206208 looking glass

AS1540 Headquarters, USAISC 🇺🇸 US

Announcing 2,090 prefixes, seen at the RIS collectors.

IPv4 prefixes
2,026
8,401,664 (32,819 × /24)
IPv6 prefixes
64
64 × /48
Upstreams
2
transit providers observed
Peers
1
settlement-free adjacencies
Downstreams
3
transit customers observed
Customer cone
0
ASes reachable through it

Registry and operator data

AS number
AS1540
Name
Headquarters, USAISC
Organisation
Headquarters, USAISC
Country
🇺🇸 US
RIR
ARIN
Allocated
2004-05-12

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

0 valid (0.0%) 0 invalid (0.0%) 2,090 no ROA (100.0%)

Announcement history

One point per day, recorded at each table import

05071k2k2k09-1809-2510-0210-0910-1610-2310-3010-31
IPv4 IPv6

Recorded changes

New prefixes and origin changes seen on the live stream

WhenChangePrefixOriginPath
2026-10-30 20:32:07Z new prefix 143.74.10.0/24 AS1540 Headquarters, USAISC 491345335669393356721721270641540
2026-10-29 23:01:34Z new prefix 155.30.229.0/24 AS1540 Headquarters, USAISC 6121869393356721721270641540
2026-10-29 02:57:58Z origin change 214.37.210.0/24 AS367 → AS1540 6121869393356721721270641540
2026-10-28 19:39:59Z new prefix 155.30.228.0/24 AS1540 Headquarters, USAISC 1490712993356721721270641540
2026-10-28 19:20:11Z origin change 6.72.248.0/22 AS1540 → AS749 204092340193562555113356749
2026-10-28 19:20:11Z origin change 6.72.248.0/22 AS749 → AS1540 2040921989781743356721721270641540
2026-10-28 19:20:02Z origin change 6.72.248.0/22 AS1540 → AS749 496731238955113356749
2026-10-28 19:20:02Z origin change 6.72.248.0/22 AS749 → AS1540 49673123893356721721270641540
2026-10-28 19:10:41Z origin change 6.72.248.0/22 AS749 → AS1540 503003356721721270641540
2026-10-28 19:10:17Z origin change 6.72.248.0/22 AS1540 → AS749 5030032573356749
2026-10-28 19:08:46Z origin change 6.72.248.0/22 AS1540 → AS749 349271299129912993356749
2026-10-28 19:08:46Z origin change 6.72.248.0/22 AS749 → AS1540 3492712993356721721270641540
2026-10-28 19:08:27Z origin change 6.72.248.0/22 AS749 → AS1540 2448229143356721721270641540
2026-10-28 19:08:26Z origin change 6.72.248.0/22 AS1540 → AS749 20409220766290751743356749
2026-10-28 19:08:25Z origin change 6.72.248.0/22 AS749 → AS1540 494324836217643356721721270641540
2026-10-28 19:08:18Z origin change 6.72.248.0/22 AS1540 → AS749 58057183655113356749
2026-10-28 19:08:16Z origin change 6.72.248.0/22 AS749 → AS1540 3798956300132132465790023356721721270641540
2026-10-28 19:08:13Z origin change 6.72.248.0/22 AS1540 → AS749 20409220766290751743356749
2026-10-28 19:08:12Z origin change 6.72.248.0/22 AS749 → AS1540 85232573356721721270641540
2026-10-28 19:08:11Z origin change 6.72.248.0/22 AS749 → AS1540 2040921989781743356721721270641540
2026-10-28 19:08:11Z origin change 6.72.248.0/22 AS1540 → AS749 204092340193562555113356749
2026-10-28 19:08:10Z origin change 6.72.248.0/22 AS1540 → AS749 5805718361743356749
2026-10-28 19:08:07Z origin change 6.72.248.0/22 AS749 → AS1540 1328253356721721270641540
2026-10-28 19:08:06Z origin change 6.72.248.0/22 AS1540 → AS749 38001747364533356749
2026-10-28 19:08:00Z origin change 6.72.248.0/22 AS749 → AS1540 226521743356721721270641540
2026-10-28 19:07:59Z origin change 6.72.248.0/22 AS749 → AS1540 138309713356721721270641540
2026-10-28 19:07:59Z origin change 6.72.248.0/22 AS1540 → AS749 443933942561743356749
2026-10-28 19:07:59Z origin change 6.72.248.0/22 AS749 → AS1540 202365506731743356721721270641540
