CERNET2-TSINGHUA6-AS-AP

AS45576 · Tsinghua University Beijing 100084, China · CN · APNIC

2

Upstream providers

1

Downstream customers

0

v4 addresses

1

v6 /32s

Provider History

Active Possible trial (<90d) Historical

Addr family: All IPv4 IPv6

Provider	First Seen	Last Seen	Peers	Confidence	AF
CNGI-BJ-IX2-AS-AP AS24348	2024-09-01 1y 9mo	2026-06-04	22 peers AS209 AS1299 AS3257 AS8582 AS17350 AS34428 AS37468 AS47147 AS49028 AS61573 AS151704 AS199524 AS209718 AS398465		v4 v6
TWD2-NET-AS-AP AS24239	2024-09-01 1y 9mo	2026-06-04	4 peers AS209		v4 v6

Addr family: All IPv4 IPv6

Customer	Country	First Seen	Last Seen	IPs	Peers	Confidence	AF
TWD2-NET AS209300	CN	2024-09-01 1y 9mo	2026-06-04	—	4 peers AS209		v4 v6

IPv4 and IPv6 prefixes originated over time

0

v4 prefixes

0

v4 addresses

4

v6 prefixes

1

v6 /32s

Count of unclassified adjacencies per snapshot date

2025-04-10

Lost Transit

TWD2-NET AS209300 → lost provider CERNET2-TSINGHUA6-AS-AP AS45576

Confidence: 85% Duration: 220d

⇄

2025-04-10

Lost Transit

CERNET2-TSINGHUA6-AS-AP AS45576 → lost provider TWD2-NET-AS-AP AS24239

Confidence: 85% Duration: 220d

⇄

Active providers first seen 11–13 months ago — possible annual contract renewals

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