View

If you are scraping this block for the prefixes that a AS originates, please use the data dumps in https://bgp.tools/kb/api and cache them

	Prefix	Description
	149.20.2.0/24	Internet Systems Consortium, Inc.
	149.20.3.0/24	Internet Systems Consortium, Inc.
	149.20.4.0/24	Internet Systems Consortium, Inc.
	149.20.57.0/24	Internet Systems Consortium, Inc.
	149.20.66.0/24	Internet Systems Consortium, Inc.
	192.158.248.0/24	Internet Systems Consortium, Inc.
	192.158.249.0/24	Internet Systems Consortium, Inc.
	2001:500:6b::/48	Internet Systems Consortium, Inc.

---

Network Policy

Click here to learn more about what this graph means and what makes up a network policy Global Aggregation Policy admiring_meitner Policy happy_bhabha

Chart Display Options

Display links using non straight lines

Prefixes in selected policy

Load all prefixes in policy

---

How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS6939	Hurricane Electric LLC	✔	✔
	AS6461	Zayo Bandwidth	✔	✔

---

Peers

	ASN	Description	IPv4	IPv6
	AS6939	Hurricane Electric LLC	✔	✔
	AS6461	Zayo Bandwidth	✔	✔
	AS398447	OHANACRAFT, LLC	✔	✔
	AS34927	iFog GmbH	✔	✔
	AS395823	doof.net	✔	✔
	AS3557	ISC - F-root	✔	✔
	AS400587	Ryamer, LLC	✘	✔
	AS52025	ParadoxNetworks Limited	✘	✔
	AS36236	NetActuate, Inc	✔	✔
	AS26073	Cofractal, Inc.	✘	✔
	AS20473	The Constant Company, LLC	✔	✔
	AS8298	IPng Networks GmbH	✘	✔
	AS138997	Eons Data Communications Limited	✘	✔
	AS400719	RJN Services	✘	✔
	AS49544	i3D.net B.V	✘	✔
	AS10111	Zeofast Network	✘	✔
	AS42615	June Slater	✘	✔
	AS199518	Gregory Shapiro	✘	✔
	AS53616	Asymptote Network LLC	✘	✔
	AS395915	Edge Network Services LLC	✘	✔
	AS60011	Mythic Beasts Ltd	✘	✔
	AS53597	Hoyos Consulting LLC	✘	✔
	AS2734	CoreSite	✘	✔
	AS33548	Unwired Broadband, LLC	✘	✔
	AS22296	Vorsk LLC	✘	✔
	AS23428	ServerForge LLC	✘	✔
	AS210000	TwentyWAN MB	✘	✔
	AS400566	Sergio Zygmunt	✘	✔
	AS58057	Securebit AG	✘	✔
	AS6140	Two P	✘	✔
	AS6424	EDGOO NETWORKS	✘	✔
	AS137182	Blue Wireless PTE LTD	✘	✔
	AS35008	Kerfuffle, LLC	✘	✔
	AS62809	Volt Broadband	✘	✔
	AS21641	VIRTUASYS America, Inc.	✘	✔

ASHandle:       AS27318
OrgID:          ISC-94
ASName:         ISC-F-AS
ASNumber:       27318 - 27322
RegDate:        2003-02-12
Updated:        2012-02-24
Source:         ARIN



OrgID:          ISC-94
OrgName:        Internet Systems Consortium, Inc.
CanAllocate:    
Street:         PO Box 360
City:           Newmarket
State/Prov:     NH
Country:        US
PostalCode:     03857
RegDate:        2004-01-09
Updated:        2024-01-03
OrgAdminHandle: ISCN-ARIN
OrgTechHandle:  BELLI82-ARIN
OrgTechHandle:  ISCN-ARIN
OrgTechHandle:  JSO127-ARIN
OrgTechHandle:  RA15-ARIN
OrgAbuseHandle: ISCAT-ARIN
OrgNOCHandle:   ISCN-ARIN
Source:         ARIN





OrgAdminHandle:       ISCN-ARIN
OrgAdminName:          Internet Systems Consortium NOC
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        BELLI82-ARIN
OrgTechName:          Ray Bellis
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        ISCN-ARIN
OrgTechName:           Internet Systems Consortium NOC
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        JSO127-ARIN
OrgTechName:          Jeffrey Osborn
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        RA15-ARIN
OrgTechName:          Rick Adams
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       ISCAT-ARIN
OrgAbuseName:          Internet Systems Consortium Abuse Team
# Email removed, Log into bgp.tools to see whois emails


OrgNOCHandle:         ISCN-ARIN
OrgNOCName:            Internet Systems Consortium NOC
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2026-03-13T03:26:11Z UTC

---

Member of the following AS-SETs

-	Member	ASN Count
RADB	as-isza	380
RADB	as-hurricane	24528
RIPE	as-transroute-spec	19641
ARIN	as-sfmix-rs	7634
APNIC	as17895:as-ix	14
NTTCOM	as3741:as-isza	380
ARIN	as-ams-ix-ba-rs-v6	16
ARIN	as-ams-ix-ba-rs	17
RADB	as-hurricanev6	20649
RADB	as-isc-oak1	2
ALTDB	as33495:as-members	41769
RADB	as27321:as-set	2