo ROA—6/13/2026
128.108.200.0/21AS45090TENCENT-NET-AP - Shenzhen Tencent Computer Systems Company LimitedNo ROA—6/13/2026
128.108.192.0/21AS45090TENCENT-NET-AP - Shenzhen Tencent Computer Systems Company LimitedNo ROA—6/13/2026
128.108.168.0/21AS45090TENCENT-NET-AP - Shenzhen Tencent Computer Systems Company LimitedNo ROA—6/13/2026
128.108.0.0/21AS45090TENCENT-NET-AP - Shenzhen Tencent Computer Systems Company LimitedNo ROA—6/13/2026
128.108.8.0/21AS45090TENCENT-NET-AP - Shenzhen Tencent Computer Systems Company LimitedNo ROA—6/13/2026
128.108.16.0/21AS45090TENCENT-NET-AP - Shenzhen Tencent Computer Systems Company LimitedNo ROA—6/13/2026
128.108.24.0/21AS45090TENCENT-NET-AP - Shenzhen Tencent Computer Systems Company LimitedNo ROA—6/13/2026
128.108.32.0/21AS45090TENCENT-NET-AP - Shenzhen Tencent Computer Systems Company LimitedNo ROA—6/13/2026
128.108.40.0/21AS45090TENCENT-NET-AP - Shenzhen Tencent Computer Systems Company LimitedNo ROA—6/13/2026
128.108.48.0/21AS45090TENCENT-NET-AP - Shenzhen Tencent Computer Systems Company LimitedNo ROA—6/13/2026
128.108.56.0/21AS45090TENCENT-NET-AP - Shenzhen Tencent Computer Systems Company LimitedNo ROA—6/13/2026
128.108.160.0/21AS45090TENCENT-NET-AP - Shenzhen Tencent Computer Systems Company LimitedNo ROA—6/13/2026
128.108.80.0/21AS45090TENCENT-NET-AP - Shenzhen Tencent Computer Systems Company LimitedNo ROA—6/13/2026
128.108.88.0/21AS45090TENCENT-NET-AP - Shenzhen Tencent Computer Systems Company LimitedNo ROA—6/13/2026
128.108.96.0/21AS45090TENCENT-NET-AP - Shenzhen Tencent Computer Systems Company LimitedNo ROA—6/13/2026
128.106.84.0/22AS9255CONNECTPLUS-AS - Singapore Telecom Valid—6/13/2026
128.110.152.0/22AS17055UTAH - University of UtahNo ROA—6/13/2026
128.110.96.0/22AS17055UTAH - University of UtahNo ROA—6/13/2026
128.108.220.0/22AS45090TENCENT-NET-AP - Shenzhen Tencent Computer Systems Company LimitedNo ROA—6/13/2026
128.105.68.0/23AS59WISC-MADISON-AS - University of Wisconsin Madison Valid—6/13/2026
128.107.40.0/23AS109CISCOSYSTEMS - CISCO SYSTEMS, INC. Valid—6/13/2026
128.107.54.0/23AS109CISCOSYSTEMS - CISCO SYSTEMS, INC. Valid—6/13/2026
128.107.0.0/23AS109CISCOSYSTEMS - CISCO SYSTEMS, INC. Valid—6/13/2026
128.107.2.0/23AS109CISCOSYSTEMS - CISCO SYSTEMS, INC. Valid—6/13/2026
128.107.4.0/23AS109CISCOSYSTEMS - CISCO SYSTEMS, INC. Valid—6/13/2026
128.107.6.0/23AS109CISCOSYSTEMS - CISCO SYSTEMS, INC. Valid—6/13/2026
128.107.8.0/23AS109CISCOSYSTEMS - CISCO SYSTEMS, INC. Valid—6/13/2026
128.107.10.0/23AS109CISCOSYSTEMS - CISCO SYSTEMS, INC. Valid—6/13/2026
