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
3134500 81.30.96.0/20Deutsche Telekom AGDeutsche Telekom AGDEtelekom.de06/05/2026
765380 85.217.140.0/24Neterra Ltd.Neterra Ltd.BGneterra.net08/05/2026
455840 66.132.128.0/17COGECO-PEER1Aptum TechnologiesCAhostpapa.com30/04/2026
390600DCH162.216.148.0/22GOOGLEGoogle LLCUSgoogle.com30/04/2026
384790DCH199.21.148.0/22NETMINDERSNetminders Data SolutionCAnet-minders.com07/05/2026
297120DCH45.142.192.0/22Bunea TELECOM SRLBunea Telecom SRLRObunea.eu30/04/2026
296530DCH199.167.136.0/22NETMINDERSNetminders Data SolutionCAnet-minders.com07/05/2026
275370 91.231.89.0/24Bha Conseil Sarl FR 30/04/2026
236700DCH198.235.24.0/24EXECULINKExeculink Telecom IncCAexeculink.com30/04/2026
223290DCH194.180.48.0/22SPRINTLINKSprintUSstingers.io08/05/2026
217410 91.230.168.0/24Bha Conseil Sarl TR 30/04/2026
204440DCH185.16.36.0/22Meverywhere sp. z o.o.Meverywhere Sp. z o.o.PLskynode.pl30/04/2026
187850 45.205.1.0/24PEGTECHINCPEG TECH IncUSparsun.com30/04/2026
143700 69.5.160.0/19OMNISOmnis Network LLCUSomnis.com07/05/2026
143530CDN172.226.0.0/15Akamai International B.V.Akamai International B.V.NLakamai.com30/04/2026
140860DCH45.142.192.0/22Bunea TELECOM SRLBunea Telecom SRLRObunea.eu08/05/2026
133180DCH92.63.197.0/24OOO SibirInvestOOO SIBIRINVESTNLngs.ru30/04/2026
132720ISP106.225.192.0/18CHINANET Jiangx province IDC networkCHINANET Jiangx province IDC networkCNchinatelecom.com.cn30/04/2026
132220DCH195.178.110.0/23SPRINTLINKSprintUSstingers.io30/04/2026
111900 66.132.128.0/17COGECO-PEER1Aptum TechnologiesCAhostpapa.com08/05/2026
111650DCH65.49.1.0/24PDXHOSTING-01Portland Internet Hosting LLCUSpdxhosting.net30/04/2026
109160DCH64.62.156.0/24AXIA-CONNECT-USA CA 30/04/2026
95440DCH162.216.148.0/22GOOGLEGoogle LLCUSgoogle.com08/05/2026
93600DCH64.62.197.0/24HURRICANEHurricane Electric LLCUStennwireless.com30/04/2026
82730COM170.39.218.0/23Harmony Hosting SARLHarmony Hosting SarlFRharmony-hosting.com30/04/2026
81340---203.25.208.0/20Sichuan Chuanxn IDCSichuan Chuanxn IDCCNchinatelecom.com.cn07/05/2026
80130 104.250.192.0/21CLOUD-SOUTHCloud SouthUScloudsouth.com30/04/2026
80060DCH45.148.10.0/24Pptechnology LimitedPPTECHNOLOGY LIMITEDGBbunea.eu08/05/2026
78240 160.119.76.0/24HostUSHostUSHKhostus.com30/04/2026
74640DCH45.87.248.0/22LeaseWeb Netherlands B.V.LeaseWeb Netherlands B.V.NLprobity.ltd29/04/2026
69380 91.231.89.0/24Bha Conseil Sarl FR 08/05/2026
68100DCH185.242.226.0/24SpectraIP B.V.SpectraIP B.V.NLbreezle.net30/04/2026
65320DCH45.148.10.0/24Pptechnology LimitedPPTECHNOLOGY LIMITEDGBbunea.eu30/04/2026
58340DCH198.235.24.0/24EXECULINKExeculink Telecom IncCAexeculink.com08/05/2026
