ResearchRouting table, RPKI, IRR & looking glass

AS17621 China Unicom Shanghai network

AS17621 (CNCGROUP-SH) is registered to China Unicom Shanghai network in CN. It originates 773 prefixes in the global routing table.

351
IPv4 prefixes
422
IPv6 prefixes
1,010,944
IPv4 addresses
98%
RPKI valid
Registration

Who holds AS17621

Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.

AS number
AS17621
Handle
CNCGROUP-SH
Organization
China Unicom Shanghai network
Country
CN
ASPA
None published
Routing

What AS17621 announces

Prefixes originated by AS17621 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
351
IPv6 prefixes
422
IPv4 addresses
1,010,944 (3,949 /24s)
RPKI valid
762 98%
RPKI invalid
0
RPKI not found
11
ROAs naming AS17621
778
With an IRR route object
607 78%
Prefixes

Announced prefixes

Each opens its own page: who announces it, the paths our collectors see, its ROAs and route objects.

IPv4 (351)
27.115.0.0/1727.115.0.0/1827.115.118.0/2327.115.120.0/2227.115.122.0/2427.115.123.0/2427.115.124.0/2327.115.124.0/2427.115.126.0/2343.243.148.0/2243.243.148.0/2343.243.150.0/2343.250.144.0/2243.250.146.0/2443.250.147.0/2443.254.224.0/2258.246.0.0/1658.246.95.0/2458.247.0.0/1658.247.22.0/2458.247.108.0/2458.247.244.0/2458.247.245.0/2458.247.247.0/2459.81.64.0/2359.81.106.0/23101.52.248.0/22103.24.116.0/24103.24.118.0/23103.36.168.0/24103.36.172.0/24103.36.173.0/24103.38.232.0/22103.38.232.0/23103.38.234.0/23103.61.190.0/24103.108.244.0/24103.111.64.0/24103.140.14.0/23103.144.159.0/24103.164.32.0/24103.202.92.0/22103.202.96.0/22103.202.100.0/22103.202.104.0/22103.202.108.0/22103.202.112.0/22103.202.120.0/22103.202.124.0/22103.202.128.0/22103.202.132.0/22103.202.136.0/22103.202.140.0/22103.202.144.0/22103.231.16.0/24103.234.128.0/24103.234.129.0/24103.234.131.0/24103.238.184.0/24103.250.192.0/22103.250.192.0/24103.250.193.0/24106.75.208.0/20106.75.224.0/20106.75.240.0/20110.43.128.0/21110.43.136.0/21110.43.144.0/21110.43.152.0/21112.64.0.0/16112.64.0.0/17112.64.114.0/24112.64.128.0/17112.64.199.0/24112.64.200.0/24112.64.212.0/24112.64.213.0/24112.64.214.0/24112.64.238.0/24112.65.0.0/16112.65.0.0/17112.65.32.0/22112.65.33.0/24112.65.34.0/24112.65.44.0/23112.65.46.0/24112.65.54.0/23112.65.54.0/24112.65.55.0/24112.65.68.0/22112.65.72.0/22112.65.96.0/24112.65.128.0/18112.65.196.0/24112.65.197.0/24112.65.199.0/24112.65.200.0/21112.65.200.0/24112.65.201.0/24112.65.203.0/24112.65.204.0/24112.65.208.0/24112.65.209.0/24112.65.210.0/24112.65.211.0/24112.65.212.0/23112.65.212.0/24112.65.214.0/23112.65.216.0/21112.65.218.0/24112.65.239.0/24113.31.96.0/20113.31.112.0/20113.31.144.0/20113.31.160.0/20113.31.176.0/20114.28.248.0/24116.66.48.0/24116.66.49.0/24116.66.50.0/24
Show 231 more
