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Data as of Nov 3, 2026

183.131.40.0/21

No anonymizer space · no proxy exits in 30 days

NINGBO, ZHEJIANG Province, P.R.China. · space held by CHINANET Zhejiang province network

Announcement
183.131.32.0/20
RPKI valid
Announced by
AS136188
Type
Hosting
Risk
50 / 100 · Medium

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
183.128.0.0/11
since Feb 2011
AS4134Residential14,034
14 always on
CHINANET Zhejiang province network

Registrations in this block

The registry's network records over this block, widest first, each under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
183.128.0.0/112,097,152CHINANET-ZJCHINANET Zhejiang province networkALLOCATED PORTABLE—[email protected]
└ 183.128.0.0/121,048,576CHINANET-ZJ-ZXCHINANET-ZJ Zhongxin node networkALLOCATED NON-PORTABLE—[email protected]
└ 183.131.32.0/204,096CHINANET-ZJ-NBCHINANET-ZJ Ningbo node networkALLOCATED NON-PORTABLE—[email protected]
└ 183.131.40.0/212,048BDNSC-LTDBeijing Baidu Netcom Science and Technology Co., Ltd.ASSIGNED NON-PORTABLE—[email protected]

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Announced by

Covering announcement 183.131.32.0/20

Prefix
183.131.32.0/20
Announced by
AS136188 NINGBO, ZHEJIANG Province, P.R.China.
Type
Hosting
RPKI
RPKI valid
Netname
CHINANET-ZJ-NB
Registrant
CHINANET-ZJ Ningbo node network
RIR
APNIC
Registry

Holder

Organization
CHINANET Zhejiang province network
Range
183.128.0.0/11
Registration type
ALLOCATED PORTABLE
Reallocated to
CHINANET-ZJ Ningbo node network
Reallocated range
183.131.32.0/20
Reallocation type
ALLOCATED NON-PORTABLE
Origin network

AS136188

CN
Name
NINGBO, ZHEJIANG Province, P.R.China.
Type
Hosting
Registered
Jan 13, 2017
Domain
chinatelecom.cn
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed