103.238.0.0/21 - bgp.tools

103.238.0.0/21

Originated by AS4808, and 1 other

Overview
Connectivity
Whois
Validation

Registered on: 18 Jul 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
	AS56048	China Mobile Group Beijing Company

How can a prefix have multiple ASNs?

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Upstreams

ASPA Support for prefixes with more than one AS origin is not available at the moment

	ASN	Description
	AS4837	China Unicom Backbone

Peers

	ASN	Description
	AS9808	China Mobile Backbone
	AS4837	China Unicom Backbone

Last Update: 2026-02-15T03:23:05Z UTC

IRR Databases

IRR	Expected ASN
radb	AS23724	Show Raw route: 103.238.0.0/21 origin: AS23724 descr: China Telecom Beijing Co. Ltd. mnt-by: MAINT-AS23724 changed: idc_noc.bj@chinatelecom.cn 20200416 #01:21:33Z source: RADB last-modified: 2023-11-13T16:16:01Z
level3	AS4808	Show Raw route: 103.238.0.0/21 descr: Proxy-registered route object mnt-by: XINGXUNTECHLTD-MNT changed: irr@irr.irr 20240815 source: LEVEL3 origin: AS4808 last-modified: 2024-09-30T19:46:57Z
radb	AS56048	Show Raw route: 103.238.0.0/21 descr: CMI (Customer Route) origin: AS56048 mnt-by: MAINT-AS58453 changed: qas_support@cmi.chinamobile.com 20210319 source: RADB last-modified: 2023-11-13T16:05:23Z

IRR

Expected ASN

radb

AS23724

Matches IRR source, but under a different ASN

Show Raw

route:          103.238.0.0/21
origin:         AS23724
descr:          China Telecom Beijing Co. Ltd.
mnt-by:         MAINT-AS23724
changed:        idc_noc.bj@chinatelecom.cn 20200416  #01:21:33Z
source:         RADB
last-modified:  2023-11-13T16:16:01Z

level3

AS4808

Show Raw

route:          103.238.0.0/21
descr:          Proxy-registered route object
mnt-by:         XINGXUNTECHLTD-MNT
changed:        irr@irr.irr 20240815
source:         LEVEL3
origin:         AS4808
last-modified:  2024-09-30T19:46:57Z

radb

AS56048

Show Raw

route:          103.238.0.0/21
descr:          CMI  (Customer Route)
origin:         AS56048
mnt-by:         MAINT-AS58453
changed:        qas_support@cmi.chinamobile.com 20210319
source:         RADB
last-modified:  2023-11-13T16:05:23Z

View

Upstreams

Originators

Upstreams

Peers

IRR Databases