
21547 OXNET - FirstLight Fiber, Inc., US
Adjacency: 5 Upstream: 1 Downstream: 4
Upstream Adjacent AS list
AS13536 TVC-AS1 - FirstLight Fiber, Inc., US
Downstream Adjacent AS list
AS36501 DELORME-PUBLISHING - GARMIN INTERNATIONAL INC., US
AS36787 WMTW-TV-PORTLAND - Hearst-Argyle Television, Inc., US
AS395342 EXETERHOSPITAL - Exeter Hospital, US
AS36823 MPHC - Martin's Point HealthCare, US
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 2500 AS21547 ORG+TRN Originate: 89088 /15.56 Transit: 1280 /21.68 OXNET - FirstLight Fiber, Inc., US
Aggregation Suggestions
Filter: Aggregates, Specifics
This report does not take into account conditions local to each origin AS in terms of policy or traffic engineering requirements, so this is an approximate guideline as to aggregation possibilities.
Rank AS AS Name Current Wthdw Aggte Annce Redctn % 2131 AS21547 OXNET - FirstLight Fiber, Inc., US 54 29 2 27 27 50.00% Prefix AS Path Aggregation Suggestion 63.127.192.0/21 4777 2516 3257 13536 21547 64.140.192.0/18 4608 6939 3770 13536 21547 64.140.199.0/24 4608 6939 3770 13536 21547 - Withdrawn - matching aggregate 64.140.192.0/18 4608 6939 3770 13536 21547 64.140.224.0/19 4608 6939 3770 13536 21547 - Withdrawn - matching aggregate 64.140.192.0/18 4608 6939 3770 13536 21547 64.140.224.0/24 4608 6939 3770 13536 21547 - Withdrawn - matching aggregate 64.140.192.0/18 4608 6939 3770 13536 21547 64.140.225.0/24 4608 6939 3770 13536 21547 - Withdrawn - matching aggregate 64.140.192.0/18 4608 6939 3770 13536 21547 64.140.234.0/24 4608 6939 3770 13536 21547 - Withdrawn - matching aggregate 64.140.192.0/18 4608 6939 3770 13536 21547 64.140.246.0/24 4608 6939 3770 13536 21547 - Withdrawn - matching aggregate 64.140.192.0/18 4608 6939 3770 13536 21547 66.186.160.0/19 4608 6939 3770 13536 21547 66.186.162.0/24 4608 6939 3770 13536 21547 - Withdrawn - matching aggregate 66.186.160.0/19 4608 6939 3770 13536 21547 66.186.163.0/24 4608 6939 3770 13536 21547 - Withdrawn - matching aggregate 66.186.160.0/19 4608 6939 3770 13536 21547 66.186.171.0/24 4608 6939 3770 13536 21547 - Withdrawn - matching aggregate 66.186.160.0/19 4608 6939 3770 13536 21547 66.186.173.0/24 4608 6939 3770 13536 21547 21547 21547 66.186.176.0/24 4608 7575 1299 13536 21547 66.186.184.0/24 4608 6939 3770 13536 21547 - Withdrawn - matching aggregate 66.186.160.0/19 4608 6939 3770 13536 21547 66.186.188.0/24 4608 6939 3770 13536 21547 - Withdrawn - matching aggregate 66.186.160.0/19 4608 6939 3770 13536 21547 66.231.192.0/19 4777 2516 3257 13536 21547 66.231.192.0/24 4608 7575 1299 13536 21547 66.231.207.0/24 4777 6939 3770 13536 21547 66.231.208.0/24 4777 6939 3770 13536 21547 66.231.214.0/23 4777 6939 3770 13536 21547 + Announce - aggregate of 66.231.214.0/24 (4777 6939 3770 13536 21547) and 66.231.215.0/24 (4777 6939 3770 13536 21547) 66.231.214.0/24 4777 6939 3770 13536 21547 - Withdrawn - aggregated with 66.231.215.0/24 (4777 6939 3770 13536 21547) 66.231.215.0/24 4777 6939 3770 13536 21547 - Withdrawn - aggregated