ASN Reputation Tracking. The good, the bad, and the ugly.

ASN traffic analysisASN reputation tracking

Examining traffic from ASN routed IP ranges, it becomes relatively clear which ASN's do little to nothing to prevent Internet abuse. Some of these ASN's have surfaced as bona fide security companies and governments, even 'reputable' big tech is guilty of conduct unbecoming.

The data as shown below is a 30 day look back rolling window of all inbound Internet traffic received at this site to date. Only the first 50 of each type are shown. A very interesting pattern appears when you look at the three queries done on the dataset. First all ASN's that only have bad and dangerous IP traffic, the second are ASN's that have no bad IP traffic at all, and the third is a where the amount of 'good' traffic is higher than 'bad' traffic.

Bad reputation ASN report

These ASN network addresses are ideal candidates for firewall DROP (Do not Route Or Peer) lists. The live BAD ASN list as seen below, the amount of bad IP traffic compared to allowed and legitimate IP traffic which in this case is zero. This list shows network ranges that only have bad traffic.

blockedpasstypenetrangenamedescriptioncnturllast seen
3638230 85.217.140.0/24Neterra Ltd.Neterra Ltd.BGneterra.net17/03/2026
533330DCH78.128.114.0/24Tamatiya EOODTamatiya EOODBGlir.bg17/03/2026
418990DCH89.248.160.0/21IP Volume incIP Volume IncSCpinspb.ru28/02/2026
363230 216.180.240.0/21NTHLNetwork Transit Holdings LLCUSnetworktransit.net28/02/2026
347070DCH162.216.148.0/22GOOGLEGoogle LLCUSgoogle.com28/02/2026
340310DCH45.142.192.0/22Bunea TELECOM SRLBunea Telecom SRLRObunea.eu28/02/2026
299780 216.180.240.0/21NTHLNetwork Transit Holdings LLCUSnetworktransit.net17/03/2026
226110 91.231.89.0/24Bha Conseil Sarl FR 28/02/2026
212680DCH185.16.36.0/22Meverywhere sp. z o.o.Meverywhere Sp. z o.o.PLskynode.pl28/02/2026
210860DCH162.216.148.0/22GOOGLEGoogle LLCUSgoogle.com17/03/2026
201680DCH92.63.197.0/24OOO SibirInvestOOO SIBIRINVESTNLngs.ru28/02/2026
199910DCH79.124.56.0/24Tamatiya EOODTamatiya EOODBGlir.bg25/02/2026
192530DCH198.235.24.0/24EXECULINKExeculink Telecom IncCAexeculink.com28/02/2026
181980 91.230.168.0/24Bha Conseil Sarl TR 28/02/2026
156510 91.231.89.0/24Bha Conseil Sarl FR 17/03/2026
151600DCH162.142.125.0/24CENSYS-ARIN-01 US 28/02/2026
130930DCH198.235.24.0/24EXECULINKExeculink Telecom IncCAexeculink.com17/03/2026
128510CDN172.226.0.0/15Akamai International B.V.Akamai International B.V.NLakamai.com17/03/2026
128170 91.230.168.0/24Bha Conseil Sarl TR 17/03/2026
114400DCH77.90.185.0/24Alexhost SrlAlexHost SRLMDo2dc.com28/02/2026
97820DCH162.142.125.0/24CENSYS-ARIN-01 US 17/03/2026
97640DCH64.62.156.0/24AXIA-CONNECT-USA CA 28/02/2026
96380DCH45.87.248.0/22LeaseWeb Netherlands B.V.LeaseWeb Netherlands B.V.NLprobity.ltd17/03/2026
94910DCH195.3.220.0/22Meverywhere sp. z o.o.Meverywhere Sp. z o.o.PLskynode.pl28/02/2026
88670 87.120.190.0/23SKAT TV Ltd.Skat TV Ltd.BGtvskat.net28/02/2026
81430ISP82.147.84.0/22Siberian Telecommunications Ltd.Siberian Telecommunications Ltd.RUsibtel.ru17/03/2026
70510DCH92.63.197.0/24OOO SibirInvestOOO SIBIRINVESTNLngs.ru17/03/2026
66640COM170.39.218.0/23Harmony Hosting SARLHarmony Hosting SarlFRharmony-hosting.com28/02/2026
66010DCH185.242.226.0/24SpectraIP B.V.SpectraIP B.V.NLbreezle.net28/02/2026
65840DCH64.62.156.0/24AXIA-CONNECT-USA CA 17/03/2026
62940DCH79.124.40.0/22MG 2002 Ltd.MG 2002 Ltd.BGgtt.net28/02/2026
62360COM170.39.218.0/23Harmony Hosting SARLHarmony Hosting SarlFRharmony-hosting.com17/03/2026
58590 66.132.128.0/17COGECO-PEER1Aptum TechnologiesCAhostpapa.com28/02/2026
56380DCH64.62.197.0/24HURRICANEHurricane Electric LLCUStennwireless.com17/03/2026
55680 88.210.60.0/22CityLanCom LTDCityLanCom LTDRUcitylan.ru17/03/2026
55170DCH77.90.185.0/24Alexhost SrlAlexHost SRLMDo2dc.com17/03/2026
51910DCH93.123.109.0/24Sarnica-Net LTDSARNICA-NET LTDBGsarnica.net17/03/2026
51160CDN172.225.0.0/20Akamai International B.V.Akamai International B.V.NLakamai.com28/02/2026
49110ISP95.85.192.0/18METRONET s.r.o.METRONET s.r.o.CZmetronet.cz17/03/2026
45830DCH93.123.109.0/24Sarnica-Net LTDSARNICA-NET LTDBGsarnica.net28/02/2026
44830DCH79.124.58.0/23Tamatiya EOODTamatiya EOODBGlir.bg28/02/2026
44380DCH107.150.96.0/20UCLOUD INFORMATION TECHNOLOGY (HK) LIMITEDUCloud Information Technology (HK) LimitedHKzenlayer.com28/02/2026
42560---219.151.160.0/19ChinanetAsia Pacific Network Information CentreCNchinatelecom.com.cn27/02/2026
42300 89.42.231.0/24Compania De Informatica Aplicata SA RO 17/03/2026
41620DCH185.156.73.0/24OOO SibirInvestOOO SIBIRINVESTNLngs.ru16/03/2026
41000 154.83.192.0/18SPRINTLINKSprintUSstingers.io28/02/2026
39750ISP87.121.84.0/22SKAT TV Ltd.Skat TV Ltd.BGtvskat.net28/02/2026
39620 88.210.60.0/22CityLanCom LTDCityLanCom LTDRUcitylan.ru28/02/2026
37800DCH79.124.58.0/23Tamatiya EOODTamatiya EOODBGlir.bg17/03/2026
37640DCH185.224.128.0/22SpectraIP B.V.SpectraIP B.V.NLbreezle.net28/02/2026

