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Internet tools
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DNS propagation check
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HTTP/S request tool
TLS/SSL certificate check
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What is my IPv4 and IPv6?
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Color picker
Lorem ipsum generator
URL encode/decode
HTML encode/decode
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Misc tools
Password generator
World map, day/night + local time
beta
Internet tools
DNS lookup
DNS propagation check
Port scan + probeing
WHOIS / RDAP lookup
HTTP/S request tool
TLS/SSL certificate check
beta
E-mail DNSBL blacklist check
Reverse DNS
CIDR calculator
beta
ASN database lookup
beta
What is my IPv4 and IPv6?
GeoIP location
QR code generator
Dev tools
Color contrast checker
Color picker
Lorem ipsum generator
URL encode/decode
HTML encode/decode
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Hash calculator (CRC64 - MD5 - SHA - RIPEMD)
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World map, day/night + local time
beta
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Result
AS133111, CERNET New Technology Co., Ltd
Last update of data:
04-05-2024 02:12 UTC
ASN:
AS133111 (CNT-northChina)
Country:
CN - China (Asia)
Org.:
CERNET New Technology Co., Ltd
https://www.cernet.com
Stats:
Peers
19
IX'es
-
Prefixes
7
IPv4
+25K
IPv6
1,6E+32
Contact:
CERNET New Technology Co., Ltd
CERNET Tower, Tsinghua Science Park Building 8, Beijing Haidian District 100084
CN
+86-010-62603421
History
Date
Peers
IX'es
Prefixes
IPv4
IPv6
Before 10-02-2024
18
-
21
24.832
1,6E+32
10-02-2024
-
-
-14
+1.024
-
04-05-2024
+1
-
-
-
-
Current
19
-
7
25.856
1,6E+32
Peers
Country
Relationship
ASN
Organization
Peers
Prefix'es
China
Upstream
AS4538
China Education and Research Network Center
56
92
China
Upstream
AS9808
China Mobile
52
191
China
Upstream
AS23910
IRT-CERNET-AP
49
10
China
Downstream
AS17428
21Vianet.Co.,Ltd
9
22
China
Downstream
AS18245
CNNIC
3
7
China
Downstream
AS24150
IRT-SCN-CN
3
3
China
Downstream
AS24423
IRT-FJGDWL-CN
3
5
China
Downstream
AS37936
15F,Ideal Plaza No.58 Bei Si Huan Xi Road
2
10
China
Downstream
AS55641
Beijing CNISP Technology Co., Ltd.
1
1
China
Downstream
AS55990
Huawei Cloud Service data center
16
160
China
Downstream
AS59019
Beijing Kingsoft Cloud Internet Technology Co., Ltd
11
35
China
Downstream
AS59022
Kunming Broadcast&TV Network CO.,LTD
1
2
China
Downstream
AS59025
Beijing Sankuai Technology Co.,Ltd.
1
1
China
Downstream
AS59073
Bank of China Limited
6
6
China
Downstream
AS59078
Yunify Technologies Inc.
7
2
China
Downstream
AS131137
Inspur Software Group Co., Ltd.
1
2
China
Downstream
AS131486
Beijing Jingdong 360 Degree E-commerce Co., Ltd.
5
1
China
Downstream
AS146788
China Broadcasting Network Co., Ltd
24
9
Downstream
AS134169
6
-
Announced (uniq) prefixes
Country
ASN
Announced prefix
Description
Size
China
AS133111
42.201.32.0/19
CERNEWTECH ( BEIJING ) CORPORATION
8.192
China
AS133111
42.245.192.0/18
China Education and Research Network
16.384
China
AS133111
43.252.48.0/24
CERNET New Technology Co., Ltd
256
China
AS133111
103.81.200.0/22
CERNEWTECH ( BEIJING ) CORPORATION
1.024
Country
ASN
Announced prefix
Description
Size
China
AS133111
2400:a980::/29
CERNET Tower, Tsinghua Science Park Building 8
6,3E+29
China
AS133111
2403:a200:9999::/48
21ViaNet(China),Inc.
1,2E+24
China
AS133111
240d:4000::/21
CERNET Tower, Tsinghua Science Park Building 8
1,6E+32
Log
000
+000
Parse input (ASN)
000
+000
Search database for 'AS133111'
003
+003
1 ASN's found
003
+000
Done
003
+000
Load details of AS133111
016
+013
7 prefixes found
039
+022
19 peers found
041
+003
No matching IX connections found!
043
+002
1 links loaded, 1 verified
046
+003
3 historical items loaded
046
+000
Done