Reputation · trust score
A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.
- Baseline (neutral) 65
- Not on any threat blocklist +5
- Has a reverse-DNS (PTR) record +5
- Established allocation (11y) +3
- Trust score 78 / 100
Experimental · trust-vectors model v1.2.1 — a transparent heuristic, not a definitive verdict. How it works →
DNS records
- Reverse DNS (PTR)
- bu.edu
- Forward-confirmed (FCrDNS)
- ✗ Mismatch
- PTR TTL
- 7200 s
- Reverse DNS last checked
- 2026-10-07 15:23 UTC
- Forward DNS last checked
- 2026-10-07 15:23 UTC
Forward DNS records for bu.edu
| Type | Value | Priority | TTL |
|---|---|---|---|
| A | 128.197.236.4 | — | 3600s |
| MX | mx1.hc2706-39.iphmx.com | 5 | — |
| MX | mx2.hc2706-39.iphmx.com | 5 | — |
| NS | edns01.bu.edu | — | — |
| NS | edns02.bu.edu | — | — |
| NS | edns03.bu.edu | — | — |
| TXT | amazonses:Lvbg/4wEfqYPAg39Surgr1mR4yRKoLyNZqgEObXYgeU= | — | — |
| TXT | 406A508926329EEE1AE912BC06B33181 | — | — |
| TXT | 508486115411084033893E6796CD5A9B | — | — |
| TXT | BD0EC30CCCA95BA6791765DFAF3EB0E4 | — | — |
| TXT | BGELPNBsDxzCVsd892zu7uzc6/RS4XTHMBwfAzUDOuTGxWQ1ggk8vjNNHdbJuKLAUnYjS2GGqYKKvJCWrhWi5Q== | — | — |
| TXT | C164A899D8D6114A08B1E87BAE9AD036 | — | — |
| TXT | KP949W92GKNQ0PZ0N88XHLBEWBWBY5ME4Y9319Q9J | — | — |
| TXT | MS=ms14560947 | — | — |
| TXT | TAILSCALE-xoPhMaCbCi2oAgNoR6vU | — | — |
| TXT | ZOOM_verify_nqTarCG_Sfec5hmDYIey9w | — | — |
| TXT | ZOOM_verify_yhxVUDjfdOc4LiPKGmrwOZ | — | — |
| TXT | a4V5CxeWPi3/r5nrG/fp2mf8bI70nxWPpUhOCtaSvzU= | — | — |
| TXT | adobe-idp-site-verification=a71f2fe0-25c1-46cd-9d0f-c83d769cc464 | — | — |
| TXT | amazonses:2YQZEyFhbb+XTfTQXV7NoBA07XHUUExz73D1KJlPap8= | — | — |
| TXT | amazonses:6PZDYpsrO7QArYfeoqWB73qyPXS+YY6o4boqlo2Da3U= | — | — |
| TXT | amazonses:AwSvDmWwTx8okcatFIEnWSnq20Z9LPfd6DRCIh1vFJs= | — | — |
| TXT | amazonses:P9MFqEievVVPAd1/PX0PcTCBEOzYqYp/ix1L9lxbN40= | — | — |
| TXT | amazonses:dSjTJ5EAmNt4HCeFh5d73yXHdRAWl0hJ/4pTL7NmUD8= | — | — |
| TXT | anthropic-domain-verification-naf36v=CEFZVHy1jQpWLrBBoNOxVc9F5 | — | — |
| TXT | apple-domain-verification=xbZoF0D4CQePMvfj | — | — |
| TXT | asv=a2db9061fe2c0d8996ebab42acf37c2b | — | — |
| TXT | atlassian-domain-verification=aUzHV7Znf5W7zM9iKWIuXmQL2n3xyjLnhzctpiQ1dRDMXAAdF9wAGfQduOBpU2Jl | — | — |
| TXT | brevo-code:956c0e08c148a9770622045342757477 | — | — |
| TXT | cisco-ci-domain-verification=76b5749d7018bb6b7c5b4ff2294f07d53a130fe45d2f7883653965a062644bf7 | — | — |
| TXT | d365mktkey=7qsGu1xt2piBD6R1Tywzn8SVLsatn3NuB9MR5WReZ0ox | — | — |
| TXT | d365mktkey=M0OxizdtVNcUWXZe3yNtSjfsCAM2ye8yfml9rfIR8vYx | — | — |
| TXT | dropbox-domain-verification=z6zza3wyksbx | — | — |
| TXT | e2ma-verification=0wegb | — | — |
| TXT | google-site-verification=67INNBNCAQXRtks4u0Zt20tpzmBzJwHMN_CxcX5xz6A | — | — |
| TXT | google-site-verification=7DoOKBD8dD53G3N4o-I5jUbG_qjDxTSuZExk4p1qlY0 | — | — |
| TXT | google-site-verification=ZXAn1MfviwxydrktJiphtqacGQ6i3BJMiWaOYhE0aW4 | — | — |
| TXT | google-site-verification=qM8eaHJfQH86-_P7YBYXq_yUIgourW2SlrR_KJr8dVY | — | — |
| TXT | google-site-verification=uUBIo7rGZKIUNOEJ7yOahQe-AYkW4AwJPJrSsgQaQPE | — | — |
| TXT | google-site-verification=xmeyfQgB5dDMamBVUQr_BuUpNpqimItoXEKJ7aikqWI | — | — |
| TXT | identrust_validation=XctZJLt6/1cdhi2FoKvCewO+jAkBlZMtSzOmZ3yM5aMZ | — | — |
