AS Number
AS21547
AS Name
FLASN-21547
Org Name
FirstLight Networks, LLC
Country / Region
United States
Registry

arin

RegDate

2026-02-13

Updated

2026-04-22

AS21547 Looking Glass
IPv4Prefixes

57

IPv6Prefixes

5

IPv4 NUMs

70,912

IPv6 NUMs(/64)

8,589,934,592

CIDR Description IP Num
63.127.192.0/21
IRR Valid
WorldPath Internet Services 2048
64.140.192.0/18
IRR Valid
FirstLight Networks, LLC 16384
64.140.199.0/24
IRR Valid
FirstLight Fiber, Inc. 256
64.140.224.0/24
IRR Valid
FirstLight Fiber, Inc. 256
64.140.224.0/19
IRR InValid
FirstLight Fiber, Inc. 8192
64.140.225.0/24
IRR Valid
FirstLight Fiber, Inc. 256
64.140.234.0/24
IRR Valid
FirstLight Fiber, Inc. 256
64.140.246.0/24
IRR Valid
FirstLight Fiber, Inc. 256
66.186.160.0/19
IRR Valid
FirstLight Networks, LLC 8192
66.186.162.0/24
IRR Valid
FirstLight Fiber, Inc. 256
66.186.163.0/24
IRR Valid
FirstLight Fiber, Inc. 256
66.186.171.0/24
IRR Valid
FirstLight Fiber, Inc. 256
66.186.173.0/24
IRR Valid
FirstLight Fiber, Inc. 256
66.186.176.0/24
IRR Parent Valid
FirstLight Fiber, Inc. 256
66.186.184.0/24
IRR Valid
FirstLight Fiber, Inc. 256
66.186.188.0/24
IRR Valid
FirstLight Fiber, Inc. 256
66.231.192.0/24
IRR Valid
RedZone Wireless 256
66.231.192.0/19
IRR InValid
FirstLight Networks, LLC 8192
66.231.207.0/24
IRR InValid
Oxford Networks 256
66.231.208.0/24
IRR Valid
First Light Fiber 256
66.231.214.0/24
IRR Valid
First Light Fiber 256
66.231.215.0/24
IRR Valid
First Light Fiber 256
66.231.217.0/24
IRR Valid
First Light Fiber 256
66.231.219.0/24
IRR Valid
First Light Fiber 256
66.231.220.0/22
IRR Valid
First Light Fiber 1024
69.49.128.0/24
IRR Valid
First Light Fiber 256
69.49.128.0/19
IRR InValid
FirstLight Networks, LLC 8192
69.49.129.0/24
IRR Valid
First Light Fiber 256
69.49.133.0/24
IRR Valid
Auto Europe 256
69.49.140.0/23
IRR Parent Valid
First Light Fiber 512
69.49.144.0/24
IRR Valid
First Light Fiber 256
69.49.146.0/24
IRR Valid
Unitel Inc 256
69.49.148.0/24
IRR Valid
First Light Fiber 256
69.49.153.0/24
IRR Valid
First Light Fiber 256
69.168.0.0/20
IRR Valid
FirstLight Networks, LLC 4096
72.12.64.0/19
IRR InValid
FirstLight Networks, LLC 8192
72.12.75.0/24
IRR Valid
MEMIC 256
72.12.76.0/23
IRR Valid
FirstLight Fiber, Inc. 512
72.12.78.0/24
IRR Valid
FirstLight Fiber, Inc. 256
72.12.79.0/24
IRR Valid
FirstLight Fiber, Inc. 256
72.12.80.0/24
IRR Valid
FirstLight Fiber, Inc. 256
72.12.84.0/24
IRR Valid
FirstLight Fiber, Inc. 256
72.12.87.0/24
IRR Valid
FirstLight Fiber, Inc. 256
72.12.91.0/24
IRR Valid
FirstLight Fiber, Inc. 256
72.12.92.0/24
IRR Valid
FirstLight Fiber, Inc. 256
72.12.94.0/23
IRR Valid
FirstLight Fiber, Inc. 512
72.55.224.0/19
IRR Valid
FirstLight Networks, LLC 8192
72.55.247.0/24
IRR Valid
FirstLight Fiber, Inc. 256
72.55.248.0/23
IRR Valid
FirstLight Fiber, Inc. 512
72.55.254.0/23
IRR Valid
FirstLight Fiber, Inc. 512
74.220.224.0/20
IRR Valid
FirstLight Networks, LLC 4096
74.220.236.0/24
IRR Valid
First Light Fiber 256
140.165.50.0/24
Teledyne Brown Engineering 256
198.212.225.0/24
IRR Valid
Concord Hospital 256
198.212.226.0/23
IRR InValid
Concord Hospital 512
198.212.230.0/24
IRR Valid
Concord Hospital 256
208.0.176.0/21
IRR Valid
Sprint 2048
CIDR Description IP NUMs(prefix /64)
2001:4940::/32
IRR Valid
FirstLight Networks, LLC 4294967296
2001:4940:2001::/48
IRR Valid
FirstLight Networks, LLC 65536
2001:4940:2006::/48
IRR Valid
FirstLight Networks, LLC 65536
2001:4940:2007::/48
IRR Valid
FirstLight Networks, LLC 65536
2604:3f00::/32
IRR Valid
FirstLight Networks, LLC 4294967296
AS Description Country / Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS13536 FLASN-13536 - FirstLight Networks, LLC, US United States 334,080 12,885,164,032 IPv4 IPv4 IPv6 IPv6
AS Description Country / Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS36501 DELORME-PUBLISHING - GARMIN INTERNATIONAL INC., US United States 256 0 IPv4 IPv4
AS36787 WMTW-TV-PORTLAND - Hearst-Argyle Television, Inc., US United States 512 0 IPv4 IPv4
AS36823 MPHC - Martin's Point HealthCare, US United States 1,024 0 IPv4 IPv4
AS393830 MAINE-MUNICIPAL-ASSOCIATION - Maine Municipal Association, US United States 256 0 IPv4 IPv4
AS395342 EXETERHOSPITAL - Exeter Hospital, US United States 256 0 IPv4 IPv4
ASNumber:       21547
ASName:         FLASN-21547
ASHandle:       AS21547
RegDate:        2001-05-21
Updated:        2026-04-22
Ref:            https://rdap.arin.net/registry/autnum/21547

