51.39.0.0/16

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 · 51.39.0.0/16

Routing data · Nov 2, 2026, 02:24 UTC

ASN historyEvery routed prefix covering 51.39.0.0/16

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
51.39.0.0/16	AS43766	Zain KSA	Saudi Arabia	2026-10-25 10:20	2026-11-01 16:26	Stopped

More specific routes270 total, showing the first 200

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
51.39.0.0/18	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.0.0/19	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.0.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.0.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.1.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.2.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.2.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.3.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.4.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.4.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.5.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.6.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.6.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.7.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.8.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.8.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.9.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.10.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.10.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.11.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.12.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.12.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.13.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.14.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.14.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.15.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.16.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.16.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.17.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.18.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.18.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.19.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.20.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.20.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.21.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.22.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.22.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.23.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.24.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.24.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.26.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.28.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.28.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.30.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.30.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.31.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.32.0/19	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.32.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.32.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.33.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.34.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.34.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.35.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.36.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.38.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.40.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.40.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.41.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.42.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.42.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.43.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.44.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.46.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.48.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.48.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.49.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.50.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.50.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.51.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.52.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.52.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.53.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.54.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.54.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.55.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.56.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.56.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.57.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.58.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.58.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.59.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.60.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.60.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.61.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.62.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.62.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.63.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.64.0/18	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.64.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.66.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.68.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.70.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.72.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.74.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.76.0/22	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.76.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.78.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.80.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.82.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.84.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.86.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.88.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.90.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.92.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.94.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.96.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.98.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.100.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.102.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.102.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.103.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.104.0/22	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.104.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.106.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.108.0/22	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.108.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.110.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.112.0/22	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.112.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.114.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.116.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.118.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.120.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.122.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.124.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.126.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.128.0/18	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.128.0/20	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.128.0/21	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.128.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.130.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.132.0/22	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.132.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.134.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.136.0/21	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.136.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.138.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.140.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.142.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.144.0/20	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.144.0/21	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.144.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.146.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.148.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.150.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.152.0/21	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.152.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.156.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.156.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.157.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.160.0/21	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.160.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.162.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.164.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.166.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.168.0/21	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.168.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.170.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.172.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.172.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.173.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.174.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.176.0/20	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.176.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.176.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.177.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.178.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.179.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.180.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.181.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.183.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.184.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.185.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.186.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.187.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.188.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.188.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.189.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.190.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.191.0/24	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.192.0/18	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.192.0/20	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.192.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.194.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.196.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.198.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.200.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.202.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.204.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.206.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.208.0/20	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.208.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.210.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.212.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.214.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.216.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.218.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.220.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.222.0/23	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing
51.39.224.0/21	AS43766	Zain KSA	Saudi Arabia	Before monitoring	2026-11-02 02:24	Announcing

Change logAll changes

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

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RIR allocation record

Registry: RIPENCC
Allocated block: 51.39.0.0/16
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.