| TXT | identrust_validation=izRYplfXjj09O/sui/WvwGSZTi4MCrQ93v8yc3gyqrYl | — | — |
| TXT | miro-verification=377cc6659a02c6725b563adc7e39e17eaee09eb3 | — | — |
| TXT | ms-domain-verification=ba683a5e-ca58-4005-82c5-bae45c91fbbb | — | — |
| TXT | openai-domain-verification=dv-jqEdCiOFLvqVPwoC3PcpCjU3 | — | — |
| TXT | pardot192822=9820d4cb1fb8aee684785fb4ef3504834e89c2a9dc72ae85619eb2d5afe36f76 | — | — |
| TXT | pardot192822=e95b76f60f1f2dd27c11ef306f99d5472c871da9d221b2a08db5fecb618af01a | — | — |
| TXT | pardot192822=fb9c4b0ba22a7462686372773f2e521d53de40b1db0bbfed977bcf46a4ff6907 | — | — |
| TXT | pardot_192822_*=2319b3b7ba3b841329ffb670d26bccab3ddb9cf8cd0a67cdb28cbd760bb98a08 | — | — |
| TXT | v=spf1 include:%{l}.%{o}.spf.bu.edu include:_u.ondmarc.bu.edu._spf.smart.ondmarc.com ~all | — | — |
| TXT | v=verifydomain MS=ms17551242 | — | — |
| TXT | v=verifydomain MS=ms74687773 | — | — |
| TXT | yahoo-verification-key=A3O9VJ94l+a2frns/isnh9MBwLfPwVeMBgdvOb2l978= | — | — |
| CAA | issue amazon.com | 0 | — |
| CAA | issue digicert.com | 0 | — |
| CAA | issue emsign.com | 0 | — |
| CAA | issue identrust.com | 0 | — |
| CAA | issue letsencrypt.org | 0 | — |
| CAA | issue sectigo.com | 0 | — |
| CAA | issuewild amazon.com | 0 | — |
| CAA | issuewild digicert.com | 0 | — |
| CAA | issuewild emsign.com | 0 | — |
| CAA | issuewild sectigo.com | 0 | — |
Reverse & forward DNS collected by the WorldIP scanner fleet — FCrDNS confirms the PTR hostname resolves back to this IP.
Domains hosted
as of 2026-10-04 UTC0
issued.live saw no domain resolving to this IP in its latest weekly snapshot.
Domain data provided by issued.live — for full details visit https://issued.live/pricing
Reverse DNS history
How this IP's reverse DNS (PTR) has changed over time, from our scans.
Network Allocation for 185.103.164.139
- CIDR range
- 185.103.164.0/24
- IP range (int)
- 3,110,577,152 — 3,110,577,407
- Prefix length
- /24
- Organization
- Alexhost Srl
- ASN
- AS200019
- ASN name
- Alexhost Srl
- Location
- Switzerland
- Coordinates
- 47.144900, 8.155100
- Accuracy radius
- 100 km
- Regional Internet Registry
- RIPE
- Allocated
- 2015-06-09
- Data source(s)
- maxmind_city, maxmind_country, maxmind_asn, ipinfo_lite
- Last updated
- 2026-10-05 08:40:26
BGP Routing
Live BGP anomalies →Origin AS announcing the most-specific prefix that covers this IP, observed across our RIPE RIS collectors.
Frequently Asked Questions
Who owns 185.103.164.139?
185.103.164.139 is allocated to Alexhost Srl (AS200019), registered in Switzerland.
Where is 185.103.164.139 located?
The geolocation for 185.103.164.139 maps to Switzerland based on MaxMind GeoLite2 data. Accuracy depends on the provider and may represent the ISP's regional hub rather than the exact endpoint.
What network is 185.103.164.139 on?
185.103.164.139 belongs to the 185.103.164.0/24 network block announced by AS200019. This range contains 256 addresses.
Does 185.103.164.139 have a reverse DNS record?
Reverse DNS (PTR) records are resolved live when you visit this page. If a PTR record exists, it appears in the Reverse DNS field above. PTR records map IP addresses back to hostnames and are commonly used for email authentication and network diagnostics.
Neighbors
Other addresses in the same /24.
