AS174

Cogent Communications, LLC

Announced prefixes: 9,901
Upstreams: 0
Peers: 85
Downstreams: 6,472

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

Peer85

Settlement-free traffic exchange

AS209
AS286
AS559
AS577
AS701
AS702
AS703
AS983
AS1273
AS1299
AS2495
AS2686
AS2828
AS2914
AS3257
AS3320
AS3356
AS3491
AS5400
AS5511
AS5606
AS6453
AS6461
AS6507
AS6762
AS6830
AS6866
AS7018
AS7922
AS9924
AS11666
AS12676
AS12731
AS12956
AS13819
AS14135
AS14282
AS15267
AS17511
AS17559
AS20836
AS21804
AS21949
AS23764
AS24904
AS25180
AS25198
AS26141
AS28124
AS28419
AS28768
AS29457
AS31083
AS32787
AS33554
AS33597
AS39781
AS40068
AS41327
AS41887
AS42295
AS43338
AS43350
AS43893
AS52663
AS53264
AS56911
AS57264
AS58807
AS61680
AS62365
AS62887
AS134555
AS136237
AS198726
AS199569
AS205769
AS211083
AS215955
AS262865
AS266438
AS266900
AS274806
AS400215
AS400619

Downstream6,472

Buys transit from this AS

AS3
AS4
AS14
AS18
AS20
AS29
AS34
AS55
AS62
AS72
AS81
AS91
AS92
AS98
AS101
AS103
AS111
AS122
AS137
AS156
AS160
AS210
AS237
AS264
AS376
AS513
AS557
AS558
AS693
AS766
AS803
AS812
AS819
AS835
AS852
AS889
AS892
AS896
AS897
AS902
AS906
AS927
AS930
AS931
AS932
AS939
AS954
AS964
AS971
AS973
AS978
AS979
AS984
AS992
AS998
AS999
AS1000
AS1008
AS1031
AS1065
AS1086
AS1088
AS1089
AS1096
AS1100
AS1204
AS1213
AS1246
AS1257
AS1265
AS1286
AS1289
AS1311
AS1312
AS1355
AS1378
AS1405
AS1406
AS1408
AS1411
AS1419
AS1422
AS1423
AS1439
AS1441
AS1442
AS1443
AS1448
AS1547
AS1605
AS1610
AS1613
AS1616
AS1622
AS1635
AS1647
AS1680
AS1742
AS1764
AS1790
AS1798
AS1825
AS1836
AS1886
AS1916
AS1930
AS1968
AS1996
AS2018
AS2033
AS2044
AS2107
AS2108
AS2149
AS2200
AS2288
AS2485
AS2497
AS2516
AS2518
AS2519
AS2544
AS2549
AS2552
AS2567
AS2572
AS2589
AS2611
AS2614
AS2637
AS2707
AS2711
AS2721
AS2728
AS2729
AS2731
AS2857
AS2901
AS2903
AS3061
AS3064
AS3130
AS3132
AS3170
AS3213
AS3238
AS3245
AS3252
AS3255
AS3266
AS3302
AS3303
AS3326
AS3330
AS3360
AS3389
AS3399
AS3401
AS3464
AS3479
AS3512
AS3580
AS3599
AS3653
AS3663
AS3685
AS3701
AS3714
AS3741
AS3755
AS3777
AS3778
AS3782
AS3786
AS3789
AS3795
AS3819
AS3833
AS3851
AS3853
AS3855
AS3927
AS4010
AS4046
AS4058
AS4134
AS4136
AS4190
AS4195
AS4213
AS4226
AS4230
AS4246
AS4261
AS4314
AS4373
AS4385
AS4455
AS4474
AS4508

6,272 more not shown (truncated)

Recent Prefix Changes

latest 50

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

Announced38.7.113.0/242026-10-12
Announced38.7.118.0/242026-10-12
Withdrawn38.66.213.0/242026-10-12
Withdrawn38.66.214.0/242026-10-12
Announced38.100.158.0/232026-10-12
Announced38.158.200.0/232026-10-12
Announced38.191.198.0/242026-10-12
Withdrawn38.196.252.0/232026-10-12
Withdrawn38.213.234.0/242026-10-12
Announced38.225.220.0/242026-10-12
Withdrawn38.244.226.0/242026-10-12
Announced38.247.160.0/212026-10-12
Announced38.252.32.0/242026-10-12
Announced38.252.51.0/242026-10-12
Announced38.196.252.0/232026-10-12
Withdrawn205.164.208.0/222026-10-12
Withdrawn38.127.221.0/242026-10-11
Withdrawn38.211.39.0/242026-10-11
Withdrawn51.241.62.0/242026-10-11
Withdrawn154.59.131.0/242026-10-11
Announced205.164.208.0/222026-10-11
Withdrawn38.7.115.0/242026-10-11
Withdrawn38.225.111.0/242026-10-11
Withdrawn82.108.130.0/242026-10-11
Withdrawn87.86.18.0/242026-10-11
Withdrawn216.28.146.0/242026-10-11
Announced38.27.162.0/242026-10-11
Withdrawn38.35.156.0/232026-10-11
Withdrawn38.35.248.0/222026-10-11
Announced38.225.111.0/242026-10-11
Announced154.59.131.0/242026-10-11
Announced38.7.115.0/242026-10-11
Announced38.35.156.0/232026-10-11
Announced38.35.248.0/222026-10-11
Announced38.127.221.0/242026-10-11
Announced38.211.39.0/242026-10-11
Withdrawn38.252.206.0/242026-10-11
Announced216.28.146.0/242026-10-11
Withdrawn38.10.95.0/242026-10-11
Withdrawn38.22.219.0/242026-10-11
Withdrawn38.59.131.0/242026-10-11
Withdrawn149.100.138.0/242026-10-11
Withdrawn38.133.68.0/232026-10-11
Withdrawn38.135.160.0/232026-10-11
Withdrawn38.135.163.0/242026-10-11
Withdrawn38.135.164.0/242026-10-11
Withdrawn38.196.251.0/242026-10-11
Withdrawn204.157.242.0/242026-10-11
Announced38.59.131.0/242026-10-10
Withdrawn38.65.142.0/242026-10-10

Data: local · Updated 2026-10-12 11:17:14