AS58543 — CHINATELECOM-GUANGDONG-IDC Guangdong

AS58543 announces 4 IPv4 prefixes covering 34,048 addresses and 10 IPv6 prefixes.

About this network

CHINATELECOM-GUANGDONG-IDC is operated by China Telecom Guangdong IDC.

What it's used for

• The address space carries data center and infrastructure traffic, as indicated by the AS handle "IDC" and registrant netnames such as RJNET, ZSQY-CN, and QYCC.
• The AS announces 34,048 IPv4 addresses across 4 prefixes and 31 IPv6 prefixes, while maintaining only 2 observed routing neighbours. This high address-to-neighbour ratio indicates a hosting or infrastructure role rather than transit.
• Traffic from this AS consists of web servers, API endpoints, and data center workloads hosted within China Telecom's Guangdong facilities.

Notable

• Registrants for the largest prefixes include IRT-CNISP-CN, IRT-ZSQY-CN-CN, and IRT-QYCC-CN, which align with the China Telecom Guangdong IDC identity.
• The inventory is dominated by a single large /17 block (121.201.0.0/17) alongside smaller /23 and /24 blocks, suggesting a consolidated corporate estate with specific sub-allocations.

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

Announced prefixes

• 103.186.108.0/23
• 103.212.48.0/23
• 103.212.50.0/24
• 121.201.0.0/17
• 240e:1f:1::/48
• 240e:1f:8000::/34
• 240e:5e:4004::/47
• 240e:ff:d000::/36
• 240e:97d:4000::/34
• 240e:97e::/33
• 240e:97f::/33
• 240e:983:1e03::/48
• 240e:983:1e04::/47
• 240e:983:1e07::/48

Upstream networks

• AS4134 No.31,Jin-rong Street

Downstream networks

• AS140056 China Telecom

Adjacent networks

• AS4134 No.31,Jin-rong Street
• AS140056 China Telecom

Routing security

• RPKI: 52 valid, 2 invalid and 1 not-found announcements; 141 ROAs.
• ASPA: none published.
• IRR: 96% of announcements registered; 419 route objects.
• Listed in as-sets: AS-CTGNET, AS-CTGNET-CUT, AS-GD, AS-RESEARCH-CN-CHINANET-GUANGDONG.