ResearchRouting table, looking glass, RPKI & IRR

140.207.0.0/16 China Unicom Shanghai network

Announced by AS17621 China Unicom Shanghai network. RPKI valid Seen by 5 of our 5 looking glass sessions.

Summary

What the table says about 140.207.0.0/16

Prefix
140.207.0.0/16
Origin
AS17621 CNCGROUP-SH
RPKI
RPKI valid
Size
65,536 addresses
Less specific
none
More specifics
114
IRR route objects
3 exact, 0 covering
In RouteViews
2026-10-14 20:02 UTC
Paths

How 140.207.0.0/16 is reached

Every path our looking glass collectors hold for this exact prefix. Open one for its attributes, or see them all side by side in the looking glass.

AS36601 TNT (TNT - Tampa, FL)Collector-1-TAMPA-FL36601 174 4837×2 17621
OriginAS17621 China Unicom Shanghai network
Origin codeincomplete
Communities174:21001 174:22013 36601:150 36601:174 36601:2001
Updated6d 17h ago
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 7029 1299 4837 17621
OriginAS17621 China Unicom Shanghai network
Origin codeIGP
Communities903:900 903:13760
Updated7d 2h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 4837 17621
OriginAS17621 China Unicom Shanghai network
Origin codeIGP
Communities36295:100
Updated7d 2h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Jacksonville, FL)Collector-2-COCOA-FL36295 6939 4837 17621
OriginAS17621 China Unicom Shanghai network
Origin codeIGP
Communitiesnone
Updated7d 2h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Orlando, FL)Collector-2-COCOA-FL36295 174 4837×2 17621
OriginAS17621 China Unicom Shanghai network
Origin codeincomplete
Communities174:21001 174:22013 36295:100 36295:174
Updated10d 19h ago
RPKI

Route origin authorizations

Covered by a ROA authorizing AS17621 to originate 140.207.0.0/16 up to /16. Validate another origin.

ROA prefixMax lengthAuthorized originTrust anchor
140.207.0.0/16/16AS17621 CNCGROUP-SHAPNIC
IRR

Route objects

Registered in the IRR for this prefix and the ones covering it. Look it up live.

RouteOriginSourceDescriptionMaintained by
140.207.0.0/16AS17621 CNCGROUP-SHAPNICChina Unicom B811&A1218, China Unicom No.21, Jin-Rong StreetMAINT-CNCGROUP-RR
140.207.0.0/16AS17621 CNCGROUP-SHNTTCOMCMI IP TransitMAINT-CMI-INT-HK
140.207.0.0/16AS17621 CNCGROUP-SHRADBCMI (Customer Route)MAINT-AS58453
More specific

Prefixes inside 140.207.0.0/16

114 announced prefixes fall inside this one.

