AS209

CenturyLink Communications, LLC

Announced prefixes: 4,956
Upstreams: 0
Peers: 23
Downstreams: 356

Adjacent ASNs

Neighbor nodes aren't clickable. To look up an ASN, use the ASN lookup page

All Neighbor ASNs

Upstream0

Buys transit from them

None

Peer23

Settlement-free traffic exchange

AS174
AS286
AS701
AS1299
AS2828
AS2914
AS3257
AS3320
AS3356
AS3491
AS5511
AS6453
AS6461
AS6762
AS6830
AS7018
AS11996
AS12956
AS14329
AS17143
AS26133
AS55044
AS393672

Downstream356

Buys transit from this AS

AS65
AS210
AS297
AS1401
AS1446
AS3389
AS3465
AS3561
AS3743
AS3909
AS3910
AS4015
AS4296
AS4297
AS4539
AS4566
AS4911
AS5694
AS6105
AS6109
AS6223
AS6224
AS6373
AS6595
AS6946
AS7105
AS7191
AS7359
AS7743
AS7926
AS8015
AS10361
AS10370
AS10599
AS10655
AS10695
AS10780
AS10939
AS10966
AS11255
AS11275
AS11283
AS11651
AS11690
AS11710
AS11842
AS11857
AS11985
AS12050
AS12086
AS12113
AS12156
AS12225
AS12238
AS13325
AS13476
AS13485
AS13516
AS13524
AS13548
AS13659
AS13684
AS13715
AS13750
AS13813
AS13866
AS13978
AS14010
AS14203
AS14242
AS14438
AS14459
AS14603
AS14622
AS14848
AS14899
AS14921
AS15073
AS15097
AS15234
AS15307
AS16388
AS16417
AS16491
AS16546
AS16741
AS16746
AS16756
AS16809
AS16825
AS16871
AS17073
AS17094
AS17150
AS17242
AS17385
AS17402
AS18445
AS18500
AS18530
AS18543
AS18659
AS18693
AS18874
AS18898
AS19013
AS19149
AS19390
AS19452
AS19571
AS19694
AS19707
AS19709
AS19800
AS19886
AS19904
AS20145
AS20274
AS20293
AS20380
AS21509
AS21660
AS21763
AS21803
AS21904
AS21931
AS22032
AS22097
AS22104
AS22134
AS22155
AS22230
AS22266
AS22310
AS22451
AS22522
AS22523
AS22525
AS22561
AS22587
AS22607
AS23099
AS23172
AS23173
AS23175
AS23249
AS23255
AS23458
AS25621
AS25628
AS25825
AS25992
AS26017
AS26088
AS26151
AS26326
AS26343
AS26485
AS26579
AS26741
AS26791
AS26848
AS26859
AS26891
AS26931
AS26959
AS27011
AS27013
AS27202
AS27285
AS27377
AS27554
AS27592
AS29207
AS29759
AS29842
AS29943
AS29989
AS30089
AS30197
AS30221
AS30251
AS30260
AS30309
AS30331
AS30401
AS30667
AS31752
AS31825
AS31865
AS31911
AS32013
AS32083
AS32153
AS32175
AS32186
AS32231
AS32312
AS32904
AS33222

156 more not shown (truncated)

Recent Prefix Changes

latest 50

IP prefixes this ASN started or stopped announcing (derived by diffing successive data syncs).

Withdrawn65.114.255.0/242026-09-02
Withdrawn65.121.12.0/222026-09-02
Announced198.204.121.0/242026-09-02
Announced198.204.122.0/242026-09-02
Announced63.229.162.0/242026-09-02
Announced65.114.255.0/242026-09-02
Announced65.121.12.0/222026-09-02
Announced67.7.194.0/242026-09-02
Announced207.225.52.0/242026-09-02
Announced208.47.97.0/242026-09-02
Announced65.40.204.0/222026-09-01
Announced65.41.76.0/232026-09-01
Withdrawn65.155.47.0/242026-09-01
Announced67.77.64.0/222026-09-01
Announced71.0.226.0/232026-09-01
Announced71.1.42.0/242026-09-01
Announced71.1.44.0/222026-09-01
Announced71.2.112.0/222026-09-01
Announced76.4.40.0/242026-09-01
Announced76.4.47.0/242026-09-01
Announced184.7.248.0/212026-09-01
Announced65.155.47.0/242026-09-01
Withdrawn184.7.19.0/242026-09-01
Withdrawn184.7.25.0/242026-09-01
Withdrawn184.7.29.0/242026-09-01
Withdrawn184.7.30.0/242026-09-01
Announced204.131.46.0/242026-09-01
Announced204.131.48.0/242026-09-01
Announced64.45.240.0/212026-08-31
Announced65.40.84.0/222026-08-31
Announced65.40.108.0/232026-08-31
Announced65.40.111.0/242026-08-31
Announced65.41.32.0/222026-08-31
Announced65.41.45.0/242026-08-31
Announced65.41.46.0/242026-08-31
Announced65.41.168.0/242026-08-31
Announced65.41.170.0/232026-08-31
Announced65.41.172.0/232026-08-31
Announced65.41.232.0/222026-08-31
Announced65.41.252.0/232026-08-31
Announced65.41.255.0/242026-08-31
Announced67.76.40.0/212026-08-31
Announced67.76.97.0/242026-08-31
Announced67.76.98.0/232026-08-31
Announced67.76.100.0/222026-08-31
Announced67.76.108.0/222026-08-31
Announced67.76.230.0/232026-08-31
Announced67.77.0.0/212026-08-31
Announced67.77.14.0/232026-08-31
Announced67.77.50.0/232026-08-31

Data: local · Updated 2026-09-02 15:23:33