AS17638

Name: AS17638 — ASN for TIANJIN Provincial Net of CT
Creator: ipdex

ASN for TIANJIN Provincial Net of CT Unknown registered in China

519IPv4 prefixes

19IPv6 prefixes

99%RPKI-valid

#8,283AS Rank

#36Rank in China

2002-11-18Allocated

ASN for TIANJIN Provincial Net of CT (AS17638) — Unknown, registered in China. announces 519 IPv4 prefixes + 19 IPv6 prefixes. Rank in China: #36. Allocated: 2002-11-18.

IPv4 519IPv6 19

Announced prefixes · 538

v4 36.106.44.0/24 valid
v4 36.106.45.0/24 valid
v4 36.106.46.0/24 valid
v4 36.106.47.0/24 valid
v4 36.106.48.0/22 valid
v4 36.106.5.0/24 valid
v4 36.106.52.0/22 valid
v4 36.106.56.0/22 valid
v4 36.106.6.0/24 valid
v4 36.106.60.0/22 valid
v4 36.106.64.0/22 valid
v4 36.106.68.0/22 valid
v4 36.106.72.0/22 valid
v4 36.106.76.0/22 valid
v4 36.106.8.0/24 valid
v4 36.106.80.0/22 valid
v4 36.106.84.0/22 valid
v4 36.106.9.0/24 valid
v4 36.106.96.0/22 valid
v4 42.122.0.0/16 unknown
v4 42.122.0.0/21 valid
v4 42.122.12.0/22 valid
v4 42.122.128.0/22 valid
v4 42.122.132.0/22 valid
v4 42.122.140.0/22 valid
v4 42.122.144.0/21 valid
v4 42.122.152.0/22 valid
v4 42.122.156.0/22 valid
v4 42.122.160.0/21 valid
v4 42.122.184.0/22 valid
v4 42.122.188.0/22 valid
v4 42.122.200.0/22 valid
v4 42.122.204.0/22 valid
v4 42.122.208.0/22 valid
v4 42.122.212.0/22 valid
v4 42.122.216.0/22 valid
v4 42.122.220.0/22 valid
v4 42.122.225.0/24 valid
v4 42.122.226.0/24 valid
v4 42.122.228.0/22 valid
v4 42.122.232.0/21 valid
v4 42.122.240.0/21 valid
v4 42.122.248.0/23 valid
v4 42.122.250.0/23 valid
v4 42.122.252.0/22 valid
v4 42.122.40.0/22 valid
v4 42.122.44.0/22 valid
v4 42.122.48.0/22 valid
v4 42.122.52.0/22 valid
v4 42.122.63.0/24 invalid

RPKI: rpki.cloudflare.com · 2026-06-22

— Routing status unavailable

Prefix history

Announced prefixes Source: ipdex daily snapshot · sparse rows, value holds until the next change (steps)

Data table

Day	Announced prefixes
2026-06-12	537
2026-06-13	537
2026-06-19	538
2026-06-20	538

AS topology · Customer cone 2

Providers · 1

AS4134 CHINANET BACKBONE

Customers · 1

AS132536 China Telecom

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