Show the 114 prefixes
140.207.26.0/24 AS140979 UNICOM-SHFT-IDC140.207.27.0/24 AS140979 UNICOM-SHFT-IDC140.207.28.0/24 AS140979 UNICOM-SHFT-IDC140.207.54.0/24 AS140979 UNICOM-SHFT-IDC140.207.55.0/24 AS140979 UNICOM-SHFT-IDC140.207.56.0/24 AS140979 UNICOM-SHFT-IDC140.207.57.0/24 AS140979 UNICOM-SHFT-IDC140.207.58.0/24 AS140979 UNICOM-SHFT-IDC140.207.59.0/24 AS140979 UNICOM-SHFT-IDC140.207.62.0/24 AS17621 CNCGROUP-SH140.207.63.0/24 AS17621 CNCGROUP-SH140.207.64.0/24 AS140979 UNICOM-SHFT-IDC140.207.65.0/24 AS140979 UNICOM-SHFT-IDC140.207.66.0/24 AS140979 UNICOM-SHFT-IDC140.207.67.0/24 AS140979 UNICOM-SHFT-IDC140.207.68.0/24 AS140979 UNICOM-SHFT-IDC140.207.69.0/24 AS138421 CU-CN-AS140.207.70.0/24 AS138421 CU-CN-AS140.207.71.0/24 AS140979 UNICOM-SHFT-IDC140.207.72.0/24 AS138421 CU-CN-AS140.207.73.0/24 AS138421 CU-CN-AS140.207.98.0/24 AS17621 CNCGROUP-SH140.207.118.0/24 AS140979 UNICOM-SHFT-IDC140.207.119.0/24 AS140979 UNICOM-SHFT-IDC140.207.120.0/24 AS140979 UNICOM-SHFT-IDC140.207.121.0/24 AS140979 UNICOM-SHFT-IDC140.207.122.0/24 AS140979 UNICOM-SHFT-IDC140.207.123.0/24 AS140979 UNICOM-SHFT-IDC140.207.124.0/24 AS140979 UNICOM-SHFT-IDC140.207.125.0/24 AS140979 UNICOM-SHFT-IDC140.207.126.0/24 AS140979 UNICOM-SHFT-IDC140.207.127.0/24 AS140979 UNICOM-SHFT-IDC140.207.128.0/24 AS140979 UNICOM-SHFT-IDC140.207.129.0/24 AS140979 UNICOM-SHFT-IDC140.207.130.0/24 AS138421 CU-CN-AS140.207.131.0/24 AS138421 CU-CN-AS140.207.132.0/24 AS17621 CNCGROUP-SH140.207.133.0/24 AS17621 CNCGROUP-SH140.207.134.0/24 AS138421 CU-CN-AS140.207.135.0/24 AS138421 CU-CN-AS140.207.136.0/23 AS17621 CNCGROUP-SH140.207.138.0/23 AS138421 CU-CN-AS140.207.140.0/23 AS138421 CU-CN-AS140.207.161.0/24 AS17621 CNCGROUP-SH140.207.176.0/24 AS140979 UNICOM-SHFT-IDC140.207.177.0/24 AS140979 UNICOM-SHFT-IDC140.207.178.0/24 AS140979 UNICOM-SHFT-IDC140.207.179.0/24 AS140979 UNICOM-SHFT-IDC140.207.180.0/24 AS140979 UNICOM-SHFT-IDC140.207.181.0/24 AS140979 UNICOM-SHFT-IDC140.207.182.0/24 AS140979 UNICOM-SHFT-IDC140.207.183.0/24 AS140979 UNICOM-SHFT-IDC140.207.184.0/24 AS140979 UNICOM-SHFT-IDC140.207.185.0/24 AS140979 UNICOM-SHFT-IDC140.207.186.0/24 AS140979 UNICOM-SHFT-IDC140.207.187.0/24 AS140979 UNICOM-SHFT-IDC140.207.188.0/24 AS140979 UNICOM-SHFT-IDC140.207.189.0/24 AS140979 UNICOM-SHFT-IDC140.207.190.0/24 AS17621 CNCGROUP-SH140.207.191.0/24 AS140979 UNICOM-SHFT-IDC140.207.192.0/24 AS17621 CNCGROUP-SH140.207.193.0/24 AS17621 CNCGROUP-SH140.207.194.0/24 AS17621 CNCGROUP-SH140.207.195.0/24 AS17621 CNCGROUP-SH140.207.197.0/24 AS17621 CNCGROUP-SH140.207.198.0/24 AS17621 CNCGROUP-SH140.207.199.0/24 AS17621 CNCGROUP-SH140.207.200.0/24 AS17621 CNCGROUP-SH140.207.201.0/24 AS17621 CNCGROUP-SH140.207.202.0/24 AS17621 CNCGROUP-SH140.207.203.0/24 AS17621 CNCGROUP-SH140.207.204.0/24 AS17621 CNCGROUP-SH140.207.205.0/24 AS17621 CNCGROUP-SH140.207.206.0/24 AS17621 CNCGROUP-SH140.207.207.0/24 AS17621 CNCGROUP-SH140.207.208.0/21 AS138421 CU-CN-AS140.207.208.0/24 AS138421 CU-CN-AS140.207.209.0/24 AS138421 CU-CN-AS140.207.210.0/24 AS138421 CU-CN-AS140.207.211.0/24 AS138421 CU-CN-AS140.207.212.0/24 AS138421 CU-CN-AS140.207.213.0/24 AS138421 CU-CN-AS140.207.214.0/24 AS138421 CU-CN-AS140.207.215.0/24 AS138421 CU-CN-AS140.207.216.0/21 AS138421 CU-CN-AS140.207.216.0/22 AS138421 CU-CN-AS140.207.216.0/24 AS138421 CU-CN-AS140.207.217.0/24 AS138421 CU-CN-AS140.207.218.0/24 AS138421 CU-CN-AS140.207.219.0/24 AS138421 CU-CN-AS140.207.220.0/22 AS138421 CU-CN-AS140.207.220.0/24 AS138421 CU-CN-AS140.207.224.0/21 AS138421 CU-CN-AS140.207.232.0/24 AS17621 CNCGROUP-SH140.207.233.0/24 AS138421 CU-CN-AS140.207.234.0/24 AS17621 CNCGROUP-SH140.207.235.0/24 AS138421 CU-CN-AS140.207.236.0/24 AS17621 CNCGROUP-SH140.207.237.0/24 AS138421 CU-CN-AS140.207.238.0/23 AS138421 CU-CN-AS140.207.240.0/23 AS138421 CU-CN-AS140.207.241.0/24 AS138421 CU-CN-AS140.207.242.0/24 AS17621 CNCGROUP-SH140.207.243.0/24 AS17621 CNCGROUP-SH140.207.244.0/23 AS138421 CU-CN-AS140.207.245.0/24 AS138421 CU-CN-AS140.207.246.0/24 AS138421 CU-CN-AS140.207.247.0/24 AS17621 CNCGROUP-SH140.207.248.0/23 AS138421 CU-CN-AS140.207.249.0/24 AS138421 CU-CN-AS140.207.250.0/24 AS17621 CNCGROUP-SH140.207.251.0/24 AS138421 CU-CN-AS140.207.252.0/22 AS138421 CU-CN-AS140.207.255.0/24 AS138421 CU-CN-AS
Tools

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