Malicious IPs in Vietnam

IPv4 networks located in Vietnam that are currently flagged for malicious activity, aggregated from multiple external and internal threat intelligence sources. Snapshot of (UTC), updated daily.

Flagged IPv4 networks
329
#14 of 176 countries
Per million allocated IPv4
19.9
#18 of 75 countries
Flagged IPv4 addresses
607
ranges count at most as a /24
Allocated IPv4 addresses
16,502,272
RIR delegation statistics

Vietnam at a glance

Vietnam had 329 flagged IPv4 networks in the snapshot of 2026-10-12, rank #14 of 176 countries by absolute count. Relative to its allocated IPv4 space that is 19.9 flagged networks per million addresses, rank #18 of 75, 2.2 times the median of 9.15 across all rated countries. The largest category is brute force sources with 77% of the flagged networks, followed by other malicious networks (12%). The three networks (ASNs) with the most flagged IPs hold 53% of them, led by VIETEL-AS-AP - Viettel Group (AS7552). Another 16 flagged IPv6 networks are located in Vietnam.

Malicious activity in Vietnam by category

A network listed in several categories counts once, in the most specific one. Also flagged: 16 IPv6 networks.

  • Brute force sources in Vietnam

    252 (77%)

    252 flagged networks, #8 of 157 countries for brute force sources. Sources of password guessing against SSH, mail, FTP and web logins. Brute Force Sources by Country

  • Other malicious networks in Vietnam

    40 (12%)

    40 flagged networks, #21 of 143 countries for other malicious networks. Addresses and ranges reported as malicious without a more specific category. Other Malicious Networks by Country

  • Botnet hosts in Vietnam

    22 (7%)

    22 flagged networks, #19 of 120 countries for botnet hosts. Infected hosts taking part in a botnet. Botnet Hosts by Country

  • Spam sources in Vietnam

    11 (3%)

    11 flagged networks, #12 of 86 countries for spam sources. Sources of email spam. Spam Sources by Country

  • C2 servers in Vietnam

    2 (1%)

    2 flagged networks, #29 of 51 countries for C2 servers. Command-and-control servers, payload hosts and other attacker-run infrastructure. C2 Servers by Country

  • Scanners in Vietnam

    2 (1%)

    2 flagged networks, #23 of 38 countries for scanners. Hosts scanning or probing services on the internet. Scanners by Country

Networks with the most flagged IPs in Vietnam

Autonomous systems announcing the flagged networks located in Vietnam.

#NetworkFlagged networks
1AS7552VIETEL-AS-AP - Viettel Group91
2AS45899VNPT-AS-VN - VNPT Corp55
3AS18403FPT-VN - FPT Telecom Company28
4AS135905VNPT-AS-VN - VIETNAM POSTS AND TELECOMMUNICATIONS GROUP15
5AS38731VTDC-AS-VN - Vietel - CHT Compamy Ltd13
6AS150895EZTECH-VN - EZ TECHNOLOGY COMPANY LIMITED12
7AS7602SPT-AS-VN - Sai gon Postel Corporation12
8AS24086VIETTEL-AS-VN - Viettel Corporation8
9AS131423LVHN-AS-VN - Branch of Long Van System Solution JSC - Hanoi6
10AS131353NHANHOA-AS-VN - NhanHoa Software company5

Compare Vietnam with other countries

Ranked by flagged networks per million allocated IPv4 addresses.

Questions about Vietnam

How many malicious IP addresses are there in Vietnam?
On 2026-10-12, 329 IPv4 networks (/24 blocks) located in Vietnam were flagged for malicious activity, with 607 listed IPv4 addresses and 16 IPv6 networks. Each /24 counts once, however many of its addresses are listed.
Which networks in Vietnam host the most flagged IPs?
VIETEL-AS-AP - Viettel Group (AS7552, 91 networks), VNPT-AS-VN - VNPT Corp (AS45899, 55 networks), FPT-VN - FPT Telecom Company (AS18403, 28 networks). Large hosting providers appear because attackers rent their servers, not necessarily because of the operator.

Query this data per IP via the API

Look up threat categories, reputation score, ASN and geolocation for any address in Vietnam or anywhere else with one API call.