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
1113750 85.217.140.0/24Neterra Ltd.Neterra Ltd.BGneterra.net19/04/2026
583270DCH78.128.114.0/24Tamatiya EOODTamatiya EOODBGlir.bg30/03/2026
413580 216.180.240.0/21NTHLNetwork Transit Holdings LLCUSnetworktransit.net25/03/2026
385450DCH162.216.148.0/22GOOGLEGoogle LLCUSgoogle.com31/03/2026
294200 66.132.128.0/17COGECO-PEER1Aptum TechnologiesCAhostpapa.com20/04/2026
275490 91.231.89.0/24Bha Conseil Sarl FR 31/03/2026
261990DCH162.216.148.0/22GOOGLEGoogle LLCUSgoogle.com20/04/2026
242190DCH45.87.248.0/22LeaseWeb Netherlands B.V.LeaseWeb Netherlands B.V.NLprobity.ltd31/03/2026
221440 91.230.168.0/24Bha Conseil Sarl TR 31/03/2026
209790CDN172.226.0.0/15Akamai International B.V.Akamai International B.V.NLakamai.com31/03/2026
185230DCH185.16.36.0/22Meverywhere sp. z o.o.Meverywhere Sp. z o.o.PLskynode.pl20/04/2026
172280 91.231.89.0/24Bha Conseil Sarl FR 20/04/2026
168250DCH185.215.167.0/24Clouvider LimitedClouvider LimitedGBmastercommunications.ru24/03/2026
165500ISP106.225.192.0/18CHINANET Jiangx province IDC networkCHINANET Jiangx province IDC networkCNchinatelecom.com.cn31/03/2026
157510DCH198.235.24.0/24EXECULINKExeculink Telecom IncCAexeculink.com20/04/2026
139660 91.230.168.0/24Bha Conseil Sarl TR 20/04/2026
137260DCH92.63.197.0/24OOO SibirInvestOOO SIBIRINVESTNLngs.ru31/03/2026
136390DCH45.142.192.0/22Bunea TELECOM SRLBunea Telecom SRLRObunea.eu20/04/2026
122940ISP106.225.192.0/18CHINANET Jiangx province IDC networkCHINANET Jiangx province IDC networkCNchinatelecom.com.cn20/04/2026
118650 45.205.1.0/24PEGTECHINCPEG TECH IncUSparsun.com20/04/2026
114730DCH162.142.125.0/24CENSYS-ARIN-01 US 23/03/2026
114720DCH64.62.156.0/24AXIA-CONNECT-USA CA 31/03/2026
114290COM170.39.218.0/23Harmony Hosting SARLHarmony Hosting SarlFRharmony-hosting.com31/03/2026
99650DCH64.62.197.0/24HURRICANEHurricane Electric LLCUStennwireless.com31/03/2026
94590CDN172.226.0.0/15Akamai International B.V.Akamai International B.V.NLakamai.com20/04/2026
86270 88.210.60.0/22CityLanCom LTDCityLanCom LTDRUcitylan.ru31/03/2026
84180ISP82.147.84.0/22Siberian Telecommunications Ltd.Siberian Telecommunications Ltd.RUsibtel.ru31/03/2026
74590DCH45.87.248.0/22LeaseWeb Netherlands B.V.LeaseWeb Netherlands B.V.NLprobity.ltd07/04/2026
70930 89.42.231.0/24Compania De Informatica Aplicata SA RO 28/03/2026
70630DCH185.156.73.0/24OOO SibirInvestOOO SIBIRINVESTNLngs.ru31/03/2026
69950DCH65.49.1.0/24PDXHOSTING-01Portland Internet Hosting LLCUSpdxhosting.net20/04/2026
68320DCH64.62.156.0/24AXIA-CONNECT-USA CA 20/04/2026
64570DCH92.63.197.0/24OOO SibirInvestOOO SIBIRINVESTNLngs.ru20/04/2026
63630 104.250.192.0/21CLOUD-SOUTHCloud SouthUScloudsouth.com20/04/2026
