ResearchRouting table, looking glass, RPKI & IRR

220.248.224.0/19 CHINA UNICOM China169 Backbone

Announced by AS4837 CHINA UNICOM China169 Backbone. RPKI valid Seen by 5 of our 5 looking glass sessions.

Summary

What the table says about 220.248.224.0/19

Prefix
220.248.224.0/19
Origin
AS4837 CHINA169-Backbone
RPKI
RPKI valid
Size
8,192 addresses
Less specific
220.248.192.0/18 AS4837 CHINA169-Backbone
More specifics
26
IRR route objects
4 exact, 2 covering
In RouteViews
2026-10-15 16:02 UTC
Paths

How 220.248.224.0/19 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
OriginAS4837 CHINA UNICOM China169 Backbone
Origin codeIGP
Communities174:21001 174:22013 36601:150 36601:174 36601:2001
Updated7d 14h ago
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 7029 1299 4837
OriginAS4837 CHINA UNICOM China169 Backbone
Origin codeIGP
Communities903:900 903:13760
Updated7d 22h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6461 4837
OriginAS4837 CHINA UNICOM China169 Backbone
Origin codeIGP
Communities6461:5997 36295:100 36295:6461
Updated3h 2m ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Jacksonville, FL)Collector-2-COCOA-FL36295 6939 4837
OriginAS4837 CHINA UNICOM China169 Backbone
Origin codeIGP
Communitiesnone
Updated7d 22h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Orlando, FL)Collector-2-COCOA-FL36295 174 4837×2
OriginAS4837 CHINA UNICOM China169 Backbone
Origin codeIGP
Communities174:21001 174:22013 36295:100 36295:174
Updated11d 15h ago
RPKI

Route origin authorizations

Covered by a ROA authorizing AS4837 to originate 220.248.224.0/19 up to /19. Validate another origin.

ROA prefixMax lengthAuthorized originTrust anchor
220.248.224.0/19/19AS4837 CHINA169-BackboneAPNIC
220.248.192.0/18/18AS4837 CHINA169-BackboneAPNIC
IRR

Route objects

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

RouteOriginSourceDescriptionMaintained by
220.248.224.0/19AS4837 CHINA169-BackboneAPNICChina Unicom China169 NetworkMAINT-CNCGROUP-RR
220.248.224.0/19AS4837 CHINA169-BackboneLEVEL3Proxy-registered route objectLEVEL3-MNT
220.248.224.0/19AS4837 CHINA169-BackboneNTTCOMCMI IP TransitMAINT-CMI-INT-HK
220.248.224.0/19AS4837 CHINA169-BackboneRADBCMI (Customer Route)MAINT-AS58453
220.248.192.0/18 coveringAS4837 CHINA169-BackboneAPNICChina Unicom CHINA169 NetworkMAINT-CNCGROUP-RR
220.248.0.0/14 coveringAS9929 CUIIAPNICChina Unicom CncNetMAINT-CNCGROUP-RR
Less specific

Covering prefixes

Announced prefixes that contain this one, most specific first.

220.248.192.0/18 AS4837 CHINA169-Backbone
More specific

Prefixes inside 220.248.224.0/19

26 announced prefixes fall inside this one.

Show the 26 prefixes
220.248.224.0/24 AS140726 UNICOM-HEFEI-MAN220.248.226.0/24 AS140726 UNICOM-HEFEI-MAN220.248.228.0/24 AS140726 UNICOM-HEFEI-MAN220.248.229.0/24 AS140726 UNICOM-HEFEI-MAN220.248.230.0/24 AS140726 UNICOM-HEFEI-MAN220.248.231.0/24 AS140726 UNICOM-HEFEI-MAN220.248.232.0/24 AS140726 UNICOM-HEFEI-MAN220.248.233.0/24 AS140726 UNICOM-HEFEI-MAN220.248.234.0/24 AS140726 UNICOM-HEFEI-MAN220.248.235.0/24 AS140726 UNICOM-HEFEI-MAN220.248.237.0/24 AS140726 UNICOM-HEFEI-MAN220.248.238.0/24 AS140726 UNICOM-HEFEI-MAN220.248.239.0/24 AS140726 UNICOM-HEFEI-MAN220.248.242.0/24 AS140726 UNICOM-HEFEI-MAN220.248.243.0/24 AS140726 UNICOM-HEFEI-MAN220.248.244.0/24 AS140726 UNICOM-HEFEI-MAN220.248.245.0/24 AS140726 UNICOM-HEFEI-MAN220.248.246.0/24 AS140726 UNICOM-HEFEI-MAN220.248.248.0/24 AS140726 UNICOM-HEFEI-MAN220.248.249.0/24 AS140726 UNICOM-HEFEI-MAN220.248.250.0/24 AS140726 UNICOM-HEFEI-MAN220.248.251.0/24 AS140726 UNICOM-HEFEI-MAN220.248.252.0/24 AS140726 UNICOM-HEFEI-MAN220.248.253.0/24 AS140726 UNICOM-HEFEI-MAN220.248.254.0/24 AS140726 UNICOM-HEFEI-MAN220.248.255.0/24 AS140726 UNICOM-HEFEI-MAN
Tools

Check 220.248.224.0/19 live

Looking glassIP to ASN APIRPKI APIIRR API