with 66.231.214.0/24 (4777 6939 3770 13536 21547) 66.231.217.0/24 4777 6939 3770 13536 21547 66.231.219.0/24 4777 6939 3770 13536 21547 66.231.220.0/22 4777 6939 3770 13536 21547 69.49.128.0/19 4608 6939 3770 13536 21547 69.49.128.0/23 4608 6939 3770 13536 21547 21547 21547 + Announce - aggregate of 69.49.128.0/24 (4608 6939 3770 13536 21547 21547 21547) and 69.49.129.0/24 (4608 6939 3770 13536 21547 21547 21547) 69.49.128.0/24 4608 6939 3770 13536 21547 21547 21547 - Withdrawn - aggregated with 69.49.129.0/24 (4608 6939 3770 13536 21547 21547 21547) 69.49.129.0/24 4608 6939 3770 13536 21547 21547 21547 - Withdrawn - aggregated with 69.49.128.0/24 (4608 6939 3770 13536 21547 21547 21547) 69.49.133.0/24 4777 2516 3257 13536 21547 69.49.140.0/23 4608 7575 1299 13536 21547 69.49.144.0/24 4608 6939 3770 13536 21547 - Withdrawn - matching aggregate 69.49.128.0/19 4608 6939 3770 13536 21547 69.49.146.0/24 4608 7575 1299 13536 21547 69.49.148.0/24 4608 6939 3770 13536 21547 - Withdrawn - matching aggregate 69.49.128.0/19 4608 6939 3770 13536 21547 69.49.153.0/24 4608 6939 3770 13536 21547 - Withdrawn - matching aggregate 69.49.128.0/19 4608 6939 3770 13536 21547 69.168.0.0/20 4777 2516 3257 13536 21547 72.12.64.0/19 4608 6939 3770 13536 21547 72.12.75.0/24 4608 7575 1299 13536 21547 72.12.76.0/23 4608 6939 3770 13536 21547 - Withdrawn - matching aggregate 72.12.64.0/19 4608 6939 3770 13536 21547 72.12.78.0/24 4608 6939 3770 13536 21547 - Withdrawn - matching aggregate 72.12.64.0/19 4608 6939 3770 13536 21547 72.12.79.0/24 4608 6939 3770 13536 21547 - Withdrawn - matching aggregate 72.12.64.0/19 4608 6939 3770 13536 21547 72.12.80.0/24 4608 6939 3770 13536 21547 - Withdrawn - matching aggregate 72.12.64.0/19 4608 6939 3770 13536 21547 72.12.84.0/24 4608 6939 3770 13536 21547 - Withdrawn - matching aggregate 72.12.64.0/19 4608 6939 3770 13536 21547 72.12.87.0/24 4608 6939 3770 13536 21547 - Withdrawn - matching aggregate 72.12.64.0/19 4608 6939 3770 13536 21547 72.12.91.0/24 4608 6939 3770 13536 21547 - Withdrawn - matching aggregate 72.12.64.0/19 4608 6939 3770 13536 21547 72.12.92.0/24 4608 6939 3770 13536 21547 - Withdrawn - matching aggregate 72.12.64.0/19 4608 6939 3770 13536 21547 72.12.94.0/23 4608 6939 3770 13536 21547 - Withdrawn - matching aggregate 72.12.64.0/19 4608 6939 3770 13536 21547 72.55.224.0/19 4608 6939 3770 13536 21547 72.55.247.0/24 4608 6939 3770 13536 21547 21547 21547 72.55.248.0/23 4608 6939 3770 13536 21547 - Withdrawn - matching aggregate 72.55.224.0/19 4608 6939 3770 13536 21547 72.55.254.0/23 4608 6939 3770 13536 21547 - Withdrawn - matching aggregate 72.55.224.0/19 4608 6939 3770 13536 21547 74.220.224.0/20 4777 2516 3257 13536 21547 74.220.236.0/24 4777 6939 3770 13536 21547 140.165.50.0/24 4777 2516 3257 13536 21547 198.212.230.0/24 4777 2516 3257 13536 21547
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS21547 46 More Specifics 54 Total Advertisements OXNET - FirstLight Fiber, Inc., US
63.127.192.0/21 63.64.0.0/10
