DNS response history for ns21.customer.level3.net

ns21.customer.level3.net 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 52 DNS check records, 52 successful responses, 0 failed responses, and 183 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 ns21.customer.level3.net.
Records on Selected Date

52

Historical checks stored for this nameserver on selected date

Average Latency

183 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-24 22:07

All timestamps shown in UTC

Latest Resolved IP on Selected Date

209.244.5.84

Most recently resolved hosting IP on selected date

Successful Responses

52

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 ns21.customer.level3.net

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
52 2026-08-24 22:07 639232057157944387
120 ms 209.244.5.84
51 2026-08-24 21:50 639232046895282144
32 ms 209.244.5.84
50 2026-08-24 20:56 639232014356623395
59 ms 209.244.5.84
49 2026-08-24 20:39 639232004177831322
17 ms 209.244.5.84
48 2026-08-24 20:22 639231993997863976
28 ms 209.244.5.84
47 2026-08-24 20:05 639231983967363696
78 ms 209.244.5.84
46 2026-08-24 19:13 639231952257842845
2015 ms 209.244.5.84
45 2026-08-24 18:56 639231942277816756
30 ms 209.244.5.84
44 2026-08-24 18:39 639231932094180724
9 ms 209.244.5.84
43 2026-08-24 18:22 639231922041034838
2043 ms 209.244.5.84
42 2026-08-24 17:29 639231890488117536
22 ms 209.244.5.84
41 2026-08-24 17:13 639231880574255543
34 ms 209.244.5.84
40 2026-08-24 16:56 639231870418029045
17 ms 209.244.5.84
39 2026-08-24 16:39 639231860258429562
22 ms 209.244.5.84
38 2026-08-24 15:46 639231828211839931
81 ms 209.244.5.84
37 2026-08-24 15:29 639231818080917481
16 ms 209.244.5.84
36 2026-08-24 15:12 639231807961539652
17 ms 209.244.5.84
35 2026-08-24 14:55 639231797631669865
55 ms 209.244.5.84
34 2026-08-24 14:02 639231765923559455
29 ms 209.244.5.84
33 2026-08-24 13:45 639231755868832964
15 ms 209.244.5.84
32 2026-08-24 13:28 639231745628278877
17 ms 209.244.5.84
31 2026-08-24 13:11 639231735407682062
15 ms 209.244.5.84
30 2026-08-24 12:18 639231703815441688
61 ms 209.244.5.84
29 2026-08-24 12:02 639231693747052549
25 ms 209.244.5.84
28 2026-08-24 11:45 639231683712487276
25 ms 209.244.5.84
27 2026-08-24 11:28 639231673513573868
14 ms 209.244.5.84
26 2026-08-24 10:35 639231641791249939
15 ms 209.244.5.84
25 2026-08-24 10:19 639231631866211033
16 ms 209.244.5.84
24 2026-08-24 10:02 639231621644955316
19 ms 209.244.5.84
23 2026-08-24 09:45 639231611478799259
25 ms 209.244.5.84
22 2026-08-24 08:52 639231579923718211
16 ms 209.244.5.84
21 2026-08-24 08:35 639231569810702936
9 ms 209.244.5.84
20 2026-08-24 08:18 639231559762411619
2027 ms 209.244.5.84
19 2026-08-24 08:02 639231549663595407
32 ms 209.244.5.84
18 2026-08-24 07:09 639231518076817246
13 ms 209.244.5.84
17 2026-08-24 06:52 639231508078650885
13 ms 209.244.5.84
16 2026-08-24 06:36 639231498210697093
21 ms 209.244.5.84
15 2026-08-24 06:19 639231488109699360
30 ms 209.244.5.84
14 2026-08-24 05:27 639231456772510692
39 ms 209.244.5.84
13 2026-08-24 05:11 639231447084631185
41 ms 209.244.5.84
12 2026-08-24 04:54 639231437208519473
13 ms 209.244.5.84
11 2026-08-24 04:37 639231427209627490
29 ms 209.244.5.84
10 2026-08-24 03:45 639231395791246644
12 ms 209.244.5.84
9 2026-08-24 03:29 639231386075551458
14 ms 209.244.5.84
8 2026-08-24 03:13 639231376208713791
63 ms 209.244.5.84
7 2026-08-24 02:56 639231366170589276
33 ms 209.244.5.84
6 2026-08-24 02:03 639231334732159368
8 ms 209.244.5.84
5 2026-08-24 01:47 639231325035670078
19 ms 209.244.5.84
4 2026-08-24 01:31 639231315132253837
10 ms 209.244.5.84
3 2026-08-24 01:14 639231305014280808
14 ms 209.244.5.84
2 2026-08-24 00:22 639231273779380675
2035 ms 209.244.5.84
1 2026-08-24 00:06 639231264180839154
39 ms 209.244.5.84