IP Prefix
IPv4
104.16.0.0/20
Aggregated from public BGP, CT logs, our scan layer, honeypots and global probes.
Origin AS
AS13335
RPKI
1 ROAs
Open IPs
3,621
last 90 d
Network
Anycast
Cloudflare
Routing
Origin AS
Holder
Cloudflare
Prefix Length
/20
Multi-Origin
No
Last refresh
2026-07-21 19:59:50
RPKI Validity
max-len 20
valid
arin
RIR Allocation
Registry
ARIN
Country
Status
Allocated
Allocated
2014-03-28
Delegated block
104.16.0.0 + 1,048,576 addrs
Geographic Announcement
Anycast — Cloudflare.
This prefix is announced from many PoPs worldwide simultaneously. The MaxMind "ZZ" code below reflects "no single country" rather than "unknown" — the route taken depends on the BGP best-path of the querying ASN.
GeoIP attribution from MaxMind GeoLite2 (CC-BY-SA). The starting address of the prefix maps to:
| Country | Continent | Ranges |
|---|---|---|
| ZZ Anycast / no single country | 1 |
Sample IPs in this Prefix
| IP | Open ports | Last scan |
|---|---|---|
| 104.16.4.102 | 8 | 2026-07-18 22:46:36.000 |
| 104.16.6.223 | 7 | 2026-07-21 15:51:13.000 |
| 104.16.10.173 | 7 | 2026-07-20 12:43:53.000 |
| 104.16.7.12 | 6 | 2026-07-21 15:45:01.000 |
| 104.16.5.163 | 6 | 2026-07-21 14:26:02.000 |
| 104.16.11.239 | 6 | 2026-07-21 13:28:08.000 |
| 104.16.5.226 | 6 | 2026-07-20 19:52:39.000 |
| 104.16.6.165 | 6 | 2026-07-20 05:55:18.000 |
| 104.16.6.179 | 6 | 2026-07-20 03:06:30.000 |
| 104.16.7.217 | 6 | 2026-07-19 01:38:27.000 |
| 104.16.1.98 | 6 | 2026-07-18 17:39:32.000 |
| 104.16.11.7 | 6 | 2026-07-18 16:14:55.000 |
| 104.16.12.46 | 6 | 2026-07-17 19:40:11.000 |
| 104.16.13.97 | 6 | 2026-07-16 02:11:59.000 |
| 104.16.15.153 | 6 | 2026-07-16 02:00:13.000 |
| 104.16.11.112 | 6 | 2026-06-23 15:52:43.000 |
| 104.16.15.185 | 6 | 2026-06-23 12:42:34.000 |
| 104.16.1.56 | 6 | 2026-06-16 12:08:27.000 |
| 104.16.10.146 | 5 | 2026-07-21 23:32:00.000 |
| 104.16.4.56 | 5 | 2026-07-21 23:10:17.000 |
| 104.16.13.249 | 5 | 2026-07-21 22:30:48.000 |
| 104.16.7.184 | 5 | 2026-07-21 17:09:16.000 |
| 104.16.4.196 | 5 | 2026-07-21 14:52:50.000 |
| 104.16.0.216 | 5 | 2026-07-21 14:43:55.000 |
| 104.16.10.111 | 5 | 2026-07-21 14:41:58.000 |
Cert Subjects in this Prefix
| Subject | Hosts | Last seen |
|---|---|---|
| zoomconnector.com | 3 | 2026-07-21 14:30:17.850 |
| hsinbox.com | 2 | 2026-07-21 22:07:06.512 |
| hawaiimetalrecycling.com | 2 | 2026-07-21 03:02:11.826 |
| impactful.technology | 2 | 2026-07-21 01:36:09.329 |
| jeanpaulgaultier.com | 2 | 2026-07-19 11:58:09.141 |
| *.vivoglobal.com | 2 | 2026-07-17 11:57:05.882 |
| ssl820095.cloudflaressl.com | 1 | 2026-07-21 23:48:06.302 |
| xhamster.com | 1 | 2026-07-21 20:11:06.553 |
| advisor.ml.com | 1 | 2026-07-21 15:45:20.358 |
| m.medline.com | 1 | 2026-07-21 14:15:16.815 |
| ssl1076222.cloudflaressl.com | 1 | 2026-07-21 12:47:08.473 |
| devtombola.co.uk | 1 | 2026-07-21 10:57:11.152 |
| ssl872028.cloudflaressl.com | 1 | 2026-07-21 07:59:11.903 |
| ashleymadison.com | 1 | 2026-07-21 04:54:12.207 |
| ssl1069600.cloudflaressl.com | 1 | 2026-07-21 02:20:06.145 |
| *.chisoncloud.com | 1 | 2026-07-21 00:56:12.093 |
| ssl832048.cloudflaressl.com | 1 | 2026-07-20 22:00:11.231 |
| ssl1068398.cloudflaressl.com | 1 | 2026-07-20 20:17:09.188 |
| *.ppd.arcane.samsungspac.net | 1 | 2026-07-20 19:14:10.489 |
| ssl1062670.cloudflaressl.com | 1 | 2026-07-20 18:52:09.428 |
Hosted Domains
Domains that resolve to any address in this prefix — aggregated across the whole subnet. 31,086 distinct domains seen; top by span shown.
History
Prefix-event history pending
Origin AS changes, ROA add/drop events, multi-origin episodes and withdrawals require snapshot-diffing across BGP crawls. The data accumulates as the archive grows — full ReplacingMergeTree compaction makes point-in-time event extraction unavailable for now.