AS21559
OSNET- Announced prefixes
- 46
- Upstreams
- 6
- Peers
- 36
- Downstreams
- 39
Adjacent ASNs
Neighbor nodes aren't clickable. To look up an ASN, use the ASN lookup page
All Neighbor ASNs
Upstream6
Buys transit from them
- AS174
- AS1299
- AS3257
- AS6762
- AS6939
- AS12956
Peer36
Settlement-free traffic exchange
- AS286
- AS1031
- AS1828
- AS2734
- AS3303
- AS4181
- AS4230
- AS4826
- AS6057
- AS7195
- AS8220
- AS9002
- AS11039
- AS13786
- AS14537
- AS16552
- AS19151
- AS20080
- AS23379
- AS24482
- AS32590
- AS35280
- AS37468
- AS37721
- AS49544
- AS52320
- AS53828
- AS57695
- AS58453
- AS61568
- AS137409
- AS199524
- AS263152
- AS263237
- AS271253
- AS398465
Downstream39
Buys transit from this AS
- AS3838
- AS6208
- AS10524
- AS14534
- AS18895
- AS21944
- AS22109
- AS22555
- AS27213
- AS30294
- AS36435
- AS39963
- AS40414
- AS40880
- AS46868
- AS46869
- AS46941
- AS54835
- AS62931
- AS63393
- AS271945
- AS393573
- AS393678
- AS395471
- AS395502
- AS396377
- AS396502
- AS396899
- AS397072
- AS397359
- AS397399
- AS397470
- AS397598
- AS398317
- AS399126
- AS399294
- AS399881
- AS400154
- AS400354
Recent Prefix Changes
latest 2IP prefixes this ASN started or stopped announcing (derived by diffing successive data syncs).
- Withdrawn
192.254.108.0/242026-08-13 - Announced
192.254.108.0/242026-08-13
Data: local · Updated 2026-09-03 15:53:36