Home Prefix Lookup218.244.128.0/19

218.244.128.0/19 - Hangzhou Alibaba Advertising (AS37963)

IPv4APNICassignedAS37963ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd. RPKI Valid

CIDR

218.244.128.0/19

IP Version

IPv4

Addresses

8.1K

Mask

/19 (255.255.224.0)

Country

🇨🇳 China

City

Hangzhou

RIR

APNIC

Status

assigned

Allocated

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

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Prefix	Origin AS	RPKI	IRR	Last Seen
218.244.128.0/19	AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd.	Valid	APNIC	2026-10-13

More-Specific Announcements

2 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
218.244.128.0/20	AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd.	Valid	-	2026-10-13
218.244.144.0/20	AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd.	Valid	-	2026-10-13

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
218.244.128.0/19	AS37963	/24	apnic

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS37963	APNIC	MAINT-CNNIC-AP	2019-08-07
AS45102	APNIC	MAINT-CNNIC-AP	2019-08-07

Origin ASN

AS37963

ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd.

Related Prefixes

More prefixes of AS37963

All prefixes of AS37963 →

Geolocation

Country🇨🇳ChinaCN

RegionZhejiang

CityHangzhou

Coordinates30.2742, 120.1550 ↗

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/218.244.128.0/19

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

curl -s "https://api.ipctl.io/v1/prefix/218.244.128.0/19" | jq

External Links

RIPEstat