206208 looking glass

2001:500:d937::/48 RPKI valid MOAS

Announced by 8 different origins, which is either a deliberate multi-origin setup or a hijack.

This prefix is announced by more than one AS. Compare how many collector peers see each origin below: a hijack is usually visible as a second origin seen by far fewer peers than the legitimate one.

Origins

Origin ASRPKI Peers seeing itSample path First seenLast seen
AS396566 Verisign Anycast NL 0L RPKI valid 13 33337342396566 2026-09-18 2026-09-19
AS19836 Verisign Anycast US 2M RPKI valid 12 380019002734219836 2026-09-18 2026-09-19
AS396576 Verisign Anycast US 1M RPKI valid 2 6121869397342396576 2026-09-18 2026-09-19
AS40647 Verisign Anycast NL 0C RPKI valid 2 503041299734240647 2026-09-19 2026-09-19
AS396599 Verisign Anycast FR 0F RPKI valid 1 58057183633567342396599 2026-09-19 2026-09-19
AS21313 Verisign Anycast FR 0A RPKI valid 1 345491299734221313 2026-09-18 2026-09-19
AS397195 Verisign Anycast US 2P RPKI valid 1 2162858280676229147342397195 2026-09-19 2026-09-19
AS36623 Verisign Anycast JP 0D RPKI valid 1 176393356734236623 2026-09-18 2026-09-19

RPKI

64 ROAs cover this prefix

ROA prefixMax lengthAuthorised originTrust anchorResult for this route
2001:500:d937::/48 /48 AS10515 arin wrong origin
2001:500:d937::/48 /48 AS19836 arin wrong origin
2001:500:d937::/48 /48 AS20172 arin wrong origin
2001:500:d937::/48 /48 AS20362 arin wrong origin
2001:500:d937::/48 /48 AS20431 arin wrong origin
2001:500:d937::/48 /48 AS21313 arin wrong origin
2001:500:d937::/48 /48 AS22547 arin wrong origin
2001:500:d937::/48 /48 AS25485 arin wrong origin
2001:500:d937::/48 /48 AS27544 arin wrong origin
2001:500:d937::/48 /48 AS32651 arin wrong origin
2001:500:d937::/48 /48 AS36616 arin wrong origin
2001:500:d937::/48 /48 AS36617 arin wrong origin
2001:500:d937::/48 /48 AS36618 arin wrong origin
2001:500:d937::/48 /48 AS36619 arin wrong origin
2001:500:d937::/48 /48 AS36620 arin wrong origin
2001:500:d937::/48 /48 AS36621 arin wrong origin
2001:500:d937::/48 /48 AS36622 arin wrong origin
2001:500:d937::/48 /48 AS36623 arin wrong origin
2001:500:d937::/48 /48 AS36624 arin wrong origin
2001:500:d937::/48 /48 AS36625 arin wrong origin
2001:500:d937::/48 /48 AS36626 arin wrong origin
2001:500:d937::/48 /48 AS36627 arin wrong origin
2001:500:d937::/48 /48 AS36628 arin wrong origin
2001:500:d937::/48 /48 AS36629 arin wrong origin
2001:500:d937::/48 /48 AS36630 arin wrong origin
2001:500:d937::/48 /48 AS36631 arin wrong origin
2001:500:d937::/48 /48 AS36632 arin wrong origin
2001:500:d937::/48 /48 AS40647 arin wrong origin
2001:500:d937::/48 /48 AS40717 arin wrong origin
2001:500:d937::/48 /48 AS211369 arin wrong origin
2001:500:d937::/48 /48 AS396540 arin wrong origin
2001:500:d937::/48 /48 AS396541 arin wrong origin
2001:500:d937::/48 /48 AS396542 arin wrong origin
2001:500:d937::/48 /48 AS396543 arin wrong origin
2001:500:d937::/48 /48 AS396544 arin wrong origin
2001:500:d937::/48 /48 AS396545 arin wrong origin
2001:500:d937::/48 /48 AS396546 arin wrong origin
2001:500:d937::/48 /48 AS396547 arin wrong origin
2001:500:d937::/48 /48 AS396549 arin wrong origin
2001:500:d937::/48 /48 AS396550 arin wrong origin
2001:500:d937::/48 /48 AS396551 arin wrong origin
2001:500:d937::/48 /48 AS396552 arin wrong origin
2001:500:d937::/48 /48 AS396553 arin wrong origin
2001:500:d937::/48 /48 AS396555 arin wrong origin
2001:500:d937::/48 /48 AS396560 arin wrong origin
2001:500:d937::/48 /48 AS396561 arin wrong origin
2001:500:d937::/48 /48 AS396562 arin wrong origin
2001:500:d937::/48 /48 AS396563 arin wrong origin
2001:500:d937::/48 /48 AS396564 arin wrong origin
2001:500:d937::/48 /48 AS396565 arin wrong origin
2001:500:d937::/48 /48 AS396566 arin authorises it
2001:500:d937::/48 /48 AS396567 arin wrong origin
2001:500:d937::/48 /48 AS396571 arin wrong origin
2001:500:d937::/48 /48 AS396572 arin wrong origin
2001:500:d937::/48 /48 AS396573 arin wrong origin
2001:500:d937::/48 /48 AS396576 arin wrong origin
2001:500:d937::/48 /48 AS396578 arin wrong origin
2001:500:d937::/48 /48 AS396580 arin wrong origin
2001:500:d937::/48 /48 AS396581 arin wrong origin
2001:500:d937::/48 /48 AS396582 arin wrong origin
2001:500:d937::/48 /48 AS396583 arin wrong origin
2001:500:d937::/48 /48 AS396584 arin wrong origin
2001:500:d937::/48 /48 AS396585 arin wrong origin
2001:500:d937::/48 /48 AS396586 arin wrong origin