58270DCH192.42.116.0/22SURF B.V.Surfnet B.V.NLsurfnet.nl30/04/2026
56290 91.230.168.0/24Bha Conseil Sarl TR 08/05/2026
52320ISP110.240.0.0/12CHINA UNICOM China169 BackboneChina UnicomCNchinaunicom.com30/04/2026
51650DCH193.32.162.0/24Bunea TELECOM SRLBunea Telecom SRLRObunea.eu30/04/2026
51190DCH193.46.254.0/23Unmanaged LtdUnmanaged LtdGBbunea.eu30/04/2026
50520DCH50.6.0.0/16UNIFIEDLAYER-AS-1Unified LayerUSunifiedlayer.com07/05/2026
50220DCH176.126.84.0/23HOSTHATCHHostHatch LLCUShosthatch.com04/05/2026
50010DCH92.63.197.0/24OOO SibirInvestOOO SIBIRINVESTNLngs.ru08/05/2026
48590 88.210.60.0/22CityLanCom LTDCityLanCom LTDRUcitylan.ru30/04/2026
48550 5.187.35.0/24Television por Cable Santa Pola, S.L.Television Por Cable Santa Pola S.L.EStvcablesantapola.es30/04/2026
47650DCH31.14.32.0/24Unithost Internet B.V.Unithost Internet B.V.NLunithost.nl30/04/2026
46720 104.250.192.0/21CLOUD-SOUTHCloud SouthUScloudsouth.com07/05/2026
46360DCH185.220.101.0/24Cia Triad Security LLCASMKNLzwiebelfreunde.de29/04/2026
45840DCH78.128.112.0/244Media Ltd. AE 30/04/2026
45800 45.205.1.0/24PEGTECHINCPEG TECH IncUSparsun.com08/05/2026
45420DCH31.14.32.0/24Unithost Internet B.V.Unithost Internet B.V.NLunithost.nl08/05/2026

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
041930ISP91.150.64.0/18TELEKOM SRBIJA a.d.TELEKOM SRBIJA a.d.RStelekom.rs30/04/2026
041921ISP50.200.172.0/22COMCAST-7922Comcast Cable Communications LLCUScomcastbusiness.net30/04/2026
034449ISP93.86.0.0/15TELEKOM SRBIJA a.d.TELEKOM SRBIJA a.d.RStelekom.rs30/04/2026
034398ISP178.220.0.0/15TELEKOM SRBIJA a.d.TELEKOM SRBIJA a.d.RStelekom.rs30/04/2026
025162 216.113.56.0/23VIDEOTRONVideotron Telecom LteeCAvideotron.com30/04/2026
018117EDU69.74.136.0/21CABLE-NET-1CableVision Systems Corp.UScablevision.com30/04/2026
017138EDU141.39.0.0/16Verein zur Foerderung eines Deutschen ForschungsneVerein zur Foerderung eines Deutschen Forschungsnetzes e.V.DEfu-berlin.de30/04/2026
016657ISP206.41.88.0/21FIBRENOIRE-INTERNETFibrenoire Inc.CAfibrenoire.ca30/04/2026
016554ISP50.206.212.0/22COMCAST-7922Comcast Cable Communications LLCUScomcastbusiness.net30/04/2026
010647ISP91.150.64.0/18TELEKOM SRBIJA a.d.TELEKOM SRBIJA a.d.RStelekom.rs08/05/2026
010390ISP50.200.128.0/22COMCAST-7922Comcast Cable Communications LLCUScomcastbusiness.net08/05/2026
010385ISP50.200.172.0/22COMCAST-7922Comcast Cable Communications LLCUScomcastbusiness.net08/05/2026
09451 103.232.196.0/22Buroserv Australia Pty LtdBuroserv Australia Pty LtdAUtelemates.com.au30/04/2026
09449COM213.61.0.0/16COLT Technology Services Group LimitedColt Technology Services Group LimitedGBopen-sky.it30/04/2026
