Reputation · trust score
A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.
- Baseline (neutral) 65
- Active-threat / abuse risk −12
- Enterprise allocation +4
- Trust score 57 / 100
Experimental · trust-vectors model v1.2.1 — a transparent heuristic, not a definitive verdict. How it works →
⚠ 17 MOAS prefixes — multiple origin ASNs detected
All MOAS anomalies →A previously stable prefix originated by AS9583 is now also announced by another ASN (MOAS — Multiple-Origin AS), detected from our RIPE RIS collectors. Often benign (anycast, multi-homing, or a recent transfer) — but it can signal a route leak or prefix hijack, so it's worth inspecting.
| Prefix | Origin ASNs | Last detected (UTC) |
|---|---|---|
| 202.177.157.0/24 | AS9583, AS132215 | 2026-10-11 06:43:33 |
| 1.6.161.0/24 | AS9583, AS64764 | 2026-10-10 22:28:30 |
| 1.6.198.0/24 | AS9583, AS65000 | 2026-10-10 22:28:30 |
| 118.94.153.0/24 | AS9583, AS65000 | 2026-10-10 22:28:30 |
| 1.6.199.0/24 | AS9583, AS65000 | 2026-10-10 22:28:30 |
| 27.111.228.0/22 | AS9583, AS45430 | 2026-10-10 22:28:30 |
| 57.250.64.0/24 | AS9583, AS65002 | 2026-10-10 22:28:30 |
| 1.6.197.0/24 | AS9583, AS65000 | 2026-10-10 22:28:30 |
| 118.94.154.0/24 | AS9583, AS65000 | 2026-10-10 22:28:30 |
| 1.7.94.0/24 | AS9583, AS65000 | 2026-10-10 22:28:30 |
| 1.6.177.0/24 | AS9583, AS64764 | 2026-10-10 22:28:30 |
| 151.158.34.0/24 | AS9583, AS65002 | 2026-10-10 22:28:30 |
| 103.231.152.0/22 | AS9583, AS45430 | 2026-10-10 22:28:30 |
| 1.6.200.0/24 | AS9583, AS65000 | 2026-10-10 22:28:30 |
| 1.7.214.0/24 | AS9583, AS65005 | 2026-10-10 22:28:30 |
Showing the 15 most recently detected of 17 MOAS prefixes. Many multi-origin prefixes on large networks are benign (anycast); see all MOAS anomalies.
Network profile
Source: PeeringDB →Present at 20 internet exchanges: NIXI Mumbai, NIXI Chennai, NIXI Delhi, LINX LON1: Main, UAE-IX: UAE-IX Peering LAN, Equinix Paris: Equinix IX - PA Metro, France-IX Paris, AMS-IX, Equinix Singapore, NIXI Kolkata, …
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS9583 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 1.7.60.0/23 | 173,247 | 2026-10-11 06:48:45 |
| 221.134.231.0/24 | 94,620 | 2026-10-10 17:18:03 |
| 1.6.200.0/24 | 81,374 | 2026-10-11 06:48:45 |
| 1.6.201.0/24 | 79,353 | 2026-10-11 06:48:45 |
| 1.6.43.0/24 | 62,841 | 2026-10-11 06:48:45 |
| 1.6.92.0/22 | 60,763 | 2026-10-11 06:48:45 |
| 223.30.159.0/24 | 59,862 | 2026-10-11 06:48:46 |
| 1.6.60.0/22 | 58,003 | 2026-10-11 06:48:45 |
| 1.6.0.0/22 | 57,931 | 2026-10-11 06:48:45 |
| 1.6.1.0/24 | 57,103 | 2026-10-11 06:48:45 |
| 1.6.36.0/22 | 56,118 | 2026-10-11 06:48:45 |
| 1.6.28.0/22 | 55,978 | 2026-10-11 06:48:45 |
| 1.6.10.0/24 | 55,885 | 2026-10-11 06:48:45 |
| 1.6.89.0/24 | 55,729 | 2026-10-11 06:48:45 |
| 1.7.89.0/24 | 55,123 | 2026-10-11 06:48:45 |
| 1.6.108.0/22 | 55,105 | 2026-10-11 06:48:45 |
| 1.6.44.0/22 | 55,011 | 2026-10-11 06:48:45 |
| 1.6.31.0/24 | 54,793 | 2026-10-11 06:48:45 |
| 1.6.96.0/22 | 54,754 | 2026-10-11 06:48:45 |
| 1.6.16.0/22 | 54,445 | 2026-10-11 06:48:45 |
| 1.6.8.0/22 | 54,357 | 2026-10-11 06:48:45 |
| 1.6.20.0/22 | 53,906 | 2026-10-11 06:48:45 |
| 1.6.80.0/22 | 53,848 | 2026-10-11 06:48:45 |
| 1.6.72.0/24 | 53,677 | 2026-10-11 06:48:45 |
| 1.6.104.0/24 | 53,644 | 2026-10-11 06:48:46 |
| 1.6.52.0/22 | 53,559 | 2026-10-11 06:48:45 |
| 1.6.64.0/22 | 53,423 | 2026-10-11 06:48:45 |
| 1.6.84.0/22 | 53,169 | 2026-10-11 06:48:45 |
| 1.6.109.0/24 | 52,921 | 2026-10-11 06:48:45 |
| 1.6.177.0/24 | 52,525 | 2026-10-11 06:48:45 |
| 1.6.112.0/24 | 52,360 | 2026-10-11 06:48:45 |
| 1.6.54.0/24 | 52,302 | 2026-10-11 06:48:46 |
| 1.6.100.0/22 | 52,289 | 2026-10-11 06:48:28 |
| 1.6.247.0/24 | 51,805 | 2026-10-11 06:48:45 |
| 1.6.82.0/24 | 51,781 | 2026-10-11 06:48:45 |
| 1.6.192.0/22 | 51,682 | 2026-10-11 06:48:45 |
| 1.6.76.0/22 | 51,497 | 2026-10-11 06:48:45 |
| 1.6.66.0/24 | 51,386 | 2026-10-11 06:48:45 |
| 1.6.48.0/22 | 51,316 | 2026-10-11 06:48:45 |
| 1.6.65.0/24 | 51,286 | 2026-10-11 06:48:45 |
| 1.6.211.0/24 | 51,093 | 2026-10-11 06:48:45 |
| 1.6.232.0/22 | 51,059 | 2026-10-11 06:48:45 |
| 1.6.2.0/24 | 50,716 | 2026-10-11 06:48:45 |
| 1.7.16.0/24 | 50,664 | 2026-10-11 06:48:45 |
| 1.6.12.0/24 | 50,565 | 2026-10-11 06:48:45 |
| 1.6.224.0/22 | 50,563 | 2026-10-11 06:48:45 |
| 1.6.60.0/24 | 50,543 | 2026-10-11 06:48:45 |
| 1.7.241.0/24 | 50,447 | 2026-10-11 06:48:45 |
| 1.6.205.0/24 | 50,382 | 2026-10-11 06:48:45 |
| 1.6.228.0/22 | 49,889 | 2026-10-11 06:48:45 |
Showing top 50 of 2,400 announced prefixes by sample volume.
Frequently Asked Questions
What is AS9583?
AS9583 is an Autonomous System Number assigned to Sify Limited. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).
How many IP addresses does AS9583 announce?
AS9583 announces 747.0K IPv4 addresses distributed across 619 routed CIDR prefixes. The network is registered in India.
Who operates AS9583?
AS9583 is operated by Sify Limited. The organization is based in India. You can view all IP ranges and related ASNs on the organization page.
What country is AS9583 registered in?
AS9583 is registered in India. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