116.66.53.0/24116.128.128.0/18116.128.200.0/21116.128.208.0/20120.92.128.0/21120.92.136.0/21120.92.144.0/21120.92.152.0/21120.92.160.0/21120.92.168.0/21120.92.176.0/21120.92.184.0/21120.92.184.0/23120.92.186.0/23120.92.224.0/20120.92.224.0/23120.92.226.0/23120.92.228.0/23120.92.230.0/23120.92.232.0/23120.92.234.0/23120.92.236.0/23120.92.238.0/23120.133.216.0/21120.133.224.0/22120.133.228.0/22120.133.236.0/24120.133.237.0/24120.133.238.0/24120.133.239.0/24120.136.168.0/21120.136.168.0/22120.136.172.0/22120.136.172.0/23120.136.173.0/24120.136.174.0/23120.136.176.0/22120.136.176.0/24120.136.177.0/24120.136.178.0/24120.136.179.0/24120.136.184.0/23120.136.184.0/24120.136.185.0/24120.136.186.0/24120.136.187.0/24122.144.240.0/24139.226.0.0/16139.226.32.0/19139.226.96.0/19139.227.0.0/16139.227.3.0/24139.227.166.0/24139.227.224.0/19139.227.224.0/24139.227.225.0/24139.227.251.0/24139.227.254.0/24140.206.0.0/16140.206.32.0/19140.206.54.0/24140.206.96.0/19140.206.128.0/19140.206.205.0/24140.206.206.0/24140.206.207.0/24140.206.210.0/24140.207.0.0/16140.207.62.0/24140.207.63.0/24140.207.98.0/24140.207.132.0/24140.207.133.0/24140.207.136.0/23140.207.161.0/24140.207.190.0/24140.207.192.0/24140.207.193.0/24140.207.194.0/24140.207.195.0/24140.207.197.0/24140.207.198.0/24140.207.199.0/24140.207.200.0/24140.207.201.0/24140.207.202.0/24140.207.203.0/24140.207.204.0/24140.207.205.0/24140.207.206.0/24140.207.207.0/24140.207.232.0/24140.207.234.0/24140.207.236.0/24140.207.242.0/24140.207.243.0/24140.207.247.0/24140.207.250.0/24150.242.238.0/23155.126.176.0/23175.102.16.0/24175.102.17.0/24175.102.18.0/24175.102.19.0/24175.102.20.0/24175.102.21.0/24175.102.22.0/24175.102.23.0/24175.102.24.0/24175.102.25.0/24175.102.26.0/24175.102.27.0/24175.102.28.0/24175.102.29.0/24175.102.30.0/24175.102.31.0/24175.102.132.0/24175.102.133.0/24175.102.134.0/24175.102.135.0/24182.175.224.0/24182.175.240.0/24182.175.241.0/24182.175.242.0/24182.175.243.0/24194.138.203.0/24202.57.192.0/24202.57.193.0/24202.90.96.0/22202.90.100.0/22202.90.104.0/22202.90.108.0/22202.136.208.0/22202.136.212.0/22202.136.218.0/24202.136.220.0/24202.136.222.0/23203.76.208.0/22203.76.212.0/22203.76.216.0/22210.2.1.0/24210.22.64.0/18210.22.64.0/20210.22.128.0/18210.22.220.0/22210.22.240.0/21210.22.248.0/22210.22.248.0/24210.22.249.0/24210.22.252.0/24210.22.254.0/23210.51.35.0/24210.51.42.0/24210.51.60.0/24210.52.213.0/24210.52.214.0/24210.52.215.0/24210.52.216.0/24210.52.217.0/24210.52.218.0/23210.52.218.0/24210.52.222.0/24210.52.223.0/24211.95.0.0/17211.95.33.0/24211.95.34.0/24211.95.35.0/24211.95.36.0/24211.95.37.0/24211.95.38.0/24211.95.48.0/21211.95.48.0/24211.95.49.0/24211.95.51.0/24211.95.52.0/24211.95.53.0/24211.95.60.0/23211.95.70.0/24211.95.71.0/24211.95.72.0/21211.95.72.0/24211.95.77.0/24211.144.192.0/23211.144.192.0/24211.144.193.0/24211.144.194.0/23211.144.194.0/24211.144.195.0/24211.144.196.0/22211.144.196.0/23211.144.196.0/24211.144.197.0/24211.144.198.0/23211.144.199.0/24211.144.200.0/21211.144.200.0/23211.144.200.0/24211.144.201.0/24211.144.202.0/23211.144.204.0/24211.144.205.0/24211.144.206.0/23218.96.127.0/24220.196.0.0/17220.196.2.0/23220.196.22.0/24220.196.48.0/24220.196.51.0/24220.196.58.0/23220.196.128.0/17220.196.224.0/21220.196.232.0/22220.196.235.0/24220.196.236.0/24220.196.237.0/24220.196.238.0/24220.196.239.0/24220.203.224.0/19220.248.0.0/18220.248.64.0/18220.248.117.0/24223.166.0.0/16223.167.0.0/16223.167.16.0/24223.167.32.0/19223.167.77.0/24223.167.96.0/19223.167.148.0/23223.167.148.0/24223.167.149.0/24223.167.166.0/23
