DNS response history for dns166.a.register.com

dns166.a.register.com is a DNS nameserver monitored by NameServerHistory. This page provides historical DNS response-time data, nameserver uptime signals, DNS latency observations, resolved IP history, successful response counts, failed response counts, and reliability indicators for this nameserver.

The selected UTC date is 2026-08-28. For this date, NameServerHistory found 56 DNS check records, 56 successful responses, 0 failed responses, and 276 ms average response time. Current selected-date status: At least one successful DNS response was recorded for the selected date.

  • Use this report to investigate historical DNS uptime and nameserver reliability.
  • Compare DNS latency changes, failed DNS checks, and response behavior over time.
  • Review the latest resolved IP address and raw DNS check history for dns166.a.register.com.
Records on Selected Date

56

Historical checks stored for this nameserver on selected date

Average Latency

276 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-28 23:48

All timestamps shown in UTC

Latest Resolved IP on Selected Date

216.21.231.166

Most recently resolved hosting IP on selected date

Successful Responses

56

Checks that returned a measurable response

Failed Responses

0

Checks with no response or no returned latency

Failure Rate

0%

Based on the selected date history

Selected Date Status

Responsive

At least one successful response exists on selected date

History for dns166.a.register.com

Showing DNS history for 2026-08-28 UTC. Newest records appear first.

Latency bars are scaled to a maximum of 5000 ms for quick visual comparison.

# Query Time (UTC) Correlation ID Latency Response IP Address
56 2026-08-28 23:48 639235574865467349
9 ms 216.21.231.166
55 2026-08-28 23:31 639235564640220198
24 ms 216.21.231.166
54 2026-08-28 23:14 639235554328938529
4 ms 216.21.231.166
53 2026-08-28 22:56 639235543879452837
5 ms 216.21.231.166
52 2026-08-28 22:03 639235511923394567
51 ms 216.21.231.166
51 2026-08-28 21:46 639235501571282412
2012 ms 216.21.231.166
50 2026-08-28 21:28 639235491147763512
28 ms 216.21.231.166
49 2026-08-28 21:11 639235480607057252
22 ms 216.21.231.166
48 2026-08-28 20:17 639235448504869535
44 ms 216.21.231.166
47 2026-08-28 20:00 639235438205961423
75 ms 216.21.231.166
46 2026-08-28 19:43 639235427771603643
2051 ms 216.21.231.166
45 2026-08-28 19:25 639235417327437217
2027 ms 216.21.231.166
44 2026-08-28 18:32 639235385468729647
46 ms 216.21.231.166
43 2026-08-28 18:15 639235375227508188
23 ms 216.21.231.166
42 2026-08-28 17:58 639235364947407812
2037 ms 216.21.231.166
41 2026-08-28 17:40 639235354434017190
18 ms 216.21.231.166
40 2026-08-28 16:47 639235322621629103
38 ms 216.21.231.166
39 2026-08-28 16:30 639235312230592801
52 ms 216.21.231.166
38 2026-08-28 16:13 639235301738139314
5 ms 216.21.231.166
37 2026-08-28 15:55 639235291168160936
6 ms 216.21.231.166
36 2026-08-28 15:01 639235258803654519
7 ms 216.21.231.166
35 2026-08-28 14:44 639235248596087996
6 ms 216.21.231.166
34 2026-08-28 14:27 639235238225955920
11 ms 216.21.231.166
33 2026-08-28 14:09 639235227727862105
64 ms 216.21.231.166
32 2026-08-28 13:15 639235195230848570
37 ms 216.21.231.166
31 2026-08-28 12:58 639235184840503274
30 ms 216.21.231.166
30 2026-08-28 12:40 639235174453894956
41 ms 216.21.231.166
29 2026-08-28 12:23 639235163898672622
12 ms 216.21.231.166
28 2026-08-28 11:30 639235132147470568
25 ms 216.21.231.166
27 2026-08-28 11:13 639235121907744088
30 ms 216.21.231.166
26 2026-08-28 10:55 639235111428014262
42 ms 216.21.231.166
25 2026-08-28 10:38 639235100921813626
6 ms 216.21.231.166
24 2026-08-28 09:44 639235068670703481
25 ms 216.21.231.166
23 2026-08-28 09:27 639235058337459445
11 ms 216.21.231.166
22 2026-08-28 09:09 639235047825109146
7 ms 216.21.231.166
21 2026-08-28 08:52 639235037383229033
33 ms 216.21.231.166
20 2026-08-28 07:59 639235005619242711
68 ms 216.21.231.166
19 2026-08-28 07:42 639234995310346584
2041 ms 216.21.231.166
18 2026-08-28 07:25 639234984946548933
4 ms 216.21.231.166
17 2026-08-28 07:07 639234974608077290
44 ms 216.21.231.166
16 2026-08-28 06:14 639234942529845595
43 ms 216.21.231.166
15 2026-08-28 05:57 639234932259126627
38 ms 216.21.231.166
14 2026-08-28 05:39 639234921916735988
8 ms 216.21.231.166
13 2026-08-28 05:22 639234911470038027
54 ms 216.21.231.166
12 2026-08-28 04:29 639234879588411654
20 ms 216.21.231.166
11 2026-08-28 04:12 639234869341589104
52 ms 216.21.231.166
10 2026-08-28 03:55 639234859012216675
3 ms 216.21.231.166
9 2026-08-28 03:37 639234848695364934
12 ms 216.21.231.166
8 2026-08-28 02:45 639234816952458162
5 ms 216.21.231.166
7 2026-08-28 02:28 639234806773081598
3 ms 216.21.231.166
6 2026-08-28 02:10 639234796382955255
4 ms 216.21.231.166
5 2026-08-28 01:53 639234786015782563
12 ms 216.21.231.166
4 2026-08-28 00:59 639234753811917646
2016 ms 216.21.231.166
3 2026-08-28 00:43 639234743739767811
2020 ms 216.21.231.166
2 2026-08-28 00:25 639234733372362811
20 ms 216.21.231.166
1 2026-08-28 00:08 639234723048550337
16 ms 216.21.231.166