62510DCH77.90.185.0/24Alexhost SrlAlexHost SRLMDo2dc.com31/03/2026
61890COM170.39.218.0/23Harmony Hosting SARLHarmony Hosting SarlFRharmony-hosting.com20/04/2026
58350DCH64.62.197.0/24HURRICANEHurricane Electric LLCUStennwireless.com20/04/2026
55880ISP87.121.84.0/22SKAT TV Ltd.Skat TV Ltd.BGtvskat.net31/03/2026
52440DCH93.123.109.0/24Sarnica-Net LTDSARNICA-NET LTDBGsarnica.net31/03/2026
51190DCH193.32.162.0/24Bunea TELECOM SRLBunea Telecom SRLRObunea.eu19/04/2026
50990DCH91.224.92.0/24Tele Asia LimitedTele Asia LimitedHKtele-asia.net31/03/2026
48940 154.83.192.0/18SPRINTLINKSprintUSstingers.io31/03/2026
48400CDN172.225.0.0/20Akamai International B.V.Akamai International B.V.NLakamai.com31/03/2026
47640DCH45.142.192.0/22Bunea TELECOM SRLBunea Telecom SRLRObunea.eu31/03/2026
45520DCH195.178.110.0/23SPRINTLINKSprintUSstingers.io20/04/2026
41620 216.73.192.0/19WINDSTREAMWindstream Communications LLCUSearthlink.net31/03/2026
40410 45.156.87.0/24SkyLink Data Center BVSkylink Data Center BVNLipv4superhub.com31/03/2026
37430DCH185.242.226.0/24SpectraIP B.V.SpectraIP B.V.NLbreezle.net20/04/2026
36430DCH80.66.66.0/23LLC Siberian Telecommunications CompanyLLC SIBERIAN TELECOMMUNICATIONS COMPANYRUserverlux.ru31/03/2026
36310DCH192.42.116.0/22SURF B.V.Surfnet B.V.NLsurfnet.nl19/04/2026

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
055549ISP91.150.64.0/18TELEKOM SRBIJA a.d.TELEKOM SRBIJA a.d.RStelekom.rs31/03/2026
041771ISP50.200.172.0/22COMCAST-7922Comcast Cable Communications LLCUScomcastbusiness.net31/03/2026
041770ISP50.200.128.0/22COMCAST-7922Comcast Cable Communications LLCUScomcastbusiness.net31/03/2026
034458ISP93.86.0.0/15TELEKOM SRBIJA a.d.TELEKOM SRBIJA a.d.RStelekom.rs31/03/2026
027029ISP91.150.64.0/18TELEKOM SRBIJA a.d.TELEKOM SRBIJA a.d.RStelekom.rs20/04/2026
027015ISP50.200.172.0/22COMCAST-7922Comcast Cable Communications LLCUScomcastbusiness.net20/04/2026
026951ISP50.200.128.0/22COMCAST-7922Comcast Cable Communications LLCUScomcastbusiness.net20/04/2026
026578ISP186.233.228.0/22Solucao Network Provedor LtdaSolucao Network Provedor LtdaBRsolucaonetwork.com04/04/2026
025050 216.113.56.0/23VIDEOTRONVideotron Telecom LteeCAvideotron.com31/03/2026
022284ISP93.86.0.0/15TELEKOM SRBIJA a.d.TELEKOM SRBIJA a.d.RStelekom.rs20/04/2026
022283ISP178.220.0.0/15TELEKOM SRBIJA a.d.TELEKOM SRBIJA a.d.RStelekom.rs20/04/2026
018138EDU69.74.136.0/21CABLE-NET-1CableVision Systems Corp.UScablevision.com31/03/2026
017221ISP109.198.0.0/19Moja Supernova Doo BeogradMoja Supernova Doo BeogradRSmojasupernova.rs31/03/2026
017140EDU141.39.0.0/16Verein zur Foerderung eines Deutschen ForschungsneVerein zur Foerderung eines Deutschen Forschungsnetzes e.V.DEfu-berlin.de31/03/2026
