Home Prefix Lookup220.248.42.0/23

220.248.42.0/23 - UNICOM SHFT IDC China Unicom Shanghai FuTe IDC Network (AS140979)

IPv4APNICannouncedAS140979UNICOM-SHFT-IDC China Unicom Shanghai FuTe IDC network RPKI Valid

CIDR

220.248.42.0/23

IP Version

IPv4

Addresses

512

Mask

/23 (255.255.254.0)

Country

🇨🇳 China

City

Shanghai

RIR

APNIC

Status

announced

Allocated

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

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Prefix	Origin AS	RPKI	IRR	Last Seen
220.248.42.0/23	AS140979 UNICOM-SHFT-IDC China Unicom Shanghai FuTe IDC network	Valid	APNIC	2026-10-11

Related Announcements

1 less-specific, 1 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
220.248.0.0/18	AS17621 CNCGROUP-SH China Unicom Shanghai network	Valid	-	2026-10-11
220.248.42.0/24	AS140979 UNICOM-SHFT-IDC China Unicom Shanghai FuTe IDC network	Valid	-	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
220.248.42.0/23	AS140979	/23	apnic
220.248.0.0/18	AS17621	/18	apnic

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS140979	APNIC	MAINT-CNCGROUP-RR	2023-06-08

Origin ASN

AS140979

UNICOM-SHFT-IDC China Unicom Shanghai FuTe IDC network

Related Prefixes

Covering prefix

220.248.0.0/18AS17621

More prefixes of AS140979

All prefixes of AS140979 →

Geolocation

Country🇨🇳ChinaCN

RegionShanghai

CityShanghai

Coordinates31.2304, 121.4740 ↗

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/220.248.42.0/23

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

curl -s "https://api.ipctl.io/v1/prefix/220.248.42.0/23" | jq

External Links

RIPEstat