Registry

Who this address space is delegated to, regardless of whether it is routed

Delegated block
2001:500:d937::/48
RIR
ARIN
Country
🇺🇸 US
Status
allocated
Allocated
2010-05-18

Less specific routes

Announced prefixes that contain this one

Prefix Origin RPKI Peers Sample path First seen
2000::/6 v6 AS29632 Netassist International EOOD no ROA 1 6121829632 2026-09-18

More specific routes

0 announced prefixes inside this one

Nothing more specific is announced.

Recorded changes

WhenChangeOriginPath
2026-09-20 04:44:54Z origin change AS396566 → AS19836 3480029632900273421983619836
2026-09-19 08:28:16Z origin change AS19836 → AS396566 2950469397342396566396566
2026-09-19 07:59:53Z origin change AS21313 → AS19836 4943248362900273421983619836
2026-09-19 07:58:53Z origin change AS19836 → AS21313 4943248362129973422131321313
2026-09-19 02:26:11Z origin change AS21313 → AS19836 4943248362900273421983619836
2026-09-19 02:25:17Z origin change AS19836 → AS21313 4943221551048362129973422131321313
2026-09-18 20:50:59Z origin change AS396576 → AS19836 14907693973421983619836
2026-09-18 20:50:29Z origin change AS396599 → AS396576 1490769397342396576396576
2026-09-18 19:26:58Z origin change AS397195 → AS396599 58057183633567342396599396599
2026-09-18 19:00:15Z origin change AS40647 → AS397195 2162858280676229147342397195397195
2026-09-18 17:13:40Z origin change AS396566 → AS40647 50304129973424064740647
2026-09-18 07:10:58Z origin change AS19836 → AS396566 57381427087342396566396566
2026-09-18 06:41:38Z origin change AS21313 → AS19836 4943248362900273421983619836
2026-09-18 06:41:21Z origin change AS397195 → AS21313 4943221551048362129973422131321313