221.122.240.0/20 IDC, China Telecommunications Corporation
Announced by AS23724 IDC, China Telecommunications Corporation. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 221.122.240.0/20
Prefix
Origin
AS23724 CHINANET-IDC-BJ-AP
RPKI
RPKI valid
Size
4,096 addresses
Less specific
More specifics
0
IRR route objects
3 exact, 6 covering
Origin since
2026-10-17 20:01 UTC
Paths
How 221.122.240.0/20 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 23724
| Origin | AS23724 IDC, China Telecommunications Corporation |
| Origin code | IGP |
| Communities | 174:21001 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 9d 23h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 4134 23724
| Origin | AS23724 IDC, China Telecommunications Corporation |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 10d 7h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6461 4134 23724
| Origin | AS23724 IDC, China Telecommunications Corporation |
| Origin code | IGP |
| Communities | 6461:5997 36295:100 36295:6461 |
| Updated | 2d 12h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS23724 to originate 221.122.240.0/20 up to /20. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 221.122.240.0/20 | /20 | AS9808 CHINAMOBILE-CN | APNIC |
| 221.122.240.0/20 | /20 | AS23724 CHINANET-IDC-BJ-AP | APNIC |
| 221.122.224.0/19 | /19 | AS23724 CHINANET-IDC-BJ-AP | 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 |
|---|---|---|---|---|
| 221.122.240.0/20 | AS4134 CHINANET-BACKBONE | LEVEL3 | Proxy-registered route object | XINGXUNTECHLTD-MNT |
| 221.122.240.0/20 | AS9808 CHINAMOBILE-CN | RADB | CMI (Customer Route) | MAINT-AS58453 |
| 221.122.240.0/20 | AS23724 CHINANET-IDC-BJ-AP | RADB | China Telecom Beijing Co. Ltd. | MAINT-AS23724 |
| 221.122.224.0/19 covering | AS4134 CHINANET-BACKBONE | LEVEL3 | Proxy-registered route object | XINGXUNTECHLTD-MNT |
| 221.122.224.0/19 covering | AS23724 CHINANET-IDC-BJ-AP | RADB | China Telecom Beijing Co. Ltd. | MAINT-AS23724 |
| 221.122.192.0/18 covering | AS4808 CHINA169-BJ | NTTCOM | CMI IP Transit | MAINT-CMI-INT-HK |
| 221.122.192.0/18 covering | AS4808 CHINA169-BJ | RADB | CMI (Customer Route) | MAINT-AS58453 |
| 221.122.0.0/16 covering | AS24138 CTTNET | NTTCOM | CMI IP Transit | MAINT-CMI-INT-HK |
| 221.122.0.0/16 covering | AS24138 CTTNET | RADB | CMI (Customer Route) | MAINT-AS58453 |
Less specific
Covering prefixes
Announced prefixes that contain this one, most specific first.