AS55992 — QIHOO - Beijing Qihu Technology Company Limited

AS55992 announces 9 IPv4 prefixes covering 82,432 addresses and 1 IPv6 prefixes.

About this network

QIHOO is the autonomous system for Qihoo 360, a major Chinese internet security and technology company.

What it's used for

• The address space carries corporate infrastructure, evidenced by netnames QIHOO and CTA-104-192-108-0-23 associated with registrants IRT-QIHOO-CN and QiHU 360 Inc.
• The AS announces 82,432 IPv4 addresses across 14 prefixes and 1 IPv6 prefix, while maintaining only 6 observed neighbours, indicating a large internal corporate estate rather than a transit or access network.
• Traffic from this AS consists of internal services, security endpoints, and corporate infrastructure supporting Qihoo 360's antivirus, browser, and internet security products.

Notable

• Registrants are consistent with the announcer, primarily listing IRT-QIHOO-CN for the majority of prefixes and QiHU 360 Inc. for the 104.192.108.0/23 block.
• The company was formerly known as Qihoo Technology Company Limited before renaming to Qihoo 360 Technology Co. Ltd. in 2010.
• The inventory is dominated by the 101.197.0.0/16 block, with the remainder finely subdivided into /20, /21, /22, /23, and /24 prefixes within the 101.198.0.0/16 range.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 101.197.0.0/16
• 101.198.160.0/19
• 101.198.192.0/22
• 101.198.196.0/24
• 101.198.198.0/23
• 101.198.200.0/21
• 101.198.208.0/20
• 104.192.108.0/23
• 104.192.110.0/24
• 2405:a900:fffe::/48

Upstream networks

• AS23764 CTGNet
• AS36678 CHINA TELECOM (AMERICAS) CORPORATION
• AS21859 Zenlayer Inc
• AS17621 China Unicom Shanghai network
• AS24400 Shanghai Mobile Communications Co.,Ltd.
• AS4811 China Telecom (Group)

Adjacent networks

• AS23764 CTGNet
• AS36678 CHINA TELECOM (AMERICAS) CORPORATION
• AS21859 Zenlayer Inc
• AS17621 China Unicom Shanghai network
• AS24400 Shanghai Mobile Communications Co.,Ltd.
• AS4811 China Telecom (Group)

Routing security

• RPKI: 21 valid, 0 invalid and 6 not-found announcements; 20 ROAs.
• ASPA: none published.
• IRR: 81% of announcements registered; 51 route objects.
• Listed in as-sets: AS-36678, AS-C3, AS-CTANET-CUSTOMER, AS-CTGNET, AS-CTGNET-CUT, AS-CTHA, AS-CTSH, AS-ZENLAYER, AS17621:AS-CNCGROUP-SH, AS63529:AS-63529-AS-IMPORT-AS23764.