IPv6 (422)
2403:a200:a1ff::/482404:7600:101::/482405:7040:6001::/482408:8000:9000::/362408:8000:91f0::/442408:8024:8000::/332408:8025::/322408:8026::/322408:8026:3e0::/442408:8026:3f0::/442408:8026:4e0::/442408:8026:510::/442408:8026:520::/442408:8026:700::/442408:8026:8f0::/442408:8026:900::/442408:80f1:10::/442408:80f1:50::/442408:80f1:80::/442408:80f1:90::/442408:80f1:a0::/442408:80f1:b0::/442408:80f1:c0::/442408:80f1:d0::/442408:80f1:e0::/442408:80f1:f0::/442408:80f1:100::/442408:80f1:180::/442408:80f1:190::/442408:80f1:1b0::/442408:80f1:200::/402408:80f1:230::/442408:820c::/322408:820c::/442408:820c:10::/442408:820c:20::/442408:820c:30::/442408:820c:40::/442408:820c:50::/442408:820c:60::/442408:820c:d00::/442408:820c:d10::/442408:820c:d20::/442408:820c:d40::/442408:820c:1a00::/442408:820c:1a10::/442408:820c:1a20::/442408:820c:1a30::/442408:820c:1a40::/442408:820c:1a50::/442408:820c:2700::/442408:820c:2710::/442408:820c:2720::/442408:820c:2730::/442408:820c:2740::/442408:820c:3410::/442408:820c:3420::/442408:820c:3430::/442408:820c:3440::/442408:820c:4e00::/442408:820c:4e10::/442408:820c:5b10::/442408:820c:5b20::/442408:820c:5b30::/442408:820c:5b40::/442408:820c:6800::/442408:820c:6810::/442408:820c:6840::/442408:820c:6850::/442408:820c:6870::/442408:820c:6880::/442408:820c:6890::/442408:820c:7500::/442408:820c:7510::/442408:820c:7520::/442408:820c:7530::/442408:820c:7540::/452408:820c:7548::/452408:820c:7550::/452408:820c:7558::/452408:820c:7560::/442408:820c:8200::/442408:820c:8210::/442408:820c:8220::/442408:820c:8230::/442408:820c:8240::/442408:820c:8260::/442408:820c:8f00::/442408:820c:8f10::/442408:820c:8f20::/442408:820c:8f30::/442408:820c:8f40::/442408:820c:8f50::/442408:820c:8f60::/442408:820c:8f70::/442408:820c:8f80::/442408:820c:8f90::/442408:820c:8fa0::/442408:820c:8fb0::/442408:820c:8fd0::/442408:820c:8fe0::/442408:820c:8ff0::/442408:820c:9000::/442408:820c:9010::/442408:820c:9030::/442408:820c:9040::/442408:820c:9050::/442408:820c:9060::/442408:820c:9070::/442408:820c:9080::/442408:820c:9090::/442408:820c:90a0::/452408:820c:90a8::/452408:820c:90b0::/442408:820c:90c0::/442408:820c:90d0::/442408:820c:90e0::/442408:820c:90f0::/442408:820c:9100::/442408:820c:9c00::/44
Show 302 more