NOTE: This data also includes ASN reputation banning. This means that if a certain amount of constant bad IP traffic is received by a defined number of IP addresses within the ASN range within a certain period of time. Then all IP traffic from all addresses of said ASN will will be blocked for a defined period of time.

Good reputation ASN report

The live GOOD ASN list as seen below, the amount of good IP traffic compared to unfriendly IP traffic which in this case must be zero. This list shows network ranges that only have bad traffic.

blockedpasstypenetrangenamedescriptioncnturllast seen
051683ISP91.150.64.0/18TELEKOM SRBIJA a.d.TELEKOM SRBIJA a.d.RStelekom.rs28/02/2026
035860ISP50.200.172.0/22COMCAST-7922Comcast Cable Communications LLCUScomcastbusiness.net28/02/2026
033192ISP91.150.64.0/18TELEKOM SRBIJA a.d.TELEKOM SRBIJA a.d.RStelekom.rs17/03/2026
023225ISP50.200.128.0/22COMCAST-7922Comcast Cable Communications LLCUScomcastbusiness.net17/03/2026
023211ISP50.200.172.0/22COMCAST-7922Comcast Cable Communications LLCUScomcastbusiness.net17/03/2026
019158ISP93.86.0.0/15TELEKOM SRBIJA a.d.TELEKOM SRBIJA a.d.RStelekom.rs17/03/2026
019155ISP178.220.0.0/15TELEKOM SRBIJA a.d.TELEKOM SRBIJA a.d.RStelekom.rs17/03/2026
015544EDU69.74.136.0/21CABLE-NET-1CableVision Systems Corp.UScablevision.com28/02/2026
014783ISP109.198.0.0/19Moja Supernova Doo BeogradMoja Supernova Doo BeogradRSmojasupernova.rs28/02/2026
014707EDU141.39.0.0/16Verein zur Foerderung eines Deutschen ForschungsneVerein zur Foerderung eines Deutschen Forschungsnetzes e.V.DEfu-berlin.de28/02/2026
014350ISP206.41.88.0/21FIBRENOIRE-INTERNETFibrenoire Inc.CAfibrenoire.ca28/02/2026
014347ISP50.206.212.0/22COMCAST-7922Comcast Cable Communications LLCUScomcastbusiness.net28/02/2026
013883 216.113.56.0/23VIDEOTRONVideotron Telecom LteeCAvideotron.com17/03/2026
010082EDU69.74.136.0/21CABLE-NET-1CableVision Systems Corp.UScablevision.com17/03/2026
09576ISP109.198.0.0/19Moja Supernova Doo BeogradMoja Supernova Doo BeogradRSmojasupernova.rs17/03/2026
09534EDU141.39.0.0/16Verein zur Foerderung eines Deutschen ForschungsneVerein zur Foerderung eines Deutschen Forschungsnetzes e.V.DEfu-berlin.de17/03/2026
09310ISP206.41.88.0/21FIBRENOIRE-INTERNETFibrenoire Inc.CAfibrenoire.ca17/03/2026
09310ISP50.206.212.0/22COMCAST-7922Comcast Cable Communications LLCUScomcastbusiness.net17/03/2026
07849ISP83.236.0.0/16Plusnet GmbHPlusnet GmbHDEeifel-net.net28/02/2026
07509 103.232.196.0/22Buroserv Australia Pty LtdBuroserv Australia Pty LtdAUtelemates.com.au28/02/2026
07410COM195.52.0.0/16ecotel communication agEcotel Communication AGDEwebhoster.ag28/02/2026
07398ISP185.190.152.0/22TELEKOM SRBIJA a.d.TELEKOM SRBIJA a.d.RStelekom.rs28/02/2026
07395COM213.61.0.0/16COLT Technology Services Group LimitedColt Technology Services Group LimitedGBopen-sky.it28/02/2026
