209.55.128.0/18 ZSCALER, INC.
Announced by AS22616 ZSCALER, INC. RPKI not found Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 209.55.128.0/18
Prefix
Origin
AS22616 ZSCALER-SJC1
RPKI
RPKI not found
Size
16,384 addresses
Less specific
none
More specifics
63
IRR route objects
1 exact, 0 covering
In RouteViews
2026-10-14 12:02 UTC
Paths
How 209.55.128.0/18 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 3356 22616
| Origin | AS22616 ZSCALER, INC. |
| Origin code | IGP |
| Communities | 174:21000 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 10h 0m ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 22616
| Origin | AS22616 ZSCALER, INC. |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 6d 20h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 3356 22616
| Origin | AS22616 ZSCALER, INC. |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 39m 32s ago |
RPKI
Route origin authorizations
No ROA covers this prefix, so RPKI has nothing to say about who may originate it. Validate another origin.
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 |
|---|---|---|---|---|
| 209.55.128.0/18 | AS22616 ZSCALER-SJC1 | RADB | Zscaler SJC4 | MAINT-AS53444 |
More specific
Prefixes inside 209.55.128.0/18
63 announced prefixes fall inside this one.
Show the 63 prefixes
209.55.128.0/24 AS62044 ZSCALER-EMEA209.55.129.0/24 AS53813 ZSCALER-INC209.55.130.0/24 AS53813 ZSCALER-INC209.55.132.0/24 AS22616 ZSCALER-SJC1209.55.133.0/24 AS53813 ZSCALER-INC209.55.134.0/24 AS53813 ZSCALER-INC209.55.135.0/24 AS22616 ZSCALER-SJC1209.55.136.0/24 AS53813 ZSCALER-INC209.55.137.0/24 AS53813 ZSCALER-INC209.55.138.0/24 AS62044 ZSCALER-EMEA209.55.139.0/24 AS62044 ZSCALER-EMEA209.55.140.0/24 AS53813 ZSCALER-INC209.55.141.0/24 AS22616 ZSCALER-SJC1209.55.142.0/24 AS22616 ZSCALER-SJC1209.55.143.0/24 AS62044 ZSCALER-EMEA209.55.144.0/24 AS62044 ZSCALER-EMEA209.55.145.0/24 AS22616 ZSCALER-SJC1209.55.146.0/24 AS22616 ZSCALER-SJC1209.55.147.0/24 AS22616 ZSCALER-SJC1209.55.148.0/24 AS22616 ZSCALER-SJC1209.55.149.0/24 AS22616 ZSCALER-SJC1209.55.150.0/24 AS53813 ZSCALER-INC209.55.151.0/24 AS53813 ZSCALER-INC209.55.152.0/24 AS62044 ZSCALER-EMEA209.55.153.0/24 AS62044 ZSCALER-EMEA209.55.154.0/24 AS62044 ZSCALER-EMEA209.55.155.0/24 AS22616 ZSCALER-SJC1209.55.156.0/24 AS62044 ZSCALER-EMEA209.55.157.0/24 AS53813 ZSCALER-INC209.55.158.0/24 AS22616 ZSCALER-SJC1209.55.159.0/24 AS22616 ZSCALER-SJC1209.55.160.0/24 AS22616 ZSCALER-SJC1209.55.161.0/24 AS62044 ZSCALER-EMEA209.55.162.0/24 AS22616 ZSCALER-SJC1209.55.163.0/24 AS22616 ZSCALER-SJC1209.55.164.0/24 AS22616 ZSCALER-SJC1209.55.165.0/24 AS22616 ZSCALER-SJC1209.55.166.0/24 AS53813 ZSCALER-INC209.55.167.0/24 AS53813 ZSCALER-INC209.55.168.0/24 AS62044 ZSCALER-EMEA209.55.169.0/24 AS53813 ZSCALER-INC209.55.170.0/24 AS53813 ZSCALER-INC209.55.171.0/24 AS62044 ZSCALER-EMEA209.55.172.0/24 AS62044 ZSCALER-EMEA209.55.173.0/24 AS62044 ZSCALER-EMEA209.55.174.0/24 AS22616 ZSCALER-SJC1209.55.175.0/24 AS22616 ZSCALER-SJC1209.55.176.0/24 AS62044 ZSCALER-EMEA209.55.177.0/24 AS53813 ZSCALER-INC209.55.178.0/24 AS62044 ZSCALER-EMEA209.55.179.0/24 AS62044 ZSCALER-EMEA209.55.180.0/24 AS62044 ZSCALER-EMEA209.55.181.0/24 AS62044 ZSCALER-EMEA209.55.182.0/24 AS53813 ZSCALER-INC209.55.183.0/24 AS22616 ZSCALER-SJC1209.55.184.0/24 AS53813 ZSCALER-INC209.55.185.0/24 AS62044 ZSCALER-EMEA209.55.186.0/24 AS62044 ZSCALER-EMEA209.55.187.0/24 AS22616 ZSCALER-SJC1209.55.188.0/24 AS22616 ZSCALER-SJC1209.55.189.0/24 AS62044 ZSCALER-EMEA209.55.190.0/24 AS62044 ZSCALER-EMEA209.55.191.0/24 AS62044 ZSCALER-EMEA