09021CDN2.16.192.0/20AKAMAI-ASAkamai Technologies Inc.USakamai.com27/04/2026
08665ISP178.254.148.0/23Drustvo za telekomunikacije Orion telekom doo BeogDrustvo za telekomunikacije Orion telekom doo Beograd-ZemunRSoriontelekom.rs30/04/2026
08618COM195.52.0.0/16ecotel communication agEcotel Communication AGDEwebhoster.ag30/04/2026
08616ISP185.190.152.0/22TELEKOM SRBIJA a.d.TELEKOM SRBIJA a.d.RStelekom.rs30/04/2026
08611 185.103.136.0/22Moja Supernova Doo Beograd RS 30/04/2026
08611ISP212.200.192.0/19TELEKOM SRBIJA a.d.TELEKOM SRBIJA a.d.RStelekom.rs30/04/2026
08606ISP178.183.192.0/19T-Mobile Polska S.A.T-Mobile Polska S.A.PLt-mobile.pl30/04/2026
08599EDU148.81.128.0/18Naukowa I Akademicka Siec Komputerowa Instytut BadNaukowa i Akademicka Siec Komputerowa Instytut BadawczyPLnask.pl30/04/2026
08583COM195.185.0.0/16ecotel communication agEcotel Communication AGDEwebhoster.ag30/04/2026
08583ISP178.254.169.0/24Drustvo za telekomunikacije Orion telekom doo BeogDrustvo za telekomunikacije Orion telekom doo Beograd-ZemunRSoriontelekom.rs30/04/2026
08579ISP188.255.180.0/22Drustvo za telekomunikacije Orion telekom doo BeogDrustvo za telekomunikacije Orion telekom doo Beograd-ZemunRSoriontelekom.rs30/04/2026
08575ISP109.72.48.0/22Moja Supernova Doo BeogradMoja Supernova Doo BeogradRSmojasupernova.rs30/04/2026
08504ISP217.12.80.0/21Amaliy Aloqalar Biznesi Ltd.Amaliy Aloqalar Biznesi Ltd.UZbcc.com.uz30/04/2026
08428ISP212.200.128.0/18TELEKOM SRBIJA a.d.TELEKOM SRBIJA a.d.RStelekom.rs30/04/2026
08401---195.55.168.0/22Telefonica De EspanaTelefonica de EspanaEStelefonica.com30/04/2026
08390EDU149.205.0.0/16Verein zur Foerderung eines Deutschen ForschungsneVerein zur Foerderung eines Deutschen Forschungsnetzes e.V.DEfu-berlin.de30/04/2026
08383ISP80.32.0.0/13Telefonica De EspanaTelefonica de EspanaEStelefonica.com30/04/2026
08379DCH195.70.64.0/19Daisy Communications LtdDaisy Communications LtdGBdaisygroup.com30/04/2026
08362DCH109.168.0.0/17Irideos S.p.A.Irideos S.p.A.ITirideos.it30/04/2026
08356ISP95.140.112.0/21Drustvo za telekomunikacije Orion telekom doo BeogDrustvo za telekomunikacije Orion telekom doo Beograd-ZemunRSoriontelekom.rs30/04/2026
08356ISP213.30.192.0/181&1 Versatel Deutschland GmbH1&1 Versatel Deutschland GmbHDEversatel.de30/04/2026
08341ISP78.10.0.0/15Netia SANetia SAPLnetia.pl30/04/2026
08307DCH207.114.248.0/21LVLT-3549Level 3 Parent LLCUScenturylink.com30/04/2026
08165DCH85.115.0.0/19TelemaxX Telekommunikation GmbHTelemaxX Telekommunikation GmbHDEstadtwerke-buehl.de30/04/2026
07515DCH195.139.0.0/16Globalconnect AsGlobalConnect ASNOglobalconnect.no30/04/2026
06288 216.113.56.0/23VIDEOTRONVideotron Telecom LteeCAvideotron.com08/05/2026