07386ISP92.42.248.0/21Drustvo za telekomunikacije Orion telekom doo BeogDrustvo za telekomunikacije Orion telekom doo Beograd-ZemunRSoriontelekom.rs28/02/2026
07386ISP178.254.148.0/23Drustvo za telekomunikacije Orion telekom doo BeogDrustvo za telekomunikacije Orion telekom doo Beograd-ZemunRSoriontelekom.rs28/02/2026
07378ISP109.121.32.0/19Drustvo za telekomunikacije Orion telekom doo BeogDrustvo za telekomunikacije Orion telekom doo Beograd-ZemunRSoriontelekom.rs28/02/2026
07376ISP109.72.48.0/22Moja Supernova Doo BeogradMoja Supernova Doo BeogradRSmojasupernova.rs28/02/2026
07370ISP178.254.169.0/24Drustvo za telekomunikacije Orion telekom doo BeogDrustvo za telekomunikacije Orion telekom doo Beograd-ZemunRSoriontelekom.rs28/02/2026
07367ISP78.10.0.0/15Netia SANetia SAPLnetia.pl28/02/2026
07346COM195.185.0.0/16ecotel communication agEcotel Communication AGDEwebhoster.ag28/02/2026
07344ISP212.200.192.0/19TELEKOM SRBIJA a.d.TELEKOM SRBIJA a.d.RStelekom.rs28/02/2026
07325EDU149.205.0.0/16Verein zur Foerderung eines Deutschen ForschungsneVerein zur Foerderung eines Deutschen Forschungsnetzes e.V.DEfu-berlin.de28/02/2026
07319---195.55.168.0/22Telefonica De EspanaTelefonica de EspanaEStelefonica.com28/02/2026
07298ISP217.12.80.0/21Amaliy Aloqalar Biznesi Ltd.Amaliy Aloqalar Biznesi Ltd.UZbcc.com.uz28/02/2026
07193DCH195.70.64.0/19Daisy Communications LtdDaisy Communications LtdGBdaisygroup.com28/02/2026
07187ISP213.30.192.0/181&1 Versatel Deutschland GmbH1&1 Versatel Deutschland GmbHDEversatel.de28/02/2026
07183DCH109.168.0.0/17Irideos S.p.A.Irideos S.p.A.ITirideos.it28/02/2026
07182EDU148.81.128.0/18Naukowa I Akademicka Siec Komputerowa Instytut BadNaukowa i Akademicka Siec Komputerowa Instytut BadawczyPLnask.pl28/02/2026
07180ISP212.200.128.0/18TELEKOM SRBIJA a.d.TELEKOM SRBIJA a.d.RStelekom.rs28/02/2026
06913ISP14.1.64.0/20Link Telecom (NZ) LimitedLink Telecom (NZ) LimitedNZworldnet.co.nz28/02/2026
05923COM212.172.0.0/16ecotel communication agEcotel Communication AGDEwebhoster.ag24/02/2026
05083ISP83.236.0.0/16Plusnet GmbHPlusnet GmbHDEeifel-net.net17/03/2026
05055DCH207.114.248.0/21LVLT-3549Level 3 Parent LLCUScenturylink.com20/02/2026
04904DCH89.202.0.0/17Telecitygroup International LimitedTeleCityGroup International LimitedGBhostingpalvelu.fi28/02/2026
04803COM213.61.0.0/16COLT Technology Services Group LimitedColt Technology Services Group LimitedGBopen-sky.it17/03/2026
04801COM195.52.0.0/16ecotel communication agEcotel Communication AGDEwebhoster.ag17/03/2026
04795ISP178.183.192.0/19T-Mobile Polska S.A.T-Mobile Polska S.A.PLt-mobile.pl17/03/2026
04795ISP185.190.152.0/22TELEKOM SRBIJA a.d.TELEKOM SRBIJA a.d.RStelekom.rs17/03/2026
04794ISP212.200.192.0/19TELEKOM SRBIJA a.d.TELEKOM SRBIJA a.d.RStelekom.rs17/03/2026
04786ISP188.255.180.0/22Drustvo za telekomunikacije Orion telekom doo BeogDrustvo za telekomunikacije Orion telekom doo Beograd-ZemunRSoriontelekom.rs17/03/2026