016745ISP206.41.88.0/21FIBRENOIRE-INTERNETFibrenoire Inc.CAfibrenoire.ca31/03/2026
016735ISP50.206.212.0/22COMCAST-7922Comcast Cable Communications LLCUScomcastbusiness.net31/03/2026
016257 216.113.56.0/23VIDEOTRONVideotron Telecom LteeCAvideotron.com20/04/2026
014997ISP179.49.184.0/22Vianet Telecomunicacoes Ltda BR 04/04/2026
011710EDU69.74.136.0/21CABLE-NET-1CableVision Systems Corp.UScablevision.com20/04/2026
011083EDU141.39.0.0/16Verein zur Foerderung eines Deutschen ForschungsneVerein zur Foerderung eines Deutschen Forschungsnetzes e.V.DEfu-berlin.de20/04/2026
010823ISP50.206.212.0/22COMCAST-7922Comcast Cable Communications LLCUScomcastbusiness.net20/04/2026
010743ISP206.41.88.0/21FIBRENOIRE-INTERNETFibrenoire Inc.CAfibrenoire.ca20/04/2026
09902ISP176.248.0.0/13Sky UK LimitedSKY UK LimitedGBsky.com26/03/2026
08641COM213.61.0.0/16COLT Technology Services Group LimitedColt Technology Services Group LimitedGBopen-sky.it31/03/2026
08631COM195.52.0.0/16ecotel communication agEcotel Communication AGDEwebhoster.ag31/03/2026
08623ISP178.183.192.0/19T-Mobile Polska S.A.T-Mobile Polska S.A.PLt-mobile.pl31/03/2026
08616ISP178.254.148.0/23Drustvo za telekomunikacije Orion telekom doo BeogDrustvo za telekomunikacije Orion telekom doo Beograd-ZemunRSoriontelekom.rs31/03/2026
08612ISP212.200.192.0/19TELEKOM SRBIJA a.d.TELEKOM SRBIJA a.d.RStelekom.rs31/03/2026
08604ISP92.42.248.0/21Drustvo za telekomunikacije Orion telekom doo BeogDrustvo za telekomunikacije Orion telekom doo Beograd-ZemunRSoriontelekom.rs31/03/2026
08602ISP188.255.180.0/22Drustvo za telekomunikacije Orion telekom doo BeogDrustvo za telekomunikacije Orion telekom doo Beograd-ZemunRSoriontelekom.rs31/03/2026
08587ISP178.254.169.0/24Drustvo za telekomunikacije Orion telekom doo BeogDrustvo za telekomunikacije Orion telekom doo Beograd-ZemunRSoriontelekom.rs31/03/2026
08578ISP185.190.152.0/22TELEKOM SRBIJA a.d.TELEKOM SRBIJA a.d.RStelekom.rs31/03/2026
08572COM195.185.0.0/16ecotel communication agEcotel Communication AGDEwebhoster.ag31/03/2026
08478ISP109.72.48.0/22Moja Supernova Doo BeogradMoja Supernova Doo BeogradRSmojasupernova.rs31/03/2026
08462EDU149.205.0.0/16Verein zur Foerderung eines Deutschen ForschungsneVerein zur Foerderung eines Deutschen Forschungsnetzes e.V.DEfu-berlin.de31/03/2026
08418---195.55.168.0/22Telefonica De EspanaTelefonica de EspanaEStelefonica.com31/03/2026
08399ISP80.32.0.0/13Telefonica De EspanaTelefonica de EspanaEStelefonica.com31/03/2026
08385ISP212.200.128.0/18TELEKOM SRBIJA a.d.TELEKOM SRBIJA a.d.RStelekom.rs31/03/2026
08384 103.232.196.0/22Buroserv Australia Pty LtdBuroserv Australia Pty LtdAUtelemates.com.au31/03/2026