128.107.12.0/23AS109CISCOSYSTEMS - CISCO SYSTEMS, INC. Valid—6/13/2026
128.107.18.0/23AS109CISCOSYSTEMS - CISCO SYSTEMS, INC. Valid—6/13/2026
128.107.14.0/23AS109CISCOSYSTEMS - CISCO SYSTEMS, INC. Valid—6/13/2026
128.107.20.0/23AS109CISCOSYSTEMS - CISCO SYSTEMS, INC. Valid—6/13/2026
128.107.22.0/23AS109CISCOSYSTEMS - CISCO SYSTEMS, INC. Valid—6/13/2026
128.107.24.0/23AS109CISCOSYSTEMS - CISCO SYSTEMS, INC. Valid—6/13/2026
128.107.38.0/23AS109CISCOSYSTEMS - CISCO SYSTEMS, INC. Valid—6/13/2026
128.106.40.0/23AS3758SINGNET - SingNet Valid—6/13/2026
128.106.92.0/23AS3758SINGNET - SingNet Valid—6/13/2026
128.106.110.0/23AS3758SINGNET - SingNet Valid—6/13/2026
128.106.216.0/23AS3758SINGNET - SingNet Valid—6/13/2026
128.106.156.0/23AS9255CONNECTPLUS-AS - Singapore Telecom Valid—6/13/2026
128.104.227.0/24AS59WISC-MADISON-AS - University of Wisconsin Madison Valid—6/13/2026
128.106.40.0/24AS3758SINGNET - SingNet Valid—6/13/2026
128.106.20.0/24AS3758SINGNET - SingNet Valid—6/13/2026
128.106.21.0/24AS3758SINGNET - SingNet Valid—6/13/2026
128.106.23.0/24AS3758SINGNET - SingNet Valid—6/13/2026
128.106.28.0/24AS3758SINGNET - SingNet Valid—6/13/2026
128.106.223.0/24AS3758SINGNET - SingNet Valid—6/13/2026
128.106.178.0/24AS3758SINGNET - SingNet Valid—6/13/2026
128.106.12.0/24AS3758SINGNET - SingNet Valid—6/13/2026
128.106.5.0/24AS3758SINGNET - SingNet Valid—6/13/2026
128.106.4.0/24AS3758SINGNET - SingNet Valid—6/13/2026
128.106.15.0/24AS3758SINGNET - SingNet Valid—6/13/2026
128.106.41.0/24AS3758SINGNET - SingNet Valid—6/13/2026
128.106.9.0/24AS9255CONNECTPLUS-AS - Singapore Telecom Valid—6/13/2026
128.106.8.0/24AS9255CONNECTPLUS-AS - Singapore Telecom Valid—6/13/2026
128.110.100.0/24AS17055UTAH - University of UtahNo ROA—6/13/2026
128.110.156.0/24AS17055UTAH - University of UtahNo ROA—6/13/2026

More Specific Prefixes

100
PrefixASCountryStatus
128.108.0.0/16AS133478🇨🇳CNallocated
128.106.0.0/16🇸🇬SGallocated
128.105.0.0/16AS59🇺🇸USallocated
128.109.0.0/16AS81🇺🇸USallocated
128.110.0.0/16AS17055🇺🇸USallocated
128.104.0.0/16AS59🇺🇸USallocated
128.111.0.0/16AS131🇺🇸USallocated
128.107.0.0/16AS109🇺🇸USallocated
128.106.219.0/24🇸🇬SGassigned
128.106.216.0/24🇸🇬SGassigned
128.106.115.0/24🇸🇬SGassigned
128.106.206.0/24🇸🇬SGassigned
128.106.226.0/24🇸🇬SGassigned
128.106.110.0/24🇸🇬SGassigned
128.106.253.0/24🇸🇬SGassigned
128.106.152.0/24🇸🇬SGassigned
128.106.139.0/24🇸🇬SGassigned
128.106.173.0/24🇸🇬SGassigned
128.106.155.0/24🇸🇬SGassigned
128.106.159.0/24🇸🇬SGassigned
128.106.185.0/24🇸🇬SGassigned
128.106.183.0/24🇸🇬SGassigned
128.106.204.0/24🇸🇬SGassigned
