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	Prefix	Description
	205.222.252.0/22	Montgomery County Government, Maryland
	208.76.112.0/21	Montgomery County Government, Maryland
	208.76.115.0/24	Montgomery County Government, Maryland
	208.76.116.0/24	Montgomery County Government, Maryland

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS174	Cogent Communications, LLC	✔	✘
	AS6939	Hurricane Electric LLC	✔	✘
	AS7784	Atlantech Online, Inc.	✔	✘

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Peers

	ASN	Description	IPv4	IPv6
	AS6939	Hurricane Electric LLC	✔	✘
	AS54439	Montgomery County Government, Maryland	✔	✘
	AS174	Cogent Communications, LLC	✔	✘
	AS7784	Atlantech Online, Inc.	✔	✘

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Downstreams

	ASN	Description	IPv4	IPv6
	AS54439	Montgomery County Government, Maryland	✔	✘
	AS6939	Hurricane Electric LLC	✔	✘

ASHandle:       AS40468
OrgID:          MCGM
ASName:         MONTGOMERYCOUNTYMDGOV
ASNumber:       40468
RegDate:        2007-02-26
Updated:        2022-08-16
TechHandle:     DCH132-ARIN
TechHandle:     RGS11-ARIN
AbuseHandle:    DCH132-ARIN
AbuseHandle:    RGS11-ARIN
NOCHandle:      DCH132-ARIN
NOCHandle:      RGS11-ARIN
Source:         ARIN



OrgID:          MCGM
OrgName:        Montgomery County Government, Maryland
CanAllocate:    
Street:         100 Maryland Ave.
Street:         Suite 300
City:           Rockville
State/Prov:     MD
Country:        US
PostalCode:     20850
RegDate:        2006-10-12
Updated:        2025-10-07
OrgAdminHandle: MDG40-ARIN
OrgTechHandle:  RGS11-ARIN
OrgTechHandle:  RMN9-ARIN
OrgAbuseHandle: RGS11-ARIN
OrgAbuseHandle: WEBST183-ARIN
OrgNOCHandle:   MDG40-ARIN
OrgRoutingHandle:   RGS11-ARIN
OrgDNSHandle:   MDG40-ARIN
OrgDNSHandle:   RGS11-ARIN
Source:         ARIN





OrgAdminHandle:       MDG40-ARIN
OrgAdminName:         Mark Gardner
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        RGS11-ARIN
OrgTechName:          Robert Shields
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        RMN9-ARIN
OrgTechName:          Roderick Nussey
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       RGS11-ARIN
OrgAbuseName:         Robert Shields
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       WEBST183-ARIN
OrgAbuseName:         Joe Webster
# Email removed, Log into bgp.tools to see whois emails


OrgNOCHandle:         MDG40-ARIN
OrgNOCName:           Mark Gardner
# Email removed, Log into bgp.tools to see whois emails


OrgRoutingHandle:     RGS11-ARIN
OrgRoutingName:       Robert Shields
# Email removed, Log into bgp.tools to see whois emails


OrgDNSHandle:         MDG40-ARIN
OrgDNSName:           Mark Gardner
# Email removed, Log into bgp.tools to see whois emails


OrgDNSHandle:         RGS11-ARIN
OrgDNSName:           Robert Shields
# Email removed, Log into bgp.tools to see whois emails


TechHandle:           DCH132-ARIN
TechName:             David Chen
# Email removed, Log into bgp.tools to see whois emails


TechHandle:           RGS11-ARIN
TechName:             Robert Shields
# Email removed, Log into bgp.tools to see whois emails


AbuseHandle:          DCH132-ARIN
AbuseName:            David Chen
# Email removed, Log into bgp.tools to see whois emails


AbuseHandle:          RGS11-ARIN
AbuseName:            Robert Shields
# Email removed, Log into bgp.tools to see whois emails


NOCHandle:            DCH132-ARIN
NOCName:              David Chen
# Email removed, Log into bgp.tools to see whois emails


NOCHandle:            RGS11-ARIN
NOCName:              Robert Shields
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2026-03-13T03:27:27Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
ARIN	as-7784:as-customers	22
ARIN	as40468:as-all	3
RADB	as7784:as-customers	24
RADB	as-hurricane	24528
RADB	as-rcn-customer	2329
RIPE	as-transroute-spec	19641
LEVEL3	as-level3-origins-na	0