103.37.136.0/21 - bgp.tools

103.37.136.0/21

Originated by AS4808, and 1 other

Overview
Connectivity
Whois
Validation

Registered on: 26 Aug 2014 (11 years old)

Prefix status: Active, Allocated under APNIC

Size of prefix: 8 /24's

Upstreams

AS4837 - China Unicom Backbone

Originators

	ASN	Description
	AS4808	China Unicom Beijing Province Network
	AS59025	Beijing Sankuai Technology Co.,Ltd.

How can a prefix have multiple ASNs?

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Upstreams

	ASN	Description
	AS4837	China Unicom Backbone

Peers

	ASN	Description
	AS9808	China Mobile Backbone
	AS4837	China Unicom Backbone

Last Update: 2026-02-10T03:23:03Z UTC

IRR Databases

IRR	Expected ASN
radb	AS23724	Show Raw route: 103.37.136.0/21 descr: China Telecom Beijing Co. Ltd. origin: AS23724 mnt-by: MAINT-AS23724 changed: idc_noc.bj@chinatelecom.cn 20200412 #01:02:23Z source: RADB last-modified: 2023-11-13T16:16:01Z
radb	AS4134	Show Raw route: 103.37.136.0/21 origin: AS4134 descr: Chinanet BeiJing Network mnt-by: MAINT-CT-GNOC changed: dougd@chinatelecom.cn 20190402 #06:20:59Z source: RADB last-modified: 2023-11-13T15:55:46Z
level3	AS4808	Show Raw route: 103.37.136.0/21 descr: Proxy-registered route object mnt-by: XINGXUNTECHLTD-MNT changed: irr@irr.irr 20240815 source: LEVEL3 origin: AS4808 last-modified: 2024-09-30T19:46:58Z

IRR

Expected ASN

radb

AS23724

Matches IRR source, but under a different ASN

Show Raw

route:          103.37.136.0/21
descr:          China Telecom Beijing Co. Ltd.
origin:         AS23724
mnt-by:         MAINT-AS23724
changed:        idc_noc.bj@chinatelecom.cn 20200412  #01:02:23Z
source:         RADB
last-modified:  2023-11-13T16:16:01Z

radb

AS4134

Show Raw

route:          103.37.136.0/21
origin:         AS4134
descr:          Chinanet BeiJing Network
mnt-by:         MAINT-CT-GNOC
changed:        dougd@chinatelecom.cn 20190402  #06:20:59Z
source:         RADB
last-modified:  2023-11-13T15:55:46Z

level3

AS4808

Show Raw

route:          103.37.136.0/21
descr:          Proxy-registered route object
mnt-by:         XINGXUNTECHLTD-MNT
changed:        irr@irr.irr 20240815
source:         LEVEL3
origin:         AS4808
last-modified:  2024-09-30T19:46:58Z

View

Upstreams

Originators

Upstreams

Peers

IRR Databases