128.106.196.0/24🇸🇬SGassigned
128.106.197.0/24🇸🇬SGassigned
128.106.187.0/24🇸🇬SGassigned
128.106.218.0/24🇸🇬SGassigned
128.106.225.0/24🇸🇬SGassigned
128.106.228.0/24🇸🇬SGassigned
128.106.252.0/24🇸🇬SGassigned
128.106.101.0/24🇸🇬SGassigned
128.106.138.0/24🇸🇬SGassigned
128.106.104.0/24🇸🇬SGassigned
128.106.147.0/24🇸🇬SGassigned
128.106.189.0/24🇸🇬SGassigned
128.106.70.0/24🇸🇬SGassigned
128.106.90.0/24🇸🇬SGassigned
128.106.99.0/24🇸🇬SGassigned
128.106.114.0/24🇸🇬SGassigned
128.106.134.0/24🇸🇬SGassigned
128.106.146.0/24🇸🇬SGassigned
128.106.149.0/24🇸🇬SGassigned
128.106.175.0/24🇸🇬SGassigned
128.106.75.0/24🇸🇬SGassigned
128.106.71.0/24🇸🇬SGassigned
128.106.180.0/24🇸🇬SGassigned
128.106.167.0/24🇸🇬SGassigned
128.106.224.0/24🇸🇬SGassigned
128.106.164.0/24🇸🇬SGassigned
128.106.102.0/24🇸🇬SGassigned
128.106.171.0/24🇸🇬SGassigned
128.106.170.0/24🇸🇬SGassigned
128.106.176.0/24🇸🇬SGassigned
128.106.186.0/24🇸🇬SGassigned
128.106.192.0/24🇸🇬SGassigned
128.106.233.0/24🇸🇬SGassigned
128.106.220.0/24🇸🇬SGassigned
128.106.211.0/24🇸🇬SGassigned
128.106.72.0/24🇸🇬SGassigned
128.106.227.0/24🇸🇬SGassigned
128.106.242.0/24🇸🇬SGassigned
128.106.248.0/24🇸🇬SGassigned
128.106.202.0/24🇸🇬SGassigned
128.106.207.0/24🇸🇬SGassigned
128.106.100.0/24🇸🇬SGassigned
128.106.172.0/24🇸🇬SGassigned
128.106.247.0/24🇸🇬SGassigned
128.106.109.0/24🇸🇬SGassigned
128.106.249.0/24🇸🇬SGassigned
128.106.182.0/24🇸🇬SGassigned
128.106.246.0/24🇸🇬SGassigned
128.106.88.0/24🇸🇬SGassigned
128.106.129.0/24🇸🇬SGassigned
128.106.244.0/24🇸🇬SGassigned
128.106.73.0/24🇸🇬SGassigned
128.106.77.0/24🇸🇬SGassigned
128.106.97.0/24🇸🇬SGassigned
128.106.98.0/24🇸🇬SGassigned
128.106.80.0/24🇸🇬SGassigned
128.106.111.0/24🇸🇬SGassigned
128.106.126.0/24🇸🇬SGassigned
128.106.128.0/24🇸🇬SGassigned
128.106.64.0/24🇸🇬SGassigned
128.106.76.0/24🇸🇬SGassigned
128.106.78.0/24🇸🇬SGassigned
128.106.79.0/24🇸🇬SGassigned
128.106.93.0/24🇸🇬SGassigned
128.106.94.0/24🇸🇬SGassigned
128.106.112.0/24🇸🇬SGassigned
128.106.120.0/24🇸🇬SGassigned
128.106.123.0/24🇸🇬SGassigned
128.106.125.0/24🇸🇬SGassigned
128.106.127.0/24🇸🇬SGassigned
128.106.130.0/24🇸🇬SGassigned
128.106.131.0/24🇸🇬SGassigned
128.106.133.0/24🇸🇬SGassigned
128.106.135.0/24🇸🇬SGassigned
128.106.148.0/24🇸🇬SGassigned
128.106.169.0/24🇸🇬SGassigned
128.106.151.0/24🇸🇬SGassigned
Geolocation
Country🇺🇸United StatesUS
RegionWisconsin
CityMadison
Coordinates43.0712, -89.4066 ↗
API
Open
GEThttps://api.ipctl.io/v1/prefix/128.104.0.0/13

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

curl -s "https://api.ipctl.io/v1/prefix/128.104.0.0/13" | jq
External Links
RIPEstat Hurricane Electric BGP