Poor reputation ASN report

The live OK, MAYBE ASN list as seen below, the amount of good IP traffic that is larger than IP traffic aimed at ports and services clearly indicating malicious or sniffing activity. This list shows network ranges that have good and bad traffic.

blockedpasstypenetrangenamedescriptioncnturllast seen
517610816SES66.249.64.0/19GOOGLEGoogle LLCUSgoogle.com28/02/2026
22727985DCH74.125.0.0/16GOOGLEGoogle LLCUSgoogle.com28/02/2026
21479336 136.0.192.0/19EGIHOSTINGEGIHostingUSegihosting.com15/03/2026
17853438DCH20.192.0.0/10MICROSOFT-CORP-MSN-AS-BLOCKMICROSOFT-CORP-MSN-AS-BLOCKUSmicrosoft.com28/02/2026
14673103DCH52.160.0.0/11MICROSOFT-CORP-MSN-AS-BLOCKMICROSOFT-CORP-MSN-AS-BLOCKUSmicrosoft.com28/02/2026
10755241DCH13.64.0.0/11MICROSOFT-CORP-MSN-AS-BLOCKMICROSOFT-CORP-MSN-AS-BLOCKUSmicrosoft.com28/02/2026
9111397DCH20.192.0.0/10MICROSOFT-CORP-MSN-AS-BLOCKMICROSOFT-CORP-MSN-AS-BLOCKUSmicrosoft.com17/03/2026
8813177DCH13.64.0.0/11MICROSOFT-CORP-MSN-AS-BLOCKMICROSOFT-CORP-MSN-AS-BLOCKUSmicrosoft.com17/03/2026
789822DCH3.208.0.0/12AMAZON-AESAmazon.com Inc.USamazon.com28/02/2026
7581576DCH52.160.0.0/11MICROSOFT-CORP-MSN-AS-BLOCKMICROSOFT-CORP-MSN-AS-BLOCKUSmicrosoft.com17/03/2026
464485DCH44.224.0.0/11AMAZON-02Amazon.com Inc.USamazon.com28/02/2026
425469DCH43.128.0.0/14Tencent Building, Kejizhongyi AvenueTencent Building Kejizhongyi AvenueCNtencent.com17/03/2026
391524ISP125.24.0.0/14TOT Public Company LimitedTOT Public Company LimitedTHtot.co.th28/02/2026
326348DCH3.208.0.0/12AMAZON-AESAmazon.com Inc.USamazon.com17/03/2026
316349DCH20.150.0.0/15MICROSOFT-CORP-MSN-AS-BLOCKMICROSOFT-CORP-MSN-AS-BLOCKUSmicrosoft.com28/02/2026
289321DCH35.80.0.0/12AMAZON-02Amazon.com Inc.USamazon.com28/02/2026
2782438ISP74.7.0.0/16ATL-CBEYONDCbeyond Communications LLCUScbeyond.net28/02/2026
22912423SES66.249.64.0/19GOOGLEGoogle LLCUSgoogle.com17/03/2026
217252DCH217.154.0.0/16Kcom Group LimitedKcom Group LimitedGBkcom.com28/02/2026
2033139ISP14.160.0.0/11VNPT CorpVNPT CorpVNvnpt.com.vn28/02/2026
1981046DCH217.113.192.0/20L'ile aux surfers s.a.r.l.L'ile aux surfers s.a.r.l.FRcineteck-fr.com25/02/2026
1852115ISP14.160.0.0/11VNPT CorpVNPT CorpVNvnpt.com.vn17/03/2026
183210DCH52.200.0.0/13AMAZON-AESAmazon.com Inc.USamazon.com17/03/2026
