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	Prefix	Description
	128.244.0.0/16	Johns Hopkins University Applied Physics Laboratory
	204.9.128.0/24	Johns Hopkins University Applied Physics Laboratory
	204.9.130.0/24	Johns Hopkins University Applied Physics Laboratory

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS6939	Hurricane Electric LLC	✔	✘
	AS3356	Lumen (Level 3)	✔	✘

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Peers

	ASN	Description	IPv4	IPv6
	AS6939	Hurricane Electric LLC	✔	✘
	AS3356	Lumen (Level 3)	✔	✘
	AS5405	Inter.link GmbH	✔	✘
	AS137409	GSL Networks Pty LTD	✔	✘
	AS5723	Johns Hopkins University	✔	✘
	AS6204	INTERKVM HOST SRL	✔	✘
	AS835	GoCodeIT Inc	✔	✘
	AS7195	EdgeUno	✔	✘
	AS13786	Seaborn (Seabras USA, LLC)	✔	✘
	AS52320	V.tal (GlobeNet)	✔	✘
	AS35280	F5 Networks SARL	✔	✘
	AS37468	Angola Cables	✔	✘
	AS4826	Vocus Connect International Backbone	✔	✘
	AS49544	i3D.net B.V	✔	✘
	AS24482	SG.GS	✔	✘
	AS399728	P Foundation	✔	✘
	AS21559	OSNET	✔	✘
	AS1828	Unitas Global	✔	✘
	AS18678	INTERNEXA S.A. E.S.P	✔	✘
	AS45701	PT Internet Madju Abad Milenindo	✔	✘
	AS60171	AFR-IX TELECOM S.A.	✔	✘
	AS62642	Bigleaf Networks, Inc.	✔	✘
	AS32133	Ting Fiber Inc.	✔	✘
	AS400940	Railway	✔	✘
	AS36236	NetActuate, Inc	✔	✘
	AS398465	Rackdog LLC	✔	✘
	AS3223	Voxility LLP	✔	✘
	AS293	ESnet	✔	✘
	AS3737	PenTeleData Inc.	✔	✘
	AS62887	WhiteSky Communications, LLC.	✔	✘
	AS28283	Adyl Telecom	✔	✘
	AS40217	DACS-NX	✔	✘
	AS4455	IX Reach Ltd	✔	✘

ASHandle:       AS77
OrgID:          JHUAPL
ASName:         JHUAPL-AS
ASNumber:       77
RegDate:        1986-05-05
Updated:        2012-02-24
Source:         ARIN



OrgID:          JHUAPL
OrgName:        Johns Hopkins University Applied Physics Laboratory
CanAllocate:    
Street:         11100 Johns Hopkins Road
City:           Laurel
State/Prov:     MD
Country:        US
PostalCode:     20723
RegDate:        2003-07-15
Updated:        2011-09-24
OrgAdminHandle: ZJ20-ARIN
OrgTechHandle:  ZJ20-ARIN
OrgAbuseHandle: ZJ20-ARIN
Source:         ARIN





OrgAdminHandle:       ZJ20-ARIN
OrgAdminName:          Network Operations Center
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        ZJ20-ARIN
OrgTechName:           Network Operations Center
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       ZJ20-ARIN
OrgAbuseName:          Network Operations Center
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2025-12-24T03:30:50Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
RADB	as-hurricane	24736
RADB	as-comcast-edia	2752
RADB	as198949:as-sd	3765
LEVEL3	as-as209-cust	1818
LEVEL3	as-lumen-customers-asns	10695
RIPE	as-transroute-spec	19683
ARIN	as-zenedge	2306
ARIN	as5723:as-5723-all	2
ARIN	as77:as-all	1