222.203.0.0/19

🇨🇳

IPv4APNICannouncedMOASNo ROA

CIDR

222.203.0.0/19

IP Version

IPv4

Addresses

8.1K

Mask

/19 (255.255.224.0)

Country

🇨🇳 China

City

Guilin (Diecai Qu)

RIR

APNIC

Status

announced

Allocated

Announced BGP Routes

2 of 2 routes

MOAS - 2 origin ASNs

RPKI:

IRR:

Prefix	Origin AS	RPKI	IRR	Last Seen
222.203.0.0/19	AS4538ERX-CERNET-BKB - China Education and Research Network Center	No ROA	—	6/13/2026
222.203.0.0/19	AS138438CNGI-GLN-IX-AS-AP - CERNET2 regional IX at Guangxi Normal University	No ROA	—	6/13/2026

3 less-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
222.192.0.0/12	AS4538ERX-CERNET-BKB - China Education and Research Network Center	No ROA	—	6/13/2026
222.203.0.0/16	AS4538ERX-CERNET-BKB - China Education and Research Network Center	No ROA	—	6/13/2026
222.203.0.0/16	AS24357CNGI-GZ-IX-AS-AP - CERNET2 IX at South China University of Technology	No ROA	—	6/13/2026

Origin ASNs (2)

Geolocation

Country🇨🇳ChinaCN

RegionGuangxi

CityGuilin (Diecai Qu)

API

Returns prefix allocation, BGP routes, and more-specific subnets.

curl -s "https://api.ipctl.io/v1/prefix/222.203.0.0/19" | jq

External Links