2026-10-28 19:07:59Z origin change 6.72.248.0/22 AS1540 → AS749 443933942561743356749
2026-10-28 19:07:58Z origin change 6.72.248.0/22 AS1540 → AS749 443933942561743356749
2026-10-28 19:07:56Z origin change 6.72.248.0/22 AS749 → AS1540 2020512993356721721270641540
2026-10-28 19:07:55Z origin change 6.72.248.0/22 AS749 → AS1540 202051743356721721270641540
2026-10-28 19:07:55Z origin change 6.72.248.0/22 AS1540 → AS749 4913453356642464613356749
2026-10-28 19:07:46Z origin change 6.72.248.0/22 AS749 → AS1540 4608122146373356721721270641540
2026-10-28 19:07:45Z origin change 6.72.248.0/22 AS1540 → AS749 2448264533356749
2026-10-28 19:07:44Z origin change 6.72.248.0/22 AS749 → AS1540 149073356721721270641540
2026-10-28 19:07:44Z origin change 6.72.248.0/22 AS749 → AS1540 481853356721721270641540
2026-10-28 19:07:43Z origin change 6.72.248.0/22 AS1540 → AS749 85229143356749
2026-10-28 19:07:43Z origin change 6.72.248.0/22 AS1540 → AS749 49432215510315431743356749
2026-10-28 19:07:42Z origin change 6.72.248.0/22 AS749 → AS1540 2064993454929143356721721270641540
2026-10-28 19:07:42Z origin change 6.72.248.0/22 AS1540 → AS749 202051743356749
2026-10-28 19:07:42Z origin change 6.72.248.0/22 AS749 → AS1540 295043939212993356721721270641540
2026-10-28 19:07:41Z origin change 6.72.248.0/22 AS1540 → AS749 4913453356642464613356749
2026-10-28 18:55:12Z new prefix 155.30.228.0/23 AS1540 Headquarters, USAISC 443935805769393356721721270641540
2026-10-28 18:39:31Z origin change 6.72.248.0/22 AS1540 → AS749 5030032573356749
2026-10-28 18:39:24Z origin change 6.72.248.0/22 AS749 → AS1540 216285828067623356721721270641540
2026-10-28 18:38:48Z origin change 6.72.248.0/22 AS749 → AS1540 573815030412993356721721270641540
2026-10-28 18:38:44Z origin change 6.72.248.0/22 AS1540 → AS749 599191277932573356749
2026-10-28 18:38:34Z origin change 6.72.248.0/22 AS749 → AS1540 5030412993356721721270641540
2026-10-28 18:38:33Z origin change 6.72.248.0/22 AS1540 → AS749 5062864533356749
2026-10-28 18:38:30Z origin change 6.72.248.0/22 AS749 → AS1540 35493356721721270641540
2026-10-28 18:38:22Z origin change 6.72.248.0/22 AS1540 → AS749 176391743356749
2026-10-28 18:38:19Z origin change 6.72.248.0/22 AS749 → AS1540 377213356721721270641540
2026-10-28 18:38:13Z origin change 6.72.248.0/22 AS1540 → AS749 599191277932573356749
2026-10-28 18:38:00Z origin change 6.72.248.0/22 AS749 → AS1540 14035773356721721270641540
2026-10-28 18:37:50Z origin change 6.72.248.0/22 AS749 → AS1540 14035773356721721270641540
2026-10-28 18:37:50Z origin change 6.72.248.0/22 AS1540 → AS749 14035773356749
2026-10-28 18:37:47Z origin change 6.72.248.0/22 AS1540 → AS749 2064993454929143356749
2026-10-28 18:37:24Z origin change 6.72.248.0/22 AS749 → AS1540 35493356721721270641540
2026-10-28 18:37:24Z origin change 6.72.248.0/22 AS1540 → AS749 1328251743356749
2026-10-28 18:37:12Z origin change 6.72.248.0/22 AS749 → AS1540 149073356721721270641540
2026-10-28 18:37:12Z origin change 6.72.248.0/22 AS1540 → AS749 1490712993356749
2026-10-28 18:27:06Z new prefix 143.74.7.0/24 AS1540 Headquarters, USAISC 4439339425669393356721721270641540
2026-10-28 17:18:10Z origin change 6.72.248.0/22 AS1540 → AS749 580573454929143356749
2026-10-28 17:18:09Z origin change 6.72.248.0/22 AS1540 → AS749 85212993356749
2026-10-28 17:18:09Z origin change 6.72.248.0/22 AS1540 → AS749 6121869393356749
2026-10-28 17:18:09Z origin change 6.72.248.0/22 AS1540 → AS749 494324836212993356749
