203.76.208.0/22 China Unicom Shanghai network
Announced by AS17621 China Unicom Shanghai network. RPKI valid Seen by 5 of our 5 looking glass sessions. Also originated by AS4811
Summary
What the table says about 203.76.208.0/22
Prefix
Origin
AS17621 CNCGROUP-SH
RPKI
RPKI valid
Size
1,024 addresses
Less specific
none
More specifics
0
IRR route objects
3 exact, 6 covering
In RouteViews
2026-10-13 04:03 UTC
Paths
How 203.76.208.0/22 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 4134 4811
| Origin | AS4811 China Telecom (Group) |
| Origin code | IGP |
| Communities | 174:21001 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 5d 4h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 4134 4811
| Origin | AS4811 China Telecom (Group) |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 5d 12h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 4134 4811
| Origin | AS4811 China Telecom (Group) |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 5d 12h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS17621 to originate 203.76.208.0/22 up to /22. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 203.76.208.0/22 | /22 | AS4811 CHINANET-SHANGHAI-MAN | APNIC |
| 203.76.208.0/22 | /22 | AS17621 CNCGROUP-SH | APNIC |
| 203.76.208.0/22 | /22 | AS63619 SKYUNNET | APNIC |
IRR
Route objects
Registered in the IRR for this prefix and the ones covering it. Look it up live.
| Route | Origin | Source | Description | Maintained by |
|---|---|---|---|---|
| 203.76.208.0/22 | AS4134 CHINANET-BACKBONE | LEVEL3 | Proxy-registered route object | XINGXUNTECHLTD-MNT |
| 203.76.208.0/22 | AS17621 CNCGROUP-SH | LEVEL3 | Proxy-registered route object | XINGXUNTECHLTD-MNT |
| 203.76.208.0/22 | AS4811 CHINANET-SHANGHAI-MAN | RADB | SHIDC | MAINT-AS4812 |
| 203.76.208.0/20 covering | AS17970 SKYBB-AS-AP | NTTCOM | Tri-ISys | MAINT-PLDT |
| 203.76.208.0/20 covering | AS4775 GLOBE-TELECOM-AS | RADB | Proxy-registered route object | MAINT-AS9304 |
| 203.76.192.0/19 covering | AS17970 SKYBB-AS-AP | NTTCOM | Proxy-registered route object | MAINT-AS9304 |
| 203.76.192.0/19 covering | AS4775 GLOBE-TELECOM-AS | RADB | Proxy-registered route object | MAINT-AS9304 |
| 203.76.192.0/19 covering | AS23930 VITROINC-AS-AP | REACH | REACH (Customer Route) | MAINT-REACH-NOC |
| 203.76.192.0/18 covering | AS17970 SKYBB-AS-AP | RADB | PACNET (proxy-registered route object) | MAINT-AS4637 |