HomePrefix Lookup121.243.0.0/17

121.243.0.0/17

🇮🇳
IPv4APNICannouncedAS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP RPKI Valid
CIDR
121.243.0.0/17
IP Version
IPv4
Addresses
32.7K
Mask
/17 (255.255.128.0)
Country
🇮🇳 India
City
Bengaluru
RIR
APNIC
Status
announced
Allocated
-

Announced BGP Routes

1 of 1 route
RPKI:
IRR:
PrefixOrigin ASRPKIIRRLast Seen
121.243.0.0/17AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid
RADB
6/13/2026

Covering Prefix

47 less-specific announcements
PrefixOrigin ASRPKIIRRLast Seen
121.243.0.0/21AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.32.0/21AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.16.0/21AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.12.0/22AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.64.0/22AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.24.0/22AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.28.0/22AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.60.0/22AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.44.0/22AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.48.0/22AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.112.0/22AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.104.0/22AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.72.0/22AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.126.0/23AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.68.0/23AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.76.0/23AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.78.0/23AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.84.0/23AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.86.0/23AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.94.0/23AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.96.0/23AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.98.0/23AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.100.0/23AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.110.0/23AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.116.0/23AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.118.0/23AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.120.0/23AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.82.0/24AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.99.0/24AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.2.0/24AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.86.0/24AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.89.0/24AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.5.0/24AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.121.0/24AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.41.0/24AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.40.0/24AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.39.0/24AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.50.0/24AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.59.0/24AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.38.0/24AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.15.0/24AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.66.0/24AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.96.0/24AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.11.0/24AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.3.0/24AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.76.0/24AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026
121.243.98.0/24AS4755TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP Valid—6/13/2026

RPKI ROAs

1
PrefixOriginMax LengthTrust Anchor
121.243.0.0/17AS4755/17apnic

IRR Route Objects

1
OriginRegistryMaintainerModified
AS4755RADBMAINT-VSNL-IN11/13/2023

More Specific Prefixes

37
PrefixASCountryStatus
121.243.73.0/25🇮🇳INassigned
121.243.74.192/26🇮🇳INassigned
121.243.65.0/26🇮🇳INassigned
121.243.80.0/26🇮🇳INassigned
121.243.73.160/27🇮🇳INassigned
121.243.97.128/27🇮🇳INassigned
121.243.87.32/27🇮🇳INassigned
121.243.97.192/27🇮🇳INassigned
121.243.77.0/28🇮🇳INassigned
121.243.73.128/28🇮🇳INassigned
121.243.73.192/28🇮🇳INassigned
121.243.73.208/28🇮🇳INassigned
121.243.87.64/28🇮🇳INassigned
121.243.87.0/28🇮🇳INassigned
121.243.96.40/29🇮🇳INassigned
121.243.96.8/30🇮🇳INassigned
121.243.96.52/30🇮🇳INassigned
121.243.99.36/30🇮🇳INassigned
121.243.72.0/30🇮🇳INassigned
121.243.72.4/30🇮🇳INassigned
121.243.72.8/30🇮🇳INassigned
121.243.72.16/30🇮🇳INassigned
121.243.96.36/30🇮🇳INassigned
121.243.86.8/30🇮🇳INassigned
121.243.96.68/30🇮🇳INassigned
121.243.99.40/30🇮🇳INassigned
121.243.64.4/30🇮🇳INassigned
121.243.72.12/30🇮🇳INassigned
121.243.80.232/30🇮🇳INassigned
121.243.96.48/30🇮🇳INassigned
121.243.96.60/30🇮🇳INassigned
121.243.96.64/30🇮🇳INassigned
121.243.96.72/30🇮🇳INassigned
121.243.96.76/30🇮🇳INassigned
121.243.64.0/30🇮🇳INassigned
121.243.72.48/30🇮🇳INassigned
121.243.86.0/30🇮🇳INassigned
Origin ASN
AS4755
TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP
Geolocation
Country🇮🇳IndiaIN
RegionKarnataka
CityBengaluru
Coordinates12.9716, 77.5946 ↗
API
Open
GEThttps://api.ipctl.io/v1/prefix/121.243.0.0/17

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

curl -s "https://api.ipctl.io/v1/prefix/121.243.0.0/17" | jq
External Links
RIPEstat Hurricane Electric BGP