181881SES207.46.0.0/19MICROSOFT-CORP-MSN-AS-BLOCKMICROSOFT-CORP-MSN-AS-BLOCKUSmicrosoft.com27/02/2026
179481DCH52.0.0.0/13AMAZON-AESAmazon.com Inc.USamazon.com28/02/2026
1781404ISP86.128.0.0/10British Telecommunications PLCBritish Telecommunications PLCGBbt.com28/02/2026
1661681ISP113.160.0.0/11VNPT CorpVNPT CorpVNvnpt.com.vn17/03/2026
166334DCH68.220.0.0/15MICROSOFT-CORP-MSN-AS-BLOCKMICROSOFT-CORP-MSN-AS-BLOCKUSmicrosoft.com28/02/2026
159326ISP82.0.0.0/11Virgin Media LimitedVirgin Media LimitedGBvirginmedia.com28/02/2026
151250DCH54.236.0.0/15AMAZON-AESAmazon.com Inc.USamazon.com28/02/2026
147901DCH162.120.0.0/16SUPERVALU US 28/02/2026
145191DCH54.172.0.0/14AMAZON-AESAmazon.com Inc.USamazon.com17/03/2026
1432401ISP113.160.0.0/11VNPT CorpVNPT CorpVNvnpt.com.vn28/02/2026
1422401ISP172.56.0.0/14T-MOBILE-AS21928T-Mobile USA Inc.USt-mobile.com28/02/2026
142687DCH136.243.0.0/16Hetzner Online GmbHHetzner Online GmbHDEhetzner.de17/03/2026
134559DCH142.250.0.0/15GOOGLEGoogle LLCUSgoogle.com28/02/2026
126512ISP82.0.0.0/11Virgin Media LimitedVirgin Media LimitedGBvirginmedia.com17/03/2026
126421DCH45.206.0.0/16Africa-on-Cloud-ASAFRICA-ON-CLOUD-ASZAhgc.com.hk17/03/2026
123965ISP182.52.0.0/15TOT Public Company LimitedTOT Public Company LimitedTHtot.co.th28/02/2026
118310DCH65.21.0.0/16Hetzner Online GmbHHetzner Online GmbHDEhetzner.de28/02/2026
118137ISP82.32.0.0/12Virgin Media LimitedVirgin Media LimitedGBvirginmedia.com27/02/2026
117461MOB182.0.0.0/12PT. Telekomunikasi SelularPT. Telekomunikasi SelularIDtelkomsel.com28/02/2026
117143DCH107.20.0.0/14AMAZON-AESAmazon.com Inc.USamazon.com28/02/2026
111158 47.79.192.0/19WINDSTREAMWindstream Communications LLCUSearthlink.net26/02/2026
108395ISP88.160.0.0/11Free SASFree SASFRfree.fr26/02/2026
108278DCH54.236.0.0/15AMAZON-AESAmazon.com Inc.USamazon.com17/03/2026
107861ISP73.0.0.0/9COMCAST-7922Comcast Cable Communications LLCUScomcastbusiness.net28/02/2026
107252DCH34.160.0.0/12GOOGLEGoogle LLCUSgoogle.com28/02/2026
1051433ISP172.56.0.0/14T-MOBILE-AS21928T-Mobile USA Inc.USt-mobile.com17/03/2026
1051221 145.255.128.0/21LeaseWeb Netherlands B.V.LeaseWeb Netherlands B.V.NLprobity.ltd28/02/2026
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