2026-10-28 17:18:08Z origin change 6.72.248.0/22 AS1540 → AS749 491345335669393356749
2026-10-28 17:18:06Z origin change 6.72.248.0/22 AS749 → AS1540 494324836290023356721721270641540
2026-10-28 17:18:06Z origin change 6.72.248.0/22 AS749 → AS1540 49673123893356721721270641540
2026-10-28 17:18:05Z origin change 6.72.248.0/22 AS749 → AS1540 70183356721721270641540
2026-10-28 17:18:04Z origin change 6.72.248.0/22 AS749 → AS1540 138309711743356721721270641540
2026-10-27 15:59:04Z new prefix 6.16.48.0/24 AS1540 Headquarters, USAISC 6121869393356721721721721721721721270651540
2026-10-27 15:51:33Z new prefix 6.16.115.0/24 AS1540 Headquarters, USAISC 1763912993356721721270651540
2026-10-27 15:14:16Z origin change 143.86.166.0/23 AS367 → AS1540 1763912993356721721270641540
2026-10-27 15:14:16Z origin change 143.86.163.0/24 AS367 → AS1540 138309713356721721270641540
2026-10-26 18:42:16Z new prefix 155.30.10.0/24 AS1540 Headquarters, USAISC 1763969393356721721270641540
2026-10-26 16:58:05Z new prefix 144.107.194.0/24 AS1540 Headquarters, USAISC 1763969393356721721270641540
2026-10-26 16:58:05Z new prefix 144.107.192.0/21 AS1540 Headquarters, USAISC 1763969393356721721270641540
2026-10-26 16:58:05Z new prefix 144.107.192.0/24 AS1540 Headquarters, USAISC 1763969393356721721270641540
2026-10-26 16:49:19Z new prefix 158.11.48.0/23 AS1540 Headquarters, USAISC 6121869393356721721270641540
2026-10-26 16:47:50Z new prefix 158.11.58.0/24 AS1540 Headquarters, USAISC 349271218612993356721721270641540
2026-10-26 16:26:19Z new prefix 158.11.57.0/24 AS1540 Headquarters, USAISC 491345335669393356721721270641540
2026-10-24 20:28:12Z new prefix 155.30.252.0/24 AS1540 Headquarters, USAISC 491345335669393356721721270641540
2026-10-24 19:50:13Z new prefix 155.30.251.0/24 AS1540 Headquarters, USAISC 4439339425669393356721721270641540
2026-10-24 14:09:02Z new prefix 155.30.253.0/24 AS1540 Headquarters, USAISC 1490712993356721721270641540
2026-10-23 17:44:23Z new prefix 155.30.21.0/24 AS1540 Headquarters, USAISC 491345335669393356721721270641540
2026-10-23 16:33:13Z new prefix 160.136.115.0/24 AS1540 Headquarters, USAISC 1763969393356721721270643671540
2026-10-23 03:12:01Z new prefix 147.104.249.0/24 AS1540 Headquarters, USAISC 202365506733389112993356721721270641540
2026-10-23 03:12:01Z new prefix 199.113.1.0/24 AS1540 Headquarters, USAISC 202365506733389112993356721721270641540
2026-10-22 20:03:19Z origin change 158.11.44.0/24 AS367 → AS1540 3454912993356721721270641540
2026-10-22 17:23:53Z new prefix 160.136.63.0/24 AS1540 Headquarters, USAISC 202365506733389112993356721721270641540
2026-10-22 17:07:23Z new prefix 160.136.62.0/24 AS1540 Headquarters, USAISC 4818512993356721721270641540
2026-10-22 17:03:21Z new prefix 160.136.61.0/24 AS1540 Headquarters, USAISC 349271218612993356721721270641540
2026-10-22 00:07:04Z origin change 2608:181:18f0::/48 AS367 → AS1540 5782169393356721721270643671540
2026-10-21 22:46:01Z origin change 2608:189:18d0::/48 AS367 → AS1540 1490769393356721721270641540
2026-10-21 22:36:33Z origin change 155.8.0.0/16 AS367 → AS1540 491345335669393356721721270641540
2026-10-21 22:36:11Z origin change 147.51.0.0/16 AS367 → AS1540 6121869393356721721270641540
2026-10-21 22:36:11Z origin change 6.42.64.0/18 AS367 → AS1540 6121869393356721721270641540
2026-10-21 22:36:11Z origin change 160.140.247.0/24 AS367 → AS1540 6121869393356721721270641540