06269 23.15.176.0/22Akamai International B.V.Akamai International B.V.NLakamai.com27/04/2026
06162COM212.172.0.0/16ecotel communication agEcotel Communication AGDEwebhoster.ag30/04/2026
05718DCH89.202.0.0/17Telecitygroup International LimitedTeleCityGroup International LimitedGBhostingpalvelu.fi30/04/2026
04515 23.41.178.0/23Akamai International B.V.Akamai International B.V.NLakamai.com27/04/2026
04514 104.97.12.0/22Akamai International B.V.Akamai International B.V.NLakamai.com27/04/2026
04512CDN2.23.80.0/21Akamai International B.V.Akamai International B.V.NLakamai.com27/04/2026
04512CDN2.20.69.0/24Akamai International B.V.Akamai International B.V.NLakamai.com27/04/2026
04512EDU69.74.136.0/21CABLE-NET-1CableVision Systems Corp.UScablevision.com08/05/2026
04511 23.53.40.0/22Akamai International B.V.Akamai International B.V.NLakamai.com27/04/2026
04478 92.123.76.0/23Akamai International B.V.Akamai International B.V.NLakamai.com27/04/2026

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
37399257SES66.249.64.0/19GOOGLEGoogle LLCUSgoogle.com30/04/2026
20876787DCH20.192.0.0/10MICROSOFT-CORP-MSN-AS-BLOCKMICROSOFT-CORP-MSN-AS-BLOCKUSmicrosoft.com30/04/2026
17666612DCH13.64.0.0/11MICROSOFT-CORP-MSN-AS-BLOCKMICROSOFT-CORP-MSN-AS-BLOCKUSmicrosoft.com30/04/2026
17132948DCH52.160.0.0/11MICROSOFT-CORP-MSN-AS-BLOCKMICROSOFT-CORP-MSN-AS-BLOCKUSmicrosoft.com30/04/2026
12682699SES66.249.64.0/19GOOGLEGoogle LLCUSgoogle.com08/05/2026
8833774DCH3.16.0.0/13AMAZON-02Amazon.com Inc.USamazon.com30/04/2026
7664086CDN84.53.175.0/24Akamai International B.V.Akamai International B.V.NLakamai.com27/04/2026
728991DCH85.208.96.0/23SEMrush CY LTDSemrush Cy LtdCYsemrush.com30/04/2026
697738DCH20.0.0.0/11MICROSOFT-CORP-MSN-AS-BLOCKMICROSOFT-CORP-MSN-AS-BLOCKUSmicrosoft.com08/05/2026
6911218ISP74.248.0.0/15MICROSOFT-CORP-MSN-AS-BLOCKMICROSOFT-CORP-MSN-AS-BLOCKUSmicrosoft.com30/04/2026
662866DCH43.128.0.0/14Tencent Building, Kejizhongyi AvenueTencent Building Kejizhongyi AvenueCNtencent.com30/04/2026
573603ISP82.0.0.0/11Virgin Media LimitedVirgin Media LimitedGBvirginmedia.com30/04/2026
5132817ISP172.56.0.0/14T-MOBILE-AS21928T-Mobile USA Inc.USt-mobile.com30/04/2026
489916ISP73.0.0.0/9COMCAST-7922Comcast Cable Communications LLCUScomcastbusiness.net30/04/2026
466500DCH170.106.0.0/16Tencent Building, Kejizhongyi AvenueTencent Building Kejizhongyi AvenueCNtencent.com30/04/2026
455662DCH3.208.0.0/12AMAZON-AESAmazon.com Inc.USamazon.com30/04/2026
428730DCH44.224.0.0/11AMAZON-02Amazon.com Inc.USamazon.com30/04/2026
425566ISP73.192.0.0/10COMCAST-7922Comcast Cable Communications LLCUScomcastbusiness.net30/04/2026
