AS54439 Montgomery County Government, Maryland 🇺🇸 US

Announcing 13 prefixes, seen at the RIS collectors.

IPv4 prefixes

12,800 (50 × /24)

IPv6 prefixes

Upstreams

transit providers observed

Peers

settlement-free adjacencies

Downstreams

transit customers observed

Customer cone

ASes reachable through it

Registry and operator data

AS number: AS54439
Name: Montgomery County Government, Maryland
Organisation: Montgomery County Government, Maryland
Country: 🇺🇸 US
RIR: ARIN
Allocated: 2020-12-31

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

0 valid (0.0%) 0 invalid (0.0%) 13 no ROA (100.0%)

Whois

Fetched from whois.arin.net

ASNumber:       54439
ASName:         MCGM-FIBERNET3
ASHandle:       AS54439
RegDate:        2020-12-31
Updated:        2021-03-08
Ref:            https://rdap.arin.net/registry/autnum/54439

OrgName:        Montgomery County Government, Maryland
OrgId:          MCGM
Address:        100 Maryland Ave.
Address:        Suite 300
City:           Rockville
StateProv:      MD
PostalCode:     20850
Country:        US
RegDate:        2006-10-12
Updated:        2025-10-07
Ref:            https://rdap.arin.net/registry/entity/MCGM

OrgAbuseHandle: WEBST183-ARIN
OrgAbuseName:   Webster, Joe
OrgAbusePhone:  +1-240-268-4926
OrgAbuseEmail:  joseph.webster@montgomerycountymd.gov
OrgAbuseRef:    https://rdap.arin.net/registry/entity/WEBST183-ARIN

OrgRoutingHandle: RGS11-ARIN
OrgRoutingName:   Shields, Robert Gene
OrgRoutingPhone:  +1-703-283-3884
OrgRoutingEmail:  rob.shields@montgomerycountymd.gov
OrgRoutingRef:    https://rdap.arin.net/registry/entity/RGS11-ARIN

OrgTechHandle: RGS11-ARIN
OrgTechName:   Shields, Robert Gene
OrgTechPhone:  +1-703-283-3884
OrgTechEmail:  rob.shields@montgomerycountymd.gov
OrgTechRef:    https://rdap.arin.net/registry/entity/RGS11-ARIN

OrgDNSHandle: MDG40-ARIN
OrgDNSName:   Gardner, Mark Daniel
OrgDNSPhone:  +1-760-586-5477
OrgDNSEmail:  mark.gardner@montgomerycountymd.gov
OrgDNSRef:    https://rdap.arin.net/registry/entity/MDG40-ARIN

OrgDNSHandle: RGS11-ARIN
OrgDNSName:   Shields, Robert Gene
OrgDNSPhone:  +1-703-283-3884
OrgDNSEmail:  rob.shields@montgomerycountymd.gov
OrgDNSRef:    https://rdap.arin.net/registry/entity/RGS11-ARIN

OrgAbuseHandle: RGS11-ARIN
OrgAbuseName:   Shields, Robert Gene
OrgAbusePhone:  +1-703-283-3884
OrgAbuseEmail:  rob.shields@montgomerycountymd.gov
OrgAbuseRef:    https://rdap.arin.net/registry/entity/RGS11-ARIN

OrgNOCHandle: MDG40-ARIN
OrgNOCName:   Gardner, Mark Daniel
OrgNOCPhone:  +1-760-586-5477
OrgNOCEmail:  mark.gardner@montgomerycountymd.gov
OrgNOCRef:    https://rdap.arin.net/registry/entity/MDG40-ARIN

OrgTechHandle: RMN9-ARIN
OrgTechName:   Nussey, Roderick MacIntyre
OrgTechPhone:  +1-727-729-2596
OrgTechEmail:  rod.nussey@montgomerycountymd.gov
OrgTechRef:    https://rdap.arin.net/registry/entity/RMN9-ARIN