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 2026-08-14. For this date, NameServerHistory found 77 DNS check records, 77 successful responses, 0 failed responses, and 334 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

77

Historical checks stored for this nameserver on selected date

Average Latency

334 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-14 23:45

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

77

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 2026-08-14 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
77 2026-08-14 23:45 639223477272309567
2028 ms 216.21.231.166
76 2026-08-14 23:30 639223467876800215
28 ms 216.21.231.166
75 2026-08-14 23:14 639223458466733344
34 ms 216.21.231.166
74 2026-08-14 22:58 639223449196197019
10 ms 216.21.231.166
73 2026-08-14 22:43 639223439729973302
8 ms 216.21.231.166
72 2026-08-14 22:27 639223430298973377
4 ms 216.21.231.166
71 2026-08-14 22:11 639223420812183061
35 ms 216.21.231.166
70 2026-08-14 21:55 639223411307572360
7 ms 216.21.231.166
69 2026-08-14 21:39 639223401895099116
32 ms 216.21.231.166
68 2026-08-14 20:47 639223370328282191
27 ms 216.21.231.166
67 2026-08-14 20:32 639223361156898888
5 ms 216.21.231.166
66 2026-08-14 20:16 639223351683501109
9 ms 216.21.231.166
65 2026-08-14 20:01 639223342485908428
39 ms 216.21.231.166
64 2026-08-14 19:45 639223333113923772
27 ms 216.21.231.166
63 2026-08-14 19:30 639223323766820131
27 ms 216.21.231.166
62 2026-08-14 19:14 639223314500774279
13 ms 216.21.231.166
61 2026-08-14 18:59 639223305225877159
43 ms 216.21.231.166
60 2026-08-14 18:43 639223295834845965
14 ms 216.21.231.166
59 2026-08-14 18:27 639223286312006616
2022 ms 216.21.231.166
58 2026-08-14 18:11 639223276659010988
28 ms 216.21.231.166
57 2026-08-14 17:55 639223267203892251
8 ms 216.21.231.166
56 2026-08-14 17:03 639223235652723921
8 ms 216.21.231.166
55 2026-08-14 16:47 639223226156684619
13 ms 216.21.231.166
54 2026-08-14 16:32 639223216737677817
10 ms 216.21.231.166
53 2026-08-14 16:16 639223207303987036
79 ms 216.21.231.166
52 2026-08-14 16:00 639223197972369650
52 ms 216.21.231.166
51 2026-08-14 15:44 639223188476518684
2021 ms 216.21.231.166
50 2026-08-14 15:29 639223179029668254
15 ms 216.21.231.166
49 2026-08-14 15:13 639223169668684371
42 ms 216.21.231.166
48 2026-08-14 14:57 639223160270013058
28 ms 216.21.231.166
47 2026-08-14 14:41 639223150848386507
6 ms 216.21.231.166
46 2026-08-14 14:26 639223141514160124
15 ms 216.21.231.166
45 2026-08-14 14:10 639223131908897269
11 ms 216.21.231.166
44 2026-08-14 13:17 639223100084750932
5 ms 216.21.231.166
43 2026-08-14 13:01 639223090744921973
45 ms 216.21.231.166
42 2026-08-14 12:45 639223081343134137
7 ms 216.21.231.166
41 2026-08-14 12:30 639223071917003603
2022 ms 216.21.231.166
40 2026-08-14 12:14 639223062407395043
11 ms 216.21.231.166
39 2026-08-14 11:58 639223052970600447
2031 ms 216.21.231.166
38 2026-08-14 11:43 639223043584242187
2016 ms 216.21.231.166
37 2026-08-14 11:27 639223034248611856
9 ms 216.21.231.166
36 2026-08-14 11:11 639223024816175094
13 ms 216.21.231.166
35 2026-08-14 10:55 639223015278211871
20 ms 216.21.231.166
34 2026-08-14 10:39 639223005387568522
39 ms 216.21.231.166
33 2026-08-14 10:23 639222995944735037
49 ms 216.21.231.166
32 2026-08-14 09:31 639222964532402826
29 ms 216.21.231.166
31 2026-08-14 09:15 639222955031971579
24 ms 216.21.231.166
30 2026-08-14 08:59 639222945616352079
2013 ms 216.21.231.166
29 2026-08-14 08:44 639222936296615644
14 ms 216.21.231.166
28 2026-08-14 08:28 639222926913151746
21 ms 216.21.231.166
27 2026-08-14 08:13 639222917608375722
68 ms 216.21.231.166
26 2026-08-14 07:57 639222908294448500
12 ms 216.21.231.166
25 2026-08-14 07:41 639222898918389753
12 ms 216.21.231.166
24 2026-08-14 07:26 639222889625876211
76 ms 216.21.231.166
23 2026-08-14 07:11 639222880353707528
15 ms 216.21.231.166
22 2026-08-14 06:55 639222871065611259
5 ms 216.21.231.166
21 2026-08-14 06:39 639222861517093112
13 ms 216.21.231.166
20 2026-08-14 05:46 639222830182717637
2019 ms 216.21.231.166
19 2026-08-14 05:31 639222820714737422
6 ms 216.21.231.166
18 2026-08-14 05:15 639222811404284741
2015 ms 216.21.231.166
17 2026-08-14 04:59 639222801994952240
17 ms 216.21.231.166
16 2026-08-14 04:44 639222792581940911
4 ms 216.21.231.166
15 2026-08-14 04:28 639222783296631220
8 ms 216.21.231.166
14 2026-08-14 04:12 639222773909528001
10 ms 216.21.231.166
13 2026-08-14 03:57 639222764574707991
4 ms 216.21.231.166
12 2026-08-14 03:41 639222754982758281
22 ms 216.21.231.166
11 2026-08-14 03:25 639222745650144239
26 ms 216.21.231.166
10 2026-08-14 03:09 639222736060223018
2009 ms 216.21.231.166
9 2026-08-14 02:54 639222726529271510
2053 ms 216.21.231.166
8 2026-08-14 02:00 639222694791257846
4 ms 216.21.231.166
7 2026-08-14 01:45 639222685350317820
58 ms 216.21.231.166
6 2026-08-14 01:29 639222675895178560
13 ms 216.21.231.166
5 2026-08-14 01:13 639222666344182743
2014 ms 216.21.231.166
4 2026-08-14 00:57 639222656762316965
17 ms 216.21.231.166
3 2026-08-14 00:41 639222647109404695
53 ms 216.21.231.166
2 2026-08-14 00:25 639222637659944389
6 ms 216.21.231.166
1 2026-08-14 00:09 639222628151417313
18 ms 216.21.231.166