404627DCH13.64.0.0/11MICROSOFT-CORP-MSN-AS-BLOCKMICROSOFT-CORP-MSN-AS-BLOCKUSmicrosoft.com08/05/2026
359843DCH52.160.0.0/11MICROSOFT-CORP-MSN-AS-BLOCKMICROSOFT-CORP-MSN-AS-BLOCKUSmicrosoft.com08/05/2026
354388ISP68.32.0.0/11COMCAST-7922Comcast Cable Communications LLCUScomcastbusiness.net30/04/2026
352547DCH20.192.0.0/10MICROSOFT-CORP-MSN-AS-BLOCKMICROSOFT-CORP-MSN-AS-BLOCKUSmicrosoft.com08/05/2026
3412591ISP14.160.0.0/11VNPT CorpVNPT CorpVNvnpt.com.vn30/04/2026
3002099ISP113.160.0.0/11VNPT CorpVNPT CorpVNvnpt.com.vn30/04/2026
2961162DCH138.201.0.0/16Hetzner Online GmbHHetzner Online GmbHDEhetzner.de30/04/2026
253258ISP81.96.0.0/12Virgin Media LimitedVirgin Media LimitedGBvirginmedia.com30/04/2026
251367DCH54.236.0.0/15AMAZON-AESAmazon.com Inc.USamazon.com30/04/2026
239309DCH85.208.96.0/23SEMrush CY LTDSemrush Cy LtdCYsemrush.com08/05/2026
2371034DCH91.90.128.0/20Check Point Software Technologies LTD IL 30/04/2026
2281426DCH162.240.0.0/16UNIFIEDLAYER-AS-1Unified LayerUSunifiedlayer.com30/04/2026
224297ISP99.224.0.0/11ROGERS-COMMUNICATIONSRogers Communications Canada Inc.CArogerstelecom.net30/04/2026
220677SES207.46.0.0/19MICROSOFT-CORP-MSN-AS-BLOCKMICROSOFT-CORP-MSN-AS-BLOCKUSmicrosoft.com30/04/2026
220257ISP95.224.0.0/11Telecom ItaliaTelecom Italia S.p.A.ITtelecomitalia.it29/04/2026
217336ISP136.32.0.0/11GOOGLE-FIBERGoogle Fiber Inc.USgooglefiber.net30/04/2026
214632ISP125.224.0.0/13Data Communication Business GroupAsia Pacific Network Information CentreTWcht.com.tw30/04/2026
207875DCH162.120.0.0/16SUPERVALU US 30/04/2026
204228ISP107.192.0.0/11ATT-INTERNET4AT&T Services Inc.USatt.net30/04/2026
196516ISP88.160.0.0/11Free SASFree SASFRfree.fr30/04/2026
192201DCH5.255.96.0/19The Infrastructure Group B.V.The Infrastructure Group B.V.NLtheinfrastructure.group29/04/2026
190386 153.66.0.0/15NCR-252NCR CorporationUSncr.com30/04/2026
186249DCH45.79.0.0/18Linode, LLCLinode LLCUSlinode.com30/04/2026
181309DCH20.40.0.0/14MICROSOFT-CORP-MSN-AS-BLOCKMICROSOFT-CORP-MSN-AS-BLOCKUSmicrosoft.com08/05/2026
18041766ISP50.200.128.0/22COMCAST-7922Comcast Cable Communications LLCUScomcastbusiness.net30/04/2026
179269 135.119.0.0/16LUCENT-CIOAlcatel-LucentUSalcatel-lucent.com08/05/2026
178411DCH95.216.0.0/15Hetzner Online GmbHHetzner Online GmbHDEhetzner.de30/04/2026
175330DCH82.165.0.0/161&1 Ionos Se1&1 IONOS SEDEionos.com08/05/2026
166178ISP174.160.0.0/11COMCAST-7922Comcast Cable Communications LLCUScomcastbusiness.net30/04/2026
161325ISP38.48.0.0/12COGENT-174Cogent CommunicationsUSfdcservers.net30/04/2026
160228DCH162.120.0.0/16SUPERVALU US 08/05/2026
159521DCH136.112.0.0/12GOOGLEGoogle LLCUSgoogle.com30/04/2026
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