AS17897 — CHINATELECOM-HLJ-AS-AP asn for Heilongjiang Provincial Net of CT

AS17897 announces 14 IPv4 prefixes covering 151,296 addresses and 9 IPv6 prefixes.

About this network

CHINATELECOM-HLJ-AS-AP is the autonomous system for China Telecom Heilongjiang, the provincial network of China Telecom in Heilongjiang province.

What it's used for

• The address space is registered under the netname CHINANET-HL with registrant IRT-CHINANET-CN, indicating it carries China Telecom's consumer and business access traffic in the Heilongjiang region.
• The AS announces 151,296 IPv4 addresses across 29 prefixes and 9 IPv6 prefixes, while maintaining only 1 observed neighbour. This high address-to-neighbour ratio is characteristic of a large access or eyeball network rather than a transit provider.

Notable

• Registrants for the majority of the largest prefixes, including 112.101.0.0/16 and 112.100.128.0/17, are listed as IRT-CHINANET-CN, which aligns with the announcer's identity as a China Telecom provincial network.
• The address inventory is dominated by blocks in the 112.100.0.0/16 and 112.101.0.0/16 ranges, with additional space in 123.167.0.0/16 and 219.147.0.0/16, reflecting a typical regional ISP allocation.

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

Announced prefixes

• 112.100.0.0/15
• 123.167.144.0/21
• 123.167.152.0/22
• 123.167.160.0/19
• 219.147.71.0/24
• 219.147.72.0/24
• 219.147.128.0/21
• 219.147.136.0/22
• 219.147.143.0/24
• 219.147.144.0/21
• 219.147.155.0/24
• 219.147.156.0/24
• 219.147.158.0/23
• 219.147.248.0/21
• 240e:1::/37
• 240e:41::/37
• 240e:41:4000::/37
• 240e:981:1109::/48
• 240e:981:110a::/48
• 240e:981:1500::/40
• 240e:981:1600::/40
• 240e:983:103::/48
• 240e:983:104::/48

Upstream networks

• AS4134 No.31,Jin-rong Street

Adjacent networks

• AS4134 No.31,Jin-rong Street

Routing security

• RPKI: 24 valid, 0 invalid and 1 not-found announcements; 24 ROAs.
• ASPA: none published.
• IRR: 16% of announcements registered; 7 route objects.
• Listed in as-sets: AS-ANC-CUSTOMER-PROXY-REGISTER, AS-CN, AS-CN2, AS-CN2, AS-CTGNET, AS-CTGNET-CUT, AS-RESEARCH-CN-CHINANET-HEILONGJIANG.