08372DCH109.168.0.0/17Irideos S.p.A.Irideos S.p.A.ITirideos.it31/03/2026
08369ISP213.30.192.0/181&1 Versatel Deutschland GmbH1&1 Versatel Deutschland GmbHDEversatel.de31/03/2026
08360DCH195.70.64.0/19Daisy Communications LtdDaisy Communications LtdGBdaisygroup.com31/03/2026
08338EDU148.81.128.0/18Naukowa I Akademicka Siec Komputerowa Instytut BadNaukowa i Akademicka Siec Komputerowa Instytut BadawczyPLnask.pl31/03/2026
07687DCH195.139.0.0/16Globalconnect AsGlobalConnect ASNOglobalconnect.no31/03/2026
07538DCH207.114.248.0/21LVLT-3549Level 3 Parent LLCUScenturylink.com31/03/2026
06814ISP217.12.80.0/21Amaliy Aloqalar Biznesi Ltd.Amaliy Aloqalar Biznesi Ltd.UZbcc.com.uz31/03/2026
06461ISP109.121.32.0/19Drustvo za telekomunikacije Orion telekom doo BeogDrustvo za telekomunikacije Orion telekom doo Beograd-ZemunRSoriontelekom.rs24/03/2026
06442ISP188.255.232.0/22Drustvo za telekomunikacije Orion telekom doo BeogDrustvo za telekomunikacije Orion telekom doo Beograd-ZemunRSoriontelekom.rs24/03/2026
05910ISP83.236.0.0/16Plusnet GmbHPlusnet GmbHDEeifel-net.net20/04/2026
05722DCH89.202.0.0/17Telecitygroup International LimitedTeleCityGroup International LimitedGBhostingpalvelu.fi31/03/2026

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
28655712SES66.249.64.0/19GOOGLEGoogle LLCUSgoogle.com20/04/2026
16606270DCH13.64.0.0/11MICROSOFT-CORP-MSN-AS-BLOCKMICROSOFT-CORP-MSN-AS-BLOCKUSmicrosoft.com31/03/2026
16294403DCH20.192.0.0/10MICROSOFT-CORP-MSN-AS-BLOCKMICROSOFT-CORP-MSN-AS-BLOCKUSmicrosoft.com20/04/2026
15354531DCH20.192.0.0/10MICROSOFT-CORP-MSN-AS-BLOCKMICROSOFT-CORP-MSN-AS-BLOCKUSmicrosoft.com31/03/2026
15003145DCH52.160.0.0/11MICROSOFT-CORP-MSN-AS-BLOCKMICROSOFT-CORP-MSN-AS-BLOCKUSmicrosoft.com31/03/2026
11554538DCH13.64.0.0/11MICROSOFT-CORP-MSN-AS-BLOCKMICROSOFT-CORP-MSN-AS-BLOCKUSmicrosoft.com20/04/2026
11212012DCH52.160.0.0/11MICROSOFT-CORP-MSN-AS-BLOCKMICROSOFT-CORP-MSN-AS-BLOCKUSmicrosoft.com20/04/2026
8822429DCH3.16.0.0/13AMAZON-02Amazon.com Inc.USamazon.com20/04/2026
81019260SES66.249.64.0/19GOOGLEGoogle LLCUSgoogle.com31/03/2026
7661761CDN84.53.175.0/24Akamai International B.V.Akamai International B.V.NLakamai.com14/04/2026
658851DCH43.128.0.0/14Tencent Building, Kejizhongyi AvenueTencent Building Kejizhongyi AvenueCNtencent.com31/03/2026
5847110DCH74.125.0.0/16GOOGLEGoogle LLCUSgoogle.com20/04/2026
560670DCH3.208.0.0/12AMAZON-AESAmazon.com Inc.USamazon.com31/03/2026
549688DCH85.208.96.0/23SEMrush CY LTDSemrush Cy LtdCYsemrush.com20/04/2026
5032099ISP74.7.0.0/16ATL-CBEYONDCbeyond Communications LLCUScbeyond.net31/03/2026
479804DCH44.224.0.0/11AMAZON-02Amazon.com Inc.USamazon.com31/03/2026
474759ISP74.248.0.0/15MICROSOFT-CORP-MSN-AS-BLOCKMICROSOFT-CORP-MSN-AS-BLOCKUSmicrosoft.com20/04/2026
