UDP traffic
Datagrams matching port:5683 sent to HoneyLabs sensors over UDP in the last 7 days. DNS questions and QUIC client fingerprints are decoded on the sensor. Other datagrams are kept as their first bytes and labelled by protocol where it can be recognised.
A UDP source address can be forged, so each address listed here either sent the traffic or was impersonated by whoever did. UDP traffic is kept out of verdicts, feeds, watchlists and alerts.
Your plan searches up to 7d, so 30d was shortened. Plans
204
Datagrams
96
Source addresses
18
Networks
15
Countries
1
Destination ports
Traffic by type
Service queries
204 datagrams from 96 sourcesRequests a service answers without a handshake. Scanners send them to find open DNS, NTP, SNMP or SSDP servers, which are also the servers reflection attacks abuse.
Latest CoAP datagram, to 5683/udp
payload bytes
00000000 40 01 01 01 bb 2e 77 65 6c 6c 2d 6b 6e 6f 77 6e |@.....well-known| 00000010 04 63 6f 72 65 |.core|
Destination ports
- 5683/udp CoAP204
Networks
- AS6939 Hurricane Electric LLC from 43 sources46
- AS215925 Vpsvault.host Ltd from 2 sources38
- AS29484 Ruhr-Universitaet Bochum from 1 source24
- AS209630 LLC Vash Kredit Bank from 1 source15
- AS398324 Censys, Inc. from 11 sources11
- AS51115 HLL LLC from 1 source8
- AS213412 ONYPHE SAS from 6 sources8
- AS396982 Google LLC from 8 sources8
- AS20052 Arbor Networks, Inc. from 4 sources8
- AS45102 Alibaba (US) Technology Co., Ltd. from 4 sources8
Countries
Source addresses (unverified)
| Address | Network | Cc | Sends | Datagrams | Last seen (UTC) |
|---|---|---|---|---|---|
| 185.73.23.133 | AS29484 Ruhr-Universitaet Bochum | DE | CoAP | 24 | 2026-10-11 05:19 |
| 45.205.1.231 | AS215925 Vpsvault.host Ltd | BR | CoAP | 20 | 2026-10-10 17:32 |
| 45.198.224.251 | AS215925 Vpsvault.host Ltd | US | CoAP | 18 | 2026-10-10 14:13 |
| 151.243.11.230 | AS209630 LLC Vash Kredit Bank | AE | CoAP | 15 | 2026-10-11 06:51 |
| 185.94.111.1 | AS51115 HLL LLC | RU | CoAP | 8 | 2026-10-09 11:53 |
| 93.123.109.214 | AS48090 Techoff Srv Limited | BG | CoAP | 5 | 2026-10-10 18:23 |
| 146.88.241.150 | AS20052 Arbor Networks, Inc. | US | CoAP | 5 | 2026-10-11 05:22 |
| 172.105.16.212 | AS63949 Akamai Connected Cloud | CA | CoAP | 4 | 2026-10-08 15:15 |
| 193.47.62.187 | AS216014 BestDC Limited | BG | CoAP | 4 | 2026-10-07 13:29 |
| 64.89.163.247 | AS401626 Netiface America, Inc. | US | CoAP | 3 | 2026-10-08 05:18 |
| 64.62.197.187 | AS6939 Hurricane Electric LLC | US | CoAP | 2 | 2026-10-07 08:18 |
| 118.26.104.19 | AS135377 UCLOUD INFORMATION TECHNOLOGY (HK) LIMIT | GB | CoAP | 2 | 2026-10-06 21:40 |
| 47.84.101.219 | AS45102 Alibaba (US) Technology Co., Ltd. | SG | CoAP | 2 | 2026-10-06 07:46 |
| 64.62.156.54 | AS6939 Hurricane Electric LLC | US | CoAP | 2 | 2026-10-10 00:12 |
| 217.60.76.129 | AS401626 Netiface America, Inc. | AE | CoAP | 2 | 2026-10-09 10:42 |
| 64.62.156.58 | AS6939 Hurricane Electric LLC | US | CoAP | 2 | 2026-10-09 01:32 |
| 176.65.134.60 | AS51396 Pfcloud UG (haftungsbeschrankt) | DE | CoAP | 2 | 2026-10-09 17:01 |
| 47.77.235.89 | AS45102 Alibaba (US) Technology Co., Ltd. | US | CoAP | 2 | 2026-10-09 09:44 |
| 91.230.168.119 | AS213412 ONYPHE SAS | US | CoAP | 2 | 2026-10-10 02:22 |
| 91.231.89.167 | AS213412 ONYPHE SAS | FR | CoAP | 2 | 2026-10-10 02:37 |
Latest datagrams
payload bytes
00000000 40 01 01 01 bb 2e 77 65 6c 6c 2d 6b 6e 6f 77 6e |@.....well-known| 00000010 04 63 6f 72 65 |.core|
payload bytes
00000000 40 01 01 01 bb 2e 77 65 6c 6c 2d 6b 6e 6f 77 6e |@.....well-known| 00000010 04 63 6f 72 65 |.core|
payload bytes
00000000 40 01 01 01 bb 2e 77 65 6c 6c 2d 6b 6e 6f 77 6e |@.....well-known| 00000010 04 63 6f 72 65 |.core|
payload bytes
00000000 40 01 7d 70 bb 2e 77 65 6c 6c 2d 6b 6e 6f 77 6e |@.}p..well-known| 00000010 04 63 6f 72 65 |.core|
payload bytes
00000000 40 01 7d 70 bb 2e 77 65 6c 6c 2d 6b 6e 6f 77 6e |@.}p..well-known| 00000010 04 63 6f 72 65 |.core|
payload bytes
00000000 40 01 73 6a |@.sj|
payload bytes
00000000 40 01 7d 70 bb 2e 77 65 6c 6c 2d 6b 6e 6f 77 6e |@.}p..well-known| 00000010 04 63 6f 72 65 |.core|
payload bytes
00000000 40 01 7d 70 bb 2e 77 65 6c 6c 2d 6b 6e 6f 77 6e |@.}p..well-known| 00000010 04 63 6f 72 65 |.core|
payload bytes
00000000 40 01 7d 70 bb 2e 77 65 6c 6c 2d 6b 6e 6f 77 6e |@.}p..well-known| 00000010 04 63 6f 72 65 |.core|
payload bytes
00000000 40 01 7d 70 bb 2e 77 65 6c 6c 2d 6b 6e 6f 77 6e |@.}p..well-known| 00000010 04 63 6f 72 65 |.core|
payload bytes
00000000 40 01 7d 70 bb 2e 77 65 6c 6c 2d 6b 6e 6f 77 6e |@.}p..well-known| 00000010 04 63 6f 72 65 |.core|
payload bytes
00000000 40 01 7d 70 bb 2e 77 65 6c 6c 2d 6b 6e 6f 77 6e |@.}p..well-known| 00000010 04 63 6f 72 65 |.core|
payload bytes
00000000 40 01 7d 70 bb 2e 77 65 6c 6c 2d 6b 6e 6f 77 6e |@.}p..well-known| 00000010 04 63 6f 72 65 |.core|
payload bytes
00000000 40 01 01 ce bb 2e 77 65 6c 6c 2d 6b 6e 6f 77 6e |@.....well-known| 00000010 04 63 6f 72 65 |.core|
payload bytes
00000000 40 01 7d 70 bb 2e 77 65 6c 6c 2d 6b 6e 6f 77 6e |@.}p..well-known| 00000010 04 63 6f 72 65 |.core|