OrgID:          FNL-76
OrgName:        FirstLight Networks, LLC
CanAllocate:    
Street:         12 Metro Park Road
City:           Albany
State/Prov:     NY
Country:        US
PostalCode:     12205
RegDate:        2026-02-13
Updated:        2026-04-22
OrgTechHandle   IA93-ARIN
OrgAbuseHandle  ABUSE719-ARIN
OrgNOCHandle    NOC1665-ARIN
OrgDNSHandle    HDP11-ARIN
OrgAdminHandle  IA93-ARIN
Source:         ARIN

OrgAdminHandleHandle:  IA93-ARIN
OrgAdminHandleName:    IP Admin, 
OrgAdminHandlePhone:   +1-518-694-8790
OrgAdminHandleEmail:   [email protected]
OrgAdminHandleRef:     https://rdap.arin.net/registry/entity/IA93-ARIN

OrgTechHandleHandle:  IA93-ARIN
OrgTechHandleName:    IP Admin, 
OrgTechHandlePhone:   +1-518-694-8790
OrgTechHandleEmail:   [email protected]
OrgTechHandleRef:     https://rdap.arin.net/registry/entity/IA93-ARIN

OrgAbuseHandleHandle:  ABUSE719-ARIN
OrgAbuseHandleName:    Abuse, 
OrgAbuseHandlePhone:   +1-518-694-8790
OrgAbuseHandleEmail:   [email protected]
OrgAbuseHandleRef:     https://rdap.arin.net/registry/entity/ABUSE719-ARIN

OrgNOCHandleHandle:  NOC1665-ARIN
OrgNOCHandleName:    NOC, 
OrgNOCHandlePhone:   +1-518-694-8790
OrgNOCHandleEmail:   [email protected]
OrgNOCHandleRef:     https://rdap.arin.net/registry/entity/NOC1665-ARIN

OrgDNSHandleHandle:  HDP11-ARIN
OrgDNSHandleName:    Hostmaster, the DNS people, 
OrgDNSHandlePhone:   +1-518-694-8790
OrgDNSHandleEmail:   [email protected]
OrgDNSHandleRef:     https://rdap.arin.net/registry/entity/HDP11-ARIN