4682695ISP172.56.0.0/14T-MOBILE-AS21928T-Mobile USA Inc.USt-mobile.com31/03/2026
4031040ISP47.192.0.0/12FRONTIER-FRTRFrontier Communications of America Inc.USfrontier.com31/03/2026
400894SES185.191.171.0/24SEMrush CY LTDSemrush Cy LtdCYsemrush.com31/03/2026
3941867ISP172.56.0.0/14T-MOBILE-AS21928T-Mobile USA Inc.USt-mobile.com20/04/2026
3663828ISP14.160.0.0/11VNPT CorpVNPT CorpVNvnpt.com.vn31/03/2026
359426DCH52.200.0.0/13AMAZON-AESAmazon.com Inc.USamazon.com31/03/2026
3502998ISP113.160.0.0/11VNPT CorpVNPT CorpVNvnpt.com.vn31/03/2026
338663ISP73.0.0.0/9COMCAST-7922Comcast Cable Communications LLCUScomcastbusiness.net20/04/2026
331607DCH43.128.0.0/14Tencent Building, Kejizhongyi AvenueTencent Building Kejizhongyi AvenueCNtencent.com20/04/2026
327681ISP90.240.0.0/12Vodafone LimitedVodafone LimitedGBvodafone.co.uk30/03/2026
302348DCH35.80.0.0/12AMAZON-02Amazon.com Inc.USamazon.com31/03/2026
280400DCH54.172.0.0/14AMAZON-AESAmazon.com Inc.USamazon.com31/03/2026
279375DCH116.202.0.0/15Hetzner Online GmbHHetzner Online GmbHDEhetzner.de31/03/2026
277406ISP73.192.0.0/10COMCAST-7922Comcast Cable Communications LLCUScomcastbusiness.net20/04/2026
2674455ISP151.224.0.0/13Sky UK LimitedSKY UK LimitedGBsky.com29/03/2026
2611524ISP14.160.0.0/11VNPT CorpVNPT CorpVNvnpt.com.vn20/04/2026
260400DCH3.208.0.0/12AMAZON-AESAmazon.com Inc.USamazon.com20/04/2026
238272DCH66.228.32.0/19Linode, LLCLinode LLCUSlinode.com30/03/2026
2291238ISP113.160.0.0/11VNPT CorpVNPT CorpVNvnpt.com.vn20/04/2026
229779ISP82.0.0.0/11Virgin Media LimitedVirgin Media LimitedGBvirginmedia.com31/03/2026
224257DCH35.224.0.0/12GOOGLEGoogle LLCUSgoogle.com20/04/2026
221395DCH54.236.0.0/15AMAZON-AESAmazon.com Inc.USamazon.com31/03/2026
206833DCH217.113.192.0/20L'ile aux surfers s.a.r.l.L'ile aux surfers s.a.r.l.FRcineteck-fr.com28/03/2026
204701DCH138.201.0.0/16Hetzner Online GmbHHetzner Online GmbHDEhetzner.de31/03/2026
200234ISP136.32.0.0/11GOOGLE-FIBERGoogle Fiber Inc.USgooglefiber.net19/04/2026
198221ISP99.224.0.0/11ROGERS-COMMUNICATIONSRogers Communications Canada Inc.CArogerstelecom.net19/04/2026
191207DCH34.80.0.0/12GOOGLEGoogle LLCUSgoogle.com20/04/2026
177450SES207.46.0.0/19MICROSOFT-CORP-MSN-AS-BLOCKMICROSOFT-CORP-MSN-AS-BLOCKUSmicrosoft.com20/04/2026
169443ISP88.160.0.0/11Free SASFree SASFRfree.fr31/03/2026
167286 153.66.0.0/15NCR-252NCR CorporationUSncr.com20/04/2026
164205---43.157.0.0/18TENCENT-NET-AP-CN Tencent Building, Kejizhongyi AvTencent Building Kejizhongyi AvenueCNtencent.com31/03/2026
150224DCH54.236.0.0/15AMAZON-AESAmazon.com Inc.USamazon.com20/04/2026
149412DCH136.112.0.0/12GOOGLEGoogle LLCUSgoogle.com20/04/2026
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