2408:820c:9c30::/442408:820c:9c40::/442408:820c:a900::/442408:820c:a910::/442408:820c:a930::/442408:820c:a940::/442408:820c:a950::/442408:820c:a960::/442408:820c:a970::/442408:820c:b600::/442408:820c:b630::/442408:820c:b640::/442408:820c:b650::/442408:820c:b660::/442408:820c:c300::/442408:820c:c310::/442408:820c:c320::/442408:820c:c330::/442408:820c:c340::/442408:820c:d000::/442408:820c:d020::/442408:820c:d030::/442408:820d::/322408:820e::/322408:820f::/322408:840c::/402408:840c:200::/402408:840c:d00::/402408:840c:f00::/402408:840c:1a00::/402408:840c:1c00::/402408:840c:2700::/402408:840c:2900::/402408:840c:3400::/402408:840c:3600::/402408:840c:4e00::/402408:840c:5000::/402408:840c:5b00::/402408:840c:5d00::/402408:840c:6800::/402408:840c:6a00::/402408:840c:7500::/402408:840c:7700::/402408:840c:8200::/402408:840c:8400::/402408:840c:8f00::/402408:840c:9100::/402408:840c:9c00::/402408:840c:9e00::/402408:840c:a900::/402408:840c:ab00::/402408:840c:b600::/402408:840c:b800::/402408:840c:c300::/402408:840c:c500::/402408:840c:d000::/402408:840c:d200::/402408:840c:dd00::/402408:840c:dd40::/432408:840c:dd60::/432408:840c:dd80::/432408:840c:de00::/402408:840c:de60::/432408:840c:de80::/432408:840d::/432408:840d:20::/432408:840d:40::/432408:840d:200::/432408:840d:220::/432408:840d:400::/432408:840d:420::/432408:840d:440::/432408:840d:600::/432408:840d:620::/432408:840d:d00::/432408:840d:d20::/432408:840d:d40::/432408:840d:f00::/432408:840d:f20::/432408:840d:1100::/432408:840d:1120::/432408:840d:1140::/432408:840d:1300::/432408:840d:1320::/432408:840d:1a00::/432408:840d:1a20::/432408:840d:1a40::/432408:840d:1c00::/432408:840d:1c20::/432408:840d:1e00::/432408:840d:1e20::/432408:840d:1e40::/432408:840d:2000::/432408:840d:2020::/432408:840d:2700::/432408:840d:2720::/432408:840d:2740::/432408:840d:2900::/432408:840d:2920::/432408:840d:2b00::/432408:840d:2b20::/432408:840d:2b40::/432408:840d:2d00::/432408:840d:2d20::/432408:840d:3400::/432408:840d:3420::/432408:840d:3440::/432408:840d:3600::/432408:840d:3620::/432408:840d:3800::/432408:840d:3820::/432408:840d:3840::/432408:840d:3a00::/432408:840d:3a20::/432408:840d:4e00::/432408:840d:4e20::/432408:840d:4e40::/432408:840d:5000::/432408:840d:5020::/432408:840d:5200::/432408:840d:5220::/432408:840d:5240::/432408:840d:5400::/432408:840d:5420::/432408:840d:5b00::/432408:840d:5b20::/432408:840d:5b40::/432408:840d:5d00::/432408:840d:5d20::/432408:840d:5f00::/432408:840d:5f20::/432408:840d:5f40::/432408:840d:6100::/432408:840d:6120::/432408:840d:6800::/432408:840d:6820::/432408:840d:6840::/432408:840d:6a00::/432408:840d:6a20::/432408:840d:6c00::/432408:840d:6c20::/432408:840d:6c40::/432408:840d:6e00::/432408:840d:6e20::/432408:840d:7500::/432408:840d:7520::/432408:840d:7540::/432408:840d:7700::/432408:840d:7720::/432408:840d:7900::/432408:840d:7920::/432408:840d:7940::/432408:840d:7b00::/432408:840d:7b20::/432408:840d:8200::/432408:840d:8220::/432408:840d:8240::/432408:840d:8400::/432408:840d:8420::/432408:840d:8600::/432408:840d:8620::/432408:840d:8640::/432408:840d:8800::/432408:840d:8820::/432408:840d:8f00::/432408:840d:8f20::/432408:840d:8f40::/432408:840d:9100::/432408:840d:9120::/432408:840d:9300::/432408:840d:9320::/432408:840d:9340::/432408:840d:9500::/432408:840d:9520::/432408:840d:9c00::/432408:840d:9c20::/432408:840d:9c40::/432408:840d:9e00::/432408:840d:9e20::/432408:840d:a000::/432408:840d:a020::/432408:840d:a040::/432408:840d:a200::