AS17638
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 42.122.64.0/18 valid
- v4 42.122.8.0/22 valid
- v4 42.80.0.0/15 unknown
- v4 42.80.20.0/23 valid
- v4 42.80.216.0/24 valid
- v4 42.80.218.0/24 valid
- v4 42.80.219.0/24 valid
- v4 42.80.239.0/24 valid
- v4 42.80.30.0/24 valid
- v4 42.80.31.0/24 valid
- v4 42.80.33.0/24 valid
- v4 42.80.41.0/24 valid
- v4 42.80.42.0/24 valid
- v4 42.80.43.0/24 valid
- v4 42.81.37.0/24 valid
- v4 42.81.38.0/23 valid
- v4 42.81.40.0/23 valid
- v4 42.81.78.0/24 valid
- v4 42.81.79.0/24 valid
- v6 240e:108:1290::/44 valid
- v6 240e:108:4161::/48 valid
- v6 240e:108:4166::/48 valid
- v6 240e:108:4961::/48 valid
- v6 240e:328::/32 valid
- v6 240e:45:1::/48 valid
- v6 240e:45::/33 valid
- v6 240e:5::/33 valid
- v6 240e:628:5::/48 valid
- v6 240e:628:8000::/33 valid
- v6 240e:628::/32 unknown
- v6 240e:628::/33 unknown
- v6 240e:929::/32 valid
- v6 240e:94::/31 valid
- v6 240e:983:900::/40 valid
- v6 240e:983:900::/48 valid
- v6 240e:983:901::/48 valid
- v6 240e:983:902::/48 valid
- v6 240e:983:903::/48 valid
RPKI: rpki.cloudflare.com · 2026-06-23
— Routing status unavailable
Prefix history
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
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