64.140.199.0/24 64.140.192.0/18
64.140.224.0/19 64.140.192.0/18
64.140.224.0/24 64.140.192.0/18
64.140.225.0/24 64.140.192.0/18
64.140.234.0/24 64.140.192.0/18
64.140.246.0/24 64.140.192.0/18
66.186.162.0/24 66.186.160.0/19
66.186.163.0/24 66.186.160.0/19
66.186.171.0/24 66.186.160.0/19
66.186.173.0/24 66.186.160.0/19
66.186.176.0/24 66.186.160.0/19
66.186.184.0/24 66.186.160.0/19
66.186.188.0/24 66.186.160.0/19
66.231.192.0/24 66.231.192.0/19
66.231.207.0/24 66.231.192.0/19
66.231.208.0/24 66.231.192.0/19
66.231.214.0/24 66.231.192.0/19
66.231.215.0/24 66.231.192.0/19
66.231.217.0/24 66.231.192.0/19
66.231.219.0/24 66.231.192.0/19
66.231.220.0/22 66.231.192.0/19
69.49.128.0/24 69.49.128.0/19
69.49.129.0/24 69.49.128.0/19
69.49.133.0/24 69.49.128.0/19
69.49.140.0/23 69.49.128.0/19
69.49.144.0/24 69.49.128.0/19
69.49.146.0/24 69.49.128.0/19
69.49.148.0/24 69.49.128.0/19
69.49.153.0/24 69.49.128.0/19
72.12.75.0/24 72.12.64.0/19
72.12.76.0/23 72.12.64.0/19
72.12.78.0/24 72.12.64.0/19
72.12.79.0/24 72.12.64.0/19
72.12.80.0/24 72.12.64.0/19
72.12.84.0/24 72.12.64.0/19
72.12.87.0/24 72.12.64.0/19
72.12.91.0/24 72.12.64.0/19
72.12.92.0/24 72.12.64.0/19
72.12.94.0/23 72.12.64.0/19
72.55.247.0/24 72.55.224.0/19
72.55.248.0/23 72.55.224.0/19
72.55.254.0/23 72.55.224.0/19
74.220.236.0/24 74.220.224.0/20
140.165.50.0/24 140.165.0.0/16
198.212.230.0/24 198.212.228.0/22
208.0.176.0/21 208.0.0.0/11
208.3.240.0/21 208.0.0.0/11
Prefixes added and withdrawn by this origin AS in the past 7 days.
- 208.0.176.0/21 Withdrawn
- 208.3.240.0/21 Withdrawn
whois: 402603
IANA has recorded AS21547 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS21547\n
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
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# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
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ASNumber: 21547
ASName: FLASN-21547
ASHandle: AS21547
RegDate: 2001-05-21
Updated: 2026-04-22
Ref: https://rdap.arin.net/registry/autnum/21547
OrgName: FirstLight Networks, LLC
OrgId: FNL-76
Address: 12 Metro Park Road
City: Albany
StateProv: NY
PostalCode: 12205
Country: US
RegDate: 2026-02-13
Updated: 2026-04-22
Ref: https://rdap.arin.net/registry/entity/FNL-76
OrgAbuseHandle: ABUSE719-ARIN
OrgAbuseName: Abuse
OrgAbusePhone: +1-518-694-8790
OrgAbuseEmail: ipabuse@firstlight.net
OrgAbuseRef: https://rdap.arin.net/registry/entity/ABUSE719-ARIN
OrgNOCHandle: NOC1665-ARIN
OrgNOCName: NOC
OrgNOCPhone: +1-518-694-8790
OrgNOCEmail: repair@firstlight.net
OrgNOCRef: https://rdap.arin.net/registry/entity/NOC1665-ARIN
OrgDNSHandle: HDP11-ARIN
OrgDNSName: Hostmaster, the DNS people
OrgDNSPhone: +1-518-694-8790
OrgDNSEmail: dnsupdates@firstlight.net
OrgDNSRef: https://rdap.arin.net/registry/entity/HDP11-ARIN
OrgTechHandle: IA93-ARIN
OrgTechName: IP Admin
OrgTechPhone: +1-518-694-8790
OrgTechEmail: ip-admin@firstlight.net
OrgTechRef: https://rdap.arin.net/registry/entity/IA93-ARIN
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#