/432408:840d:a220::/432408:840d:a900::/432408:840d:a920::/432408:840d:a940::/432408:840d:ab00::/432408:840d:ab20::/432408:840d:ad00::/432408:840d:ad20::/432408:840d:ad40::/432408:840d:af00::/432408:840d:af20::/432408:840d:b600::/432408:840d:b620::/432408:840d:b640::/432408:840d:b800::/432408:840d:b820::/432408:840d:ba00::/432408:840d:ba20::/432408:840d:ba40::/432408:840d:bc00::/432408:840d:bc20::/432408:840d:c300::/432408:840d:c320::/432408:840d:c340::/432408:840d:c500::/432408:840d:c520::/432408:840d:c700::/432408:840d:c720::/432408:840d:c740::/432408:840d:c900::/432408:840d:c920::/432408:840d:d000::/432408:840d:d020::/432408:840d:d040::/432408:840d:d200::/432408:840d:d220::/432408:840d:d400::/432408:840d:d420::/432408:840d:d440::/432408:840d:d600::/432408:840d:d620::/432408:840d:dd00::/432408:840d:dd20::/432408:840d:dd40::/432408:840d:de00::/432408:840d:de20::/432408:840e:dd00::/402408:840e:de00::/402408:840f:1e0::/482408:840f:1e1::/482408:840f:1e2::/482408:840f:1e3::/482408:840f:1e4::/482408:840f:1e5::/482408:84e2::/322408:84e2:80::/422408:84e2:c0::/422408:84e2:180::/422408:84e2:1c0::/422408:84e2:280::/422408:84e2:300::/422408:84e2:400::/422408:84e2:440::/422408:84e2:480::/422408:860c::/322408:860c:1::/482408:860c:2::/482408:860c:4::/462408:860c:3d::/482408:860c:40::/482408:860c:91::/482408:860c:9d::/482408:860c:9e::/482408:860c:b5::/482408:860c:b6::/482408:860c:b7::/482408:860c:ba::/482408:860d::/322408:860e::/322408:860f::/322408:870c::/322408:870c:30::/442408:870c:40::/442408:870c:41::/482408:870c:50::/442408:870c:80::/442408:870c:c0::/442408:870c:130::/442408:870c:140::/442408:870c:1000::/442408:870c:1010::/442408:870c:1020::/442408:870c:1030::/442408:870c:1040::/442408:870c:1050::/442408:870c:1060::/442408:870c:1080::/442408:870c:1090::/442408:870d::/322408:870e::/322408:870f::/322408:880c::/322408:880c::/332408:880c:8000::/332408:880d::/322408:880e::/322408:880f::/322408:8810::/322408:8811::/322408:890c::/322408:890c::/422408:890c:40::/422408:890c:80::/422408:890c:c0::/422408:890c:100::/422408:890c:140::/422408:890c:180::/422408:890c:1c0::/422408:890d::/32

RPKI valid   RPKI invalid   no ROA covers it

Neighbors

Who AS17621 is reached through

The AS just before AS17621 in the paths our looking glass collectors hold, for 60 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.

AS4837 CHINA169-Backbone 56
IRR

Routing registry objects

From the mirrored IRR databases (RADB, the five RIRs and more). Look it up live.

Sourceas-nameMaintained by
APNICCNCGROUP-SHAPNIC-HM

Route objects with origin AS17621: APNIC 491 · RADB 202 · LEVEL3 163 · NTTCOM 154 · ARIN 1

as-sets that list AS17621 (17)
AS-10099AS-ANC-CUSTOMER-PROXY-REGISTERAS-IIJAS-LEVEL3-ASIAAS-LEVEL3-ORIGINS-NAAS-LEVEL3-TRANSITSAS-LJ-NETAS-RESEARCH-CN-CHINAUNICOMAS-SET-10099AS-UDOSAS17621:AS-CNCGROUP-SHAS199746:AS-BLACKLISTAS204464:AS-BLACKLISTAS2497:AS-IIJAS4837:AS-CNCGROUPAS4837:AS-CUGROUPAS9929:AS-CNCGROUP-A
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