42.83.133.0/24 - bgp.tools

42.83.133.0/24

Originated by AS24406, and 2 others

Upstreams

AS4847 - China Telecom Beijing Province Network
AS4808 - China Unicom Beijing Province Network
AS7497 - Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)
AS33071 - ISC F-ROOT ORD1
AS17547 - M1 NET LTD
AS21859 - Zenlayer Inc

	ASN	Description
	AS24406	China Internet Network Infomation Center
	AS24409	China Internet Network Infomation Center
	AS24151	China Internet Network Infomation Center

How can a prefix have multiple ASNs?

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How does bgp.tools detect anycast prefixes?

When bgp.tools scanned this prefix, we found that 42.83.133.1 was anycasted.

How are upstreams and downstreams calculated?

	ASN	Description
	AS4847	China Telecom Beijing Province Network
	AS4808	China Unicom Beijing Province Network
	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)
	AS33071	ISC F-ROOT ORD1
	AS17547	M1 NET LTD
	AS21859	Zenlayer Inc

	ASN	Description
	AS4808	China Unicom Beijing Province Network
	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)
	AS4847	China Telecom Beijing Province Network
	AS21859	Zenlayer Inc
	AS17547	M1 NET LTD
	AS33071	ISC F-ROOT ORD1

Last Update: 2025-07-19T03:23:29Z UTC

IRR	Expected ASN
apnic	AS24151	Show Raw route: 42.83.133.0/24 descr: China Internet Network Information Center country: CN origin: AS24151 mnt-by: MAINT-CNNIC-AP last-modified: 2013-03-22T03:14:01Z source: APNIC
radb	AS24151	Show Raw route: 42.83.133.0/24 origin: AS24151 descr: ZL-IDC-CTG mnt-by: MAINT-AS21859 changed: ipadmin@zenlayer.com 20211201 #10:26:50Z source: RADB last-modified: 2023-11-13T16:08:57Z
apnic	AS24406	Show Raw route: 42.83.133.0/24 descr: China Internet Network Information Center country: CN origin: AS24406 mnt-by: MAINT-CNNIC-AP last-modified: 2015-04-13T08:50:02Z source: APNIC
radb	AS24406	Show Raw route: 42.83.133.0/24 origin: AS24406 descr: ZL-IDC-CTG mnt-by: MAINT-AS21859 changed: ipadmin@zenlayer.com 20211201 #10:27:11Z source: RADB last-modified: 2023-11-13T16:08:57Z
apnic	AS24409	Show Raw route: 42.83.133.0/24 descr: China Internet Network Information Center country: CN origin: AS24409 mnt-by: MAINT-CNNIC-AP last-modified: 2013-08-16T06:42:01Z source: APNIC
radb	AS24409	Show Raw route: 42.83.133.0/24 descr: PNAP-DAL nccgroup origin: AS24409 mnt-by: MAINT-AS1828 changed: abaxter@internap.com 20140926 source: RADB last-modified: 2023-11-13T16:14:35Z
level3	AS4134	Show Raw route: 42.83.133.0/24 descr: Proxy-registered route object origin: AS4134 mnt-by: XINGXUNTECHLTD-MNT changed: irr@irr.irr 20240815 source: LEVEL3 last-modified: 2024-10-14T18:18:10Z