51.36.0.0/16

No route covers the whole prefix right now; more specific routes inside it are announced.

Current ASN: —; Not announced
Routed prefix: —; Most specific route covering this prefix
ASNs over time: 1; 1 announcement record
RIR allocation: RIPENCC; Saudi Arabia · 51.36.0.0/16

Routing data · Nov 2, 2026, 02:24 UTC

ASN historyEvery routed prefix covering 51.36.0.0/16

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
51.36.0.0/16	AS43766	Zain KSA	Saudi Arabia	2026-10-25 10:20	2026-11-01 16:26	Stopped

More specific routes280 total, showing the first 200

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
51.36.0.0/18	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.0.0/19	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.0.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.0.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.1.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.2.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.4.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.6.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.8.0/22	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.8.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.10.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.12.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.14.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.16.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.18.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.20.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.20.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.21.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.22.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.22.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.24.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.26.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.28.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.30.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.30.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.31.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.32.0/19	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.32.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.34.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.36.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.38.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.40.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.40.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.41.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.42.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.44.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.46.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.48.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.48.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.49.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.50.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.50.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.51.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.52.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.54.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.56.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.58.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.60.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.62.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.64.0/18	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.64.0/22	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.64.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.66.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.68.0/22	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.68.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.70.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.72.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.74.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.76.0/22	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.76.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.78.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.80.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.82.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.84.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.86.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.92.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.94.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.96.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.98.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.100.0/22	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.100.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.102.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.102.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.103.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.104.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.106.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.108.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.110.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.112.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.114.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.116.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.118.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.120.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.122.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.124.0/22	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.124.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.126.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.128.0/18	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.128.0/19	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.128.0/21	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.128.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.130.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.132.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.134.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.136.0/21	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.136.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.138.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.140.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.142.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.144.0/21	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.144.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.146.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.148.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.150.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.150.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.151.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.152.0/21	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.152.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.154.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.156.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.160.0/19	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.160.0/21	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.160.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.164.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.166.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.168.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.170.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.170.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.171.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.172.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.172.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.173.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.174.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.174.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.175.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.176.0/21	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.176.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.178.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.180.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.184.0/21	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.184.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.186.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.188.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.190.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.192.0/18	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.192.0/20	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.192.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.194.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.196.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.198.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.200.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.202.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.204.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.206.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.208.0/20	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.208.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.210.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.212.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.214.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.216.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.218.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.218.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.219.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.220.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.220.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.221.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.222.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.222.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.223.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.224.0/21	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.224.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.224.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.225.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.226.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.226.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.227.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.228.0/22	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.228.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.230.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.232.0/21	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.232.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.232.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.233.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.234.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.234.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.235.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.236.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.238.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.240.0/22	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.240.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.242.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.244.0/22	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.244.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.246.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.248.0/21	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.248.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.250.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.252.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.254.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.36.8.0/24	AS43766	Zain KSA	Saudi Arabia	2026-10-25 10:20	2026-11-01 16:26	Stopped
51.36.9.0/24	AS43766	Zain KSA	Saudi Arabia	2026-10-25 10:20	2026-11-01 16:26	Stopped
51.36.10.0/24	AS43766	Zain KSA	Saudi Arabia	2026-10-25 10:20	2026-11-01 16:26	Stopped
51.36.11.0/24	AS43766	Zain KSA	Saudi Arabia	2026-10-25 10:20	2026-11-01 16:26	Stopped
51.36.16.0/24	AS43766	Zain KSA	Saudi Arabia	2026-10-25 10:20	2026-11-01 16:26	Stopped
51.36.17.0/24	AS43766	Zain KSA	Saudi Arabia	2026-10-25 10:20	2026-11-01 16:26	Stopped
51.36.18.0/24	AS43766	Zain KSA	Saudi Arabia	2026-10-25 10:20	2026-11-01 16:26	Stopped
51.36.19.0/24	AS43766	Zain KSA	Saudi Arabia	2026-10-25 10:20	2026-11-01 16:26	Stopped
51.36.24.0/24	AS43766	Zain KSA	Saudi Arabia	2026-10-25 10:20	2026-11-01 16:26	Stopped
51.36.25.0/24	AS43766	Zain KSA	Saudi Arabia	2026-10-25 10:20	2026-11-01 16:26	Stopped
51.36.26.0/24	AS43766	Zain KSA	Saudi Arabia	2026-10-25 10:20	2026-11-01 16:26	Stopped

Change logAll changes

The routes covering this address have had no origin changes since ASNBase started monitoring.

Look up another address

RIR allocation record

Registry: RIPENCC
Allocated block: 51.36.0.0/16
Country: Saudi Arabia
Allocation date: 1993-09-01
Status: assigned

From the RIRs’ delegated statistics files. Shows where the addresses are registered, not where they are used.

How monitoring works

Every 2 hours ASNBase takes the bgp.tools global routing table (prefix → origin ASN) and compares it with the previous one. The detected time is the time of that comparison; the actual change can be up to about 2 hours earlier.
Only routes seen by more than 100 bgp.tools peers are listed as changes; routes with less visibility are only kept in the history.
A new announcement counts only if it is still in the next routing table, and a withdrawal only if the prefix is missing from two tables in a row, so short flaps are ignored.
ASNBase has been monitoring since 2026-10-19. “Before monitoring” under “First seen” means the route was already announced when monitoring started; the earlier date is unknown.
Prefixes first seen during the first day of monitoring do not count as new announcements: most of them were simply missing from the table at the moment monitoring started.
Countries and regions follow the ASN’s registration, not the actual location of the IP addresses.