route: 192.5.4.0/23
origin: AS3557
descr: F-Root covering prefix
admin-c: JSO127-ARIN
tech-c: BELLI82-ARIN
tech-c: ISCN-ARIN
tech-c: JSO127-ARIN
tech-c: RA15-ARIN
mnt-by: MNT-ISC-94-Z
created: 2024-01-30T14:15:15Z
last-modified: 2024-01-30T14:15:15Z
source: ARIN
rpki-ov-state: valid

route: 192.5.4.0/23
changed: ekb[at]isc.org 20200306
descr: Internet Systems Consortium, Inc. aka ISC
mnt-by: MAINT-AS1280
origin: AS3557
remarks: This prefix is used for the F-Root name server, and is
remarks: anycasted from multiple locations.
remarks: Please see http://f.root-servers.org/ for more information.
remarks: The server is operated by ISC, http://www.isc.org/.
remarks: Trouble reports should be sent to noc[at]isc.org which opens a
remarks: ticket. Emergency via telephone, +1 650 423 1310.
remarks: This route should only be originated by AS3557. The prefix
remarks: 192.5.4.0/23 should be seen everywhere in the world. If
remarks: you cannot see the prefix please open a ticket. Local
remarks: nodes will also announce 192.5.5.0/24 with NO_EXPORT. You
remarks: must directly peer with ISC to see the more specific route.
remarks: The other half of the prefix, 192.5.4.0/24 is used for
remarks: ISC's SNS service, see http://www.isc.org/solutions/sns/.
source: RADB
last-modified: 2023-11-13T16:00:09Z
rpki-ov-state: valid

#
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# available at: https://www.arin.net/resources/registry/whois/tou/
#
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# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
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# Copyright 1997-2025, American Registry for Internet Numbers, Ltd.
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#
# Query terms are ambiguous. The query is assumed to be:
# "r < 192.5.4.0/23"
#
# Use "?" to get help.
#

Various Registries (Maintained by ARIN) NET192 (NET-192-0-0-0-0) 192.0.0.0 - 192.255.255.255
Internet Systems Consortium, Inc. ISC-NET1 (NET-192-5-4-0-1) 192.5.4.0 - 192.5.5.255



#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2025, American Registry for Internet Numbers, Ltd.
#