DNS response history for ns4.a2sys.co

ns4.a2sys.co 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 2026-08-24. For this date, NameServerHistory found 56 DNS check records, 56 successful responses, 0 failed responses, and 172 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 ns4.a2sys.co.
Records on Selected Date

56

Historical checks stored for this nameserver on selected date

Average Latency

172 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-24 23:46

All timestamps shown in UTC

Latest Resolved IP on Selected Date

139.99.122.116

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 ns4.a2sys.co

Showing DNS history for 2026-08-24 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 2026-08-24 23:46 639232119551972438
16 ms 139.99.122.116
55 2026-08-24 23:29 639232109112567473
12 ms 139.99.122.116
54 2026-08-24 22:36 639232077430823987
14 ms 139.99.122.116
53 2026-08-24 22:19 639232067340513033
11 ms 139.99.122.116
52 2026-08-24 22:02 639232057157944387
22 ms 139.99.122.116
51 2026-08-24 21:45 639232046895282144
38 ms 139.99.122.116
50 2026-08-24 20:51 639232014356623395
114 ms 139.99.122.116
49 2026-08-24 20:34 639232004177831322
15 ms 139.99.122.116
48 2026-08-24 20:17 639231993997863976
11 ms 139.99.122.116
47 2026-08-24 20:00 639231983967363696
78 ms 139.99.122.116
46 2026-08-24 19:07 639231952257842845
19 ms 139.99.122.116
45 2026-08-24 18:51 639231942277816756
17 ms 139.99.122.116
44 2026-08-24 18:34 639231932094180724
6 ms 139.99.122.116
43 2026-08-24 18:17 639231922041034838
26 ms 139.99.122.116
42 2026-08-24 17:24 639231890488117536
45 ms 139.99.122.116
41 2026-08-24 17:08 639231880574255543
21 ms 139.99.122.116
40 2026-08-24 16:51 639231870418029045
15 ms 139.99.122.116
39 2026-08-24 16:34 639231860258429562
24 ms 139.99.122.116
38 2026-08-24 15:40 639231828211839931
2044 ms 139.99.122.116
37 2026-08-24 15:23 639231818080917481
20 ms 139.99.122.116
36 2026-08-24 15:07 639231807961539652
12 ms 139.99.122.116
35 2026-08-24 14:49 639231797631669865
19 ms 139.99.122.116
34 2026-08-24 13:57 639231765923559455
8 ms 139.99.122.116
33 2026-08-24 13:40 639231755868832964
34 ms 139.99.122.116
32 2026-08-24 13:23 639231745628278877
59 ms 139.99.122.116
31 2026-08-24 13:06 639231735407682062
14 ms 139.99.122.116
30 2026-08-24 12:13 639231703815441688
2091 ms 139.99.122.116
29 2026-08-24 11:56 639231693747052549
16 ms 139.99.122.116
28 2026-08-24 11:40 639231683712487276
13 ms 139.99.122.116
27 2026-08-24 11:23 639231673513573868
5 ms 139.99.122.116
26 2026-08-24 10:30 639231641791249939
27 ms 139.99.122.116
25 2026-08-24 10:13 639231631866211033
11 ms 139.99.122.116
24 2026-08-24 09:56 639231621644955316
29 ms 139.99.122.116
23 2026-08-24 09:39 639231611478799259
18 ms 139.99.122.116
22 2026-08-24 08:47 639231579923718211
22 ms 139.99.122.116
21 2026-08-24 08:30 639231569810702936
7 ms 139.99.122.116
20 2026-08-24 08:13 639231559762411619
6 ms 139.99.122.116
19 2026-08-24 07:56 639231549663595407
20 ms 139.99.122.116
18 2026-08-24 07:04 639231518076817246
12 ms 139.99.122.116
17 2026-08-24 06:47 639231508078650885
114 ms 139.99.122.116
16 2026-08-24 06:30 639231498210697093
39 ms 139.99.122.116
15 2026-08-24 06:14 639231488109699360
17 ms 139.99.122.116
14 2026-08-24 05:21 639231456772510692
22 ms 139.99.122.116
13 2026-08-24 05:05 639231447084631185
42 ms 139.99.122.116
12 2026-08-24 04:49 639231437208519473
86 ms 139.99.122.116
11 2026-08-24 04:32 639231427209627490
2017 ms 139.99.122.116
10 2026-08-24 03:40 639231395791246644
32 ms 139.99.122.116
9 2026-08-24 03:24 639231386075551458
32 ms 139.99.122.116
8 2026-08-24 03:07 639231376208713791
2090 ms 139.99.122.116
7 2026-08-24 02:50 639231366170589276
16 ms 139.99.122.116
6 2026-08-24 01:58 639231334732159368
18 ms 139.99.122.116
5 2026-08-24 01:42 639231325035670078
23 ms 139.99.122.116
4 2026-08-24 01:25 639231315132253837
31 ms 139.99.122.116
3 2026-08-24 01:08 639231305014280808
15 ms 139.99.122.116
2 2026-08-24 00:16 639231273779380675
19 ms 139.99.122.116
1 2026-08-24 00:00 639231264180839154
19 ms 139.99.122.116