AS63737
VIETSERVER SERVICES TECHNOLOGY COMPANY LIMITED
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
- Trust score 65 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS63737 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 |
|---|---|---|
| 103.14.154.0/23 | 169,313 | 2026-07-24 17:52:23 |
| 103.149.136.0/23 | 169,118 | 2026-07-24 17:52:23 |
| 103.57.130.0/23 | 169,115 | 2026-07-24 17:52:23 |
| 103.122.140.0/23 | 168,944 | 2026-07-24 17:52:23 |
| 103.39.124.0/23 | 168,877 | 2026-07-24 17:52:23 |
| 103.15.94.0/23 | 168,671 | 2026-07-24 17:52:23 |
| 103.30.10.0/23 | 168,583 | 2026-07-24 17:52:23 |
| 157.66.158.0/23 | 167,769 | 2026-07-24 17:52:23 |
| 157.66.156.0/23 | 167,719 | 2026-07-24 17:52:23 |
| 160.30.204.0/23 | 167,388 | 2026-07-24 17:52:23 |
| 103.209.60.0/23 | 20,115 | 2026-07-24 17:52:23 |
| 103.74.100.0/22 | 19,981 | 2026-07-20 19:02:31 |
| 144.79.12.0/23 | 19,518 | 2026-07-24 17:52:23 |
| 103.14.224.0/23 | 19,289 | 2026-07-24 17:52:23 |
| 160.25.168.0/23 | 19,171 | 2026-07-24 17:52:23 |
| 160.25.234.0/23 | 19,164 | 2026-07-24 17:52:23 |
| 157.10.48.0/23 | 19,104 | 2026-07-24 17:52:23 |
| 157.10.50.0/23 | 19,067 | 2026-07-24 17:52:23 |
| 103.57.128.0/23 | 18,573 | 2026-07-24 17:52:23 |
| 103.140.250.0/23 | 18,231 | 2026-07-24 17:52:23 |
| 103.253.22.0/23 | 17,984 | 2026-07-24 17:52:23 |
| 103.231.248.0/23 | 17,974 | 2026-07-24 17:52:23 |
| 36.50.52.0/23 | 17,740 | 2026-07-24 17:52:23 |
| 202.55.132.0/22 | 7,471 | 2026-07-24 15:54:57 |
| 103.232.52.0/22 | 7,463 | 2026-07-24 15:54:57 |
| 42.96.10.0/23 | 5,252 | 2026-07-24 15:54:57 |
| 103.186.66.0/23 | 4,987 | 2026-07-24 15:54:57 |
| 103.176.112.0/23 | 4,986 | 2026-07-24 15:54:57 |
| 103.74.104.0/22 | 4,986 | 2026-07-24 15:54:57 |
| 103.182.18.0/23 | 4,983 | 2026-07-24 15:54:57 |
| 103.183.114.0/23 | 4,972 | 2026-07-24 15:54:57 |
| 103.180.152.0/23 | 4,970 | 2026-07-24 15:54:57 |
| 103.190.80.0/23 | 4,967 | 2026-07-24 15:54:57 |
| 103.183.118.0/23 | 4,966 | 2026-07-24 15:54:57 |
| 103.176.110.0/23 | 4,965 | 2026-07-24 15:54:57 |
| 103.180.150.0/23 | 4,965 | 2026-07-24 15:54:57 |
| 103.167.90.0/23 | 4,963 | 2026-07-24 15:54:57 |
| 103.167.92.0/23 | 4,954 | 2026-07-24 15:54:57 |
| 103.167.84.0/23 | 4,950 | 2026-07-24 15:54:57 |
| 103.187.4.0/23 | 4,945 | 2026-07-24 15:54:57 |
| 103.177.108.0/23 | 4,944 | 2026-07-24 15:54:57 |
| 103.170.254.0/23 | 4,935 | 2026-07-24 15:54:57 |
| 103.171.0.0/23 | 4,930 | 2026-07-24 15:54:57 |
| 160.25.76.0/23 | 4,901 | 2026-07-24 15:54:57 |
| 202.55.132.106/32 | 263 | 2026-07-21 16:58:21 |
| 103.176.111.161/32 | 186 | 2026-07-21 16:32:49 |
| 103.176.110.66/32 | 157 | 2026-07-01 02:28:47 |
| 42.96.11.110/32 | 151 | 2026-07-01 03:02:15 |
| 103.232.54.156/32 | 115 | 2026-07-21 17:07:21 |
| 103.167.85.186/32 | 97 | 2026-06-30 01:59:30 |
Showing top 50 of 83 announced prefixes by sample volume.
Frequently Asked Questions
What is AS63737?
AS63737 is an Autonomous System Number assigned to VIETSERVER SERVICES TECHNOLOGY COMPANY 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 AS63737 announce?
AS63737 announces 24.6K IPv4 addresses distributed across 41 routed CIDR prefixes. The network is registered in Vietnam.
Who operates AS63737?
AS63737 is operated by VIETSERVER SERVICES TECHNOLOGY COMPANY LIMITED. The organization is based in Vietnam. You can view all IP ranges and related ASNs on the organization page.
What country is AS63737 registered in?
AS63737 is registered in Vietnam. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
