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	Prefix	Description
	38.108.252.0/24	Rosenberg & Estis PC

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS6079	RCN	✔	✘
	AS174	Cogent Communications, LLC	✔	✘

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Peers

	ASN	Description	IPv4	IPv6
	AS6079	RCN	✔	✘
	AS174	Cogent Communications, LLC	✔	✘

ASHandle:       AS53516
OrgID:          ROSEN-41
ASName:         ROSENBERG-AND-ESTIS
ASNumber:       53516
RegDate:        2010-05-26
Updated:        2012-03-20
Source:         ARIN



OrgID:          ROSEN-41
OrgName:        Rosenberg & Estis P.C.
CanAllocate:    
Street:         733 3rd Ave.
City:           New York
State/Prov:     NY
Country:        US
PostalCode:     10017
RegDate:        2010-01-25
Updated:        2019-07-18
OrgAdminHandle: KOSTA9-ARIN
OrgTechHandle:  KOSTA9-ARIN
OrgAbuseHandle: KOSTA9-ARIN
Source:         ARIN





OrgAdminHandle:       KOSTA9-ARIN
OrgAdminName:         Tasos Kostalos
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        KOSTA9-ARIN
OrgTechName:          Tasos Kostalos
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       KOSTA9-ARIN
OrgAbuseName:         Tasos Kostalos
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2025-12-24T03:27:58Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
RADB	as-rcn-customer	2136