Home Prefix Lookup240a:a027:2::/48

240a:a027:2::/48 - China Education And Research Network CERNET (AS142690)

IPv6APNICannouncedAS142690AS142690-41 - China Education and Research Network CERNET RPKI Valid

CIDR

240a:a027:2::/48

IP Version

IPv6

Addresses

1.2Y

Mask

/48

Country

🇨🇳 China

City

Haidian (Haidian Qu)

RIR

APNIC

Status

announced

Allocated

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
240a:a027:2::/48	AS142690 AS142690-41 - China Education and Research Network CERNET	Valid	-	2026-10-11

Covering Prefix

3 less-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
240a:a027::/32	AS4538 ERX-CERNET-BKB China Education and Research Network Center	Valid	-	2026-10-11
240a:a027::/32	AS142689 AS142689-40 - China Education and Research Network CERNET	Valid	-	2026-10-11
240a:a027::/32	AS142691 AS142691-42 - China Education and Research Network CERNET	Valid	-	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
240a:a027:2::/48	AS142689	/48	apnic
240a:a027:2::/48	AS142690	/48	apnic
240a:a027:2::/48	AS142691	/48	apnic
240a:a027:2::/48	AS142692	/48	apnic
240a:a027:2::/48	AS142693	/48	apnic
240a:a027:2::/48	AS142694	/48	apnic
240a:a027:2::/48	AS142695	/48	apnic
240a:a027:2::/48	AS142696	/48	apnic
240a:a027:2::/48	AS142697	/48	apnic
240a:a027:2::/48	AS142698	/48	apnic
240a:a027::/32	AS4538	/32	apnic
240a:a027::/32	AS23910	/32	apnic
240a:a027::/32	AS142689	/32	apnic
240a:a027::/32	AS142690	/32	apnic
240a:a027::/32	AS142691	/32	apnic
240a:a027::/32	AS142692	/32	apnic
240a:a027::/32	AS142693	/32	apnic
240a:a027::/32	AS142694	/32	apnic
240a:a027::/32	AS142695	/32	apnic
240a:a027::/32	AS142696	/32	apnic
240a:a027::/32	AS142697	/32	apnic
240a:a027::/32	AS142698	/32	apnic

Origin ASN

AS142690

AS142690-41 - China Education and Research Network CERNET

Related Prefixes

Covering prefix

240a:a027::/32AS4538

More prefixes of AS142690

240a:a028::/32

All prefixes of AS142690 →

Geolocation

Country🇨🇳ChinaCN

RegionBeijing

CityHaidian (Haidian Qu)

Coordinates39.9997, 116.3260 ↗

Learn more

RPKI and ROAs explainedWhat RPKI valid, invalid and no ROA mean
RPKI validatorCheck ROA coverage for any prefix or ASN
What is BGP?How prefixes are announced and routed
More-specific prefixesGlossary: covering and more-specific routes
IPv4 transfers in the APNIC regionWho bought and sold address space recently

API

Open

GEThttps://api.ipctl.io/v1/prefix/240a:a027:2::/48

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

curl -s "https://api.ipctl.io/v1/prefix/240a:a027:2::/48" | jq

External Links

RIPEstat