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
- Isp allocation +5
- Trust score 58 / 100
Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →
About PCCW Limited
PCCW Limited is a Hong Kong–based information and communication technology (ICT) and telecommunications company.
⚠ 100+ MOAS prefixes — multiple origin ASNs detected
All MOAS anomalies →A previously stable prefix originated by AS3491 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) |
|---|---|---|
| 195.66.224.0/21 | AS3491, AS34019, AS34984, AS213241 | 2026-11-12 21:09:03 |
| 63.217.72.0/22 | AS3491, AS31713 | 2026-11-12 21:09:03 |
| 63.218.144.0/23 | AS3491, AS31713 | 2026-11-12 21:09:03 |
| 63.223.6.0/24 | AS3491, AS31713 | 2026-11-12 21:09:03 |
| 63.222.201.0/24 | AS3491, AS31713 | 2026-11-12 21:09:03 |
| 63.221.155.0/24 | AS3491, AS31713 | 2026-11-12 21:09:03 |
| 63.223.128.0/24 | AS3491, AS31713 | 2026-11-12 21:09:03 |
| 63.222.16.0/24 | AS3491, AS31713 | 2026-11-12 21:09:03 |
| 63.216.140.0/24 | AS3491, AS31713 | 2026-11-12 21:09:03 |
| 63.218.48.0/23 | AS3491, AS31713 | 2026-11-12 21:09:03 |
| 63.218.68.0/22 | AS3491, AS31713 | 2026-11-12 21:09:03 |
| 41.79.245.0/24 | AS3491, AS31713 | 2026-11-12 21:09:03 |
| 41.221.208.0/24 | AS3491, AS31713 | 2026-11-12 21:09:03 |
| 63.223.156.0/24 | AS3491, AS31713 | 2026-11-12 21:09:03 |
| 63.223.34.0/24 | AS3491, AS31713 | 2026-11-12 21:09:03 |
Showing the 15 most recently detected of 100+ MOAS prefixes. Many multi-origin prefixes on large networks are benign (anycast); see all MOAS anomalies.
Network profile
Source: PeeringDB →Present at 13 internet exchanges: LINX LON1: Main, Equinix Sydney, SIX Seattle: MTU 1500, Any2West, AMS-IX, NAPAfrica IX Cape Town, Equinix Singapore, KIXP - Nairobi: Peering LAN, HKIX: HKIX Peering LAN, NAPAfrica IX Johannesburg: Peering, …
AS3491 — global IP footprint
Cities where AS3491 has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS3491 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 |
|---|---|---|
| 63.222.187.0/24 | 271,896 | 2026-11-12 20:54:11 |
| 63.222.49.0/24 | 266,730 | 2026-11-12 20:54:22 |
| 203.170.52.0/22 | 105,506 | 2026-11-12 19:19:33 |
| 209.8.178.0/24 | 98,900 | 2026-11-12 20:14:36 |
| 205.177.233.0/24 | 98,886 | 2026-11-12 20:14:36 |
| 205.252.135.0/24 | 63,479 | 2026-11-12 19:19:33 |
| 63.217.70.0/24 | 57,778 | 2026-11-12 20:54:13 |
| 63.220.13.0/24 | 52,801 | 2026-11-12 20:54:13 |
| 199.12.0.0/19 | 51,853 | 2026-10-29 21:21:34 |
| 199.12.96.0/19 | 51,679 | 2026-10-29 21:21:34 |
| 199.12.128.0/19 | 51,621 | 2026-10-29 21:21:34 |
| 199.162.192.0/19 | 51,609 | 2026-10-29 21:21:34 |
| 199.13.0.0/19 | 51,592 | 2026-10-29 21:21:34 |
| 199.13.128.0/19 | 51,556 | 2026-10-29 21:21:34 |
| 41.79.244.0/22 | 50,950 | 2026-11-12 20:54:13 |
| 63.221.154.0/24 | 50,935 | 2026-11-12 20:54:10 |
| 63.221.155.0/24 | 50,747 | 2026-11-12 20:54:10 |
| 63.223.211.0/24 | 50,726 | 2026-11-12 20:54:10 |
| 41.79.249.0/24 | 50,572 | 2026-11-12 20:54:13 |
| 41.221.216.0/22 | 50,482 | 2026-11-12 20:54:13 |
| 41.221.216.0/24 | 50,420 | 2026-11-12 20:54:13 |
| 41.79.248.0/24 | 50,374 | 2026-11-12 20:54:14 |
| 41.79.245.0/24 | 50,008 | 2026-11-12 20:54:15 |
| 41.221.208.0/24 | 49,806 | 2026-11-12 20:54:15 |
| 107.155.192.0/18 | 49,803 | 2026-11-12 20:14:36 |
| 63.216.193.0/24 | 49,761 | 2026-11-12 20:54:14 |
| 63.219.16.0/22 | 49,454 | 2026-11-12 20:54:17 |
| 63.217.103.0/24 | 49,432 | 2026-11-12 20:54:10 |
| 63.216.35.0/24 | 49,395 | 2026-11-12 20:54:22 |
| 63.222.65.0/24 | 49,311 | 2026-11-12 20:54:10 |
| 63.219.19.0/24 | 49,245 | 2026-11-12 20:54:18 |
| 63.222.21.0/24 | 49,193 | 2026-11-12 20:54:21 |
| 63.218.14.0/23 | 49,098 | 2026-11-12 20:54:10 |
| 63.222.202.0/24 | 49,076 | 2026-11-12 20:54:14 |
| 63.217.168.0/22 | 49,030 | 2026-11-12 20:54:10 |
| 63.218.146.0/23 | 48,953 | 2026-11-12 20:54:10 |
| 63.218.250.0/23 | 48,921 | 2026-11-12 20:54:10 |
| 63.223.11.0/24 | 48,911 | 2026-11-12 20:54:13 |
| 63.217.237.0/24 | 48,783 | 2026-11-12 20:54:10 |
| 217.113.92.0/24 | 48,759 | 2026-11-12 20:54:13 |
| 63.216.56.0/21 | 48,749 | 2026-11-12 20:54:10 |
| 63.216.150.0/24 | 48,726 | 2026-11-12 20:54:10 |
| 63.222.33.0/24 | 48,718 | 2026-11-12 20:54:13 |
| 63.216.149.0/24 | 48,691 | 2026-11-12 20:54:10 |
| 63.218.114.0/23 | 48,590 | 2026-11-12 20:54:10 |
| 63.216.151.0/24 | 48,574 | 2026-11-12 20:54:10 |
| 63.217.71.0/24 | 48,559 | 2026-11-12 20:54:14 |
| 63.223.13.0/24 | 48,553 | 2026-11-12 20:54:10 |
| 63.218.214.0/23 | 48,549 | 2026-11-12 20:54:10 |
| 63.222.35.0/24 | 48,547 | 2026-11-12 20:54:13 |
Showing top 50 of 571 announced prefixes by sample volume.
Frequently Asked Questions
What is AS3491?
AS3491 is an Autonomous System Number assigned to PCCW Global (HK) Ltd.. 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 AS3491 announce?
AS3491 announces 1.32M IPv4 addresses distributed across 298 routed CIDR prefixes. The network is registered in Hong Kong.
Who operates AS3491?
AS3491 is operated by PCCW Global HK Ltd.. The organization is based in Hong Kong. You can view all IP ranges and related ASNs on the organization page.
What country is AS3491 registered in?
AS3491 is registered in Hong Kong. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
