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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
	170.171.0.0/21	Random House, Inc.
	170.171.0.0/20	Random House, Inc.
	170.171.8.0/22	Random House, Inc.
	170.171.14.0/24	Random House, Inc.
	170.171.16.0/23	Random House, Inc.
	170.171.16.0/20	Random House, Inc.
	170.171.32.0/20	Random House, Inc.
	170.171.32.0/23	Random House, Inc.
	170.171.50.0/24	Random House, Inc.
	170.171.64.0/20	Random House, Inc.
	170.171.192.0/24	Random House, Inc.
	170.171.208.0/20	Random House, Inc.
	170.171.224.0/23	Random House, Inc.
	170.171.224.0/20	Random House, Inc.
	170.171.236.0/22	Random House, Inc.
	170.171.240.0/23	Random House, Inc.
	170.171.240.0/20	Random House, Inc.
	170.171.252.0/23	Random House, Inc.

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS46887	Crown Castle Fiber LLC	✔	✘
	AS33657	Comcast Cable Communications, LLC	✔	✘

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Peers

	ASN	Description	IPv4	IPv6
	AS46887	Crown Castle Fiber LLC	✔	✘
	AS33657	Comcast Cable Communications, LLC	✔	✘

ASHandle:       AS11790
OrgID:          RANDOM-4
ASName:         RANDOMHOUSE
ASNumber:       11790
RegDate:        1998-12-18
Updated:        2012-02-24
TechHandle:     AD3-ORG-ARIN
Source:         ARIN



OrgID:          RANDOM-4
OrgName:        Random House, Inc.
CanAllocate:    
Street:         1745 Broadway
City:           New York
State/Prov:     NY
Country:        US
PostalCode:     10019
RegDate:        1993-11-18
Updated:        2011-09-24
OrgAdminHandle: AD3-ORG-ARIN
OrgTechHandle:  AD3-ORG-ARIN
OrgAbuseHandle: AD3-ORG-ARIN
Source:         ARIN





OrgAdminHandle:       AD3-ORG-ARIN
OrgAdminName:          Domain Admin
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        AD3-ORG-ARIN
OrgTechName:           Domain Admin
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       AD3-ORG-ARIN
OrgAbuseName:          Domain Admin
# Email removed, Log into bgp.tools to see whois emails


TechHandle:           AD3-ORG-ARIN
TechName:              Domain Admin
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2025-12-26T03:34:35Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
RADB	as-ccf	1492
LEVEL3	as-level3-origins-na	0
LEVEL3	as-level3-customers-na	0
RIPE	as35280:as-defense	505
RIPE	as35280:as-f5	6960
RADB	as-defense	495
RADB	as-ccf-test	1461
RIPE	as-f5	6960
RADB	as-comcast-edia	2752