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	Prefix	Description
	204.106.16.0/24	Supernus Pharmaceuticals, Inc.

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS3356	Lumen (Level 3)	✔	✘
	AS46887	Zayo Bandwidth	✔	✘

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Peers

	ASN	Description	IPv4	IPv6
	AS3356	Lumen (Level 3)	✔	✘
	AS46887	Zayo Bandwidth	✔	✘

ASHandle:       AS397040
OrgID:          SP-818
ASName:         SUPN-INT
ASNumber:       397040
RegDate:        2018-09-06
Updated:        2022-06-17
TechHandle:     ITADM249-ARIN
AbuseHandle:    ITADM249-ARIN
NOCHandle:      ITADM249-ARIN
Source:         ARIN



OrgID:          SP-818
OrgName:        Supernus Pharmaceuticals, Inc.
CanAllocate:    
Street:         9715 Key West Avenue
City:           Rockville
State/Prov:     MD
Country:        US
PostalCode:     20850
RegDate:        2017-10-23
Updated:        2022-06-17
OrgAdminHandle: ITADM249-ARIN
OrgTechHandle:  ITADM249-ARIN
OrgAbuseHandle: ITADM249-ARIN
OrgNOCHandle:   ITADM249-ARIN
Source:         ARIN





OrgAdminHandle:       ITADM249-ARIN
OrgAdminName:          IT Admin
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        ITADM249-ARIN
OrgTechName:           IT Admin
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       ITADM249-ARIN
OrgAbuseName:          IT Admin
# Email removed, Log into bgp.tools to see whois emails


OrgNOCHandle:         ITADM249-ARIN
OrgNOCName:            IT Admin
# Email removed, Log into bgp.tools to see whois emails


TechHandle:           ITADM249-ARIN
TechName:              IT Admin
# Email removed, Log into bgp.tools to see whois emails


AbuseHandle:          ITADM249-ARIN
AbuseName:             IT Admin
# Email removed, Log into bgp.tools to see whois emails


NOCHandle:            ITADM249-ARIN
NOCName:               IT Admin
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2026-06-14T03:27:38Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
RADB	as-ccf	1539
LEVEL3	as-lumen-customers-asns	10695
RADB	as-ccf-test	1461