AS45557
Vietnam Technology and Telecommunication JSC
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
- Isp allocation +5
- Trust score 70 / 100
Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →
Network profile
Source: PeeringDB →Present at 1 internet exchange: Equinix Hong Kong
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 180.148.0.0/21 | 2.0K |
2.6%
|
Vietnam Technology and Telecommunication JSC | VN | Ho Chi Minh | Ho Chi Minh City |
| 45.118.136.0/22 | 1.0K |
1.0%
|
Vietnam Technology and Telecommunication JSC | VN | Ho Chi Minh | Ho Chi Minh City |
| 103.17.88.0/22 | 1.0K |
0.9%
|
Vietnam Technology and Telecommunication JSC | VN | — | — |
| 103.129.80.0/22 | 1.0K |
0.2%
|
Vietnam Technology and Telecommunication JSC | VN | — | — |
| 103.153.220.0/22 | 1.0K |
0.0%
|
Vietnam Technology and Telecommunication JSC | VN | — | — |
| 103.153.218.0/23 | 512 |
0.6%
|
Vietnam Technology and Telecommunication JSC | VN | — | — |
| 103.170.248.0/23 | 512 |
0.0%
|
Vietnam Technology and Telecommunication JSC | VN | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS45557 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 |
|---|---|---|
| 103.170.249.0/24 | 214,767 | 2026-11-06 09:19:39 |
| 103.129.82.0/24 | 213,846 | 2026-11-13 19:43:52 |
| 103.153.222.0/24 | 172,244 | 2026-11-13 19:37:11 |
| 103.17.90.0/24 | 171,511 | 2026-11-13 19:37:11 |
| 103.17.91.0/24 | 169,519 | 2026-11-13 19:37:11 |
| 103.129.83.0/24 | 169,304 | 2026-11-13 19:37:11 |
| 103.153.220.0/24 | 132,671 | 2026-11-13 19:43:52 |
| 45.118.139.0/24 | 77,642 | 2026-11-13 19:34:58 |
| 180.148.0.0/21 | 42,676 | 2026-11-13 19:41:51 |
| 103.170.248.0/24 | 34,472 | 2026-11-13 19:37:11 |
| 103.17.89.0/24 | 33,082 | 2026-11-13 19:34:58 |
| 45.118.137.0/24 | 32,718 | 2026-11-13 19:34:58 |
| 180.148.7.0/24 | 32,320 | 2026-11-13 19:41:51 |
| 45.118.136.0/22 | 32,225 | 2026-11-13 19:37:11 |
| 103.17.88.0/23 | 32,112 | 2026-11-13 19:37:11 |
| 103.153.220.0/23 | 31,122 | 2026-11-13 19:37:11 |
| 103.129.80.0/23 | 29,995 | 2026-11-13 19:37:11 |
| 103.153.218.0/23 | 29,802 | 2026-11-13 19:37:11 |
| 180.148.4.0/24 | 28,852 | 2026-11-13 19:41:51 |
| 103.153.223.0/24 | 27,796 | 2026-11-13 19:34:58 |
| 45.118.136.0/24 | 27,416 | 2026-11-13 19:34:58 |
| 103.153.218.0/24 | 26,964 | 2026-11-13 19:33:28 |
| 180.148.6.0/24 | 26,949 | 2026-11-13 19:41:51 |
| 180.148.5.0/24 | 26,912 | 2026-11-13 19:41:51 |
| 103.17.88.0/24 | 26,516 | 2026-11-13 19:34:58 |
| 103.129.80.0/24 | 25,315 | 2026-11-13 19:34:58 |
| 103.129.81.0/24 | 25,231 | 2026-11-13 19:34:58 |
| 180.148.0.0/24 | 25,186 | 2026-11-13 19:41:51 |
| 180.148.1.0/24 | 25,168 | 2026-11-13 19:41:51 |
| 180.148.3.0/24 | 24,995 | 2026-11-13 19:41:51 |
| 180.148.2.0/24 | 24,931 | 2026-11-13 19:41:51 |
| 45.118.138.0/24 | 24,695 | 2026-11-13 19:34:58 |
| 103.153.219.0/24 | 24,363 | 2026-11-13 19:34:58 |
| 103.153.221.0/24 | 22,936 | 2026-11-13 19:34:58 |
Frequently Asked Questions
What is AS45557?
AS45557 is an Autonomous System Number assigned to Vietnam Technology and Telecommunication JSC. 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 AS45557 announce?
AS45557 announces 7.2K IPv4 addresses distributed across 7 routed CIDR prefixes. The network is registered in Vietnam.
Who operates AS45557?
AS45557 is operated by Vietnam Technology and Telecommunication JSC. The organization is based in Vietnam. You can view all IP ranges and related ASNs on the organization page.
What country is AS45557 registered in?
AS45557 is registered in Vietnam. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
