
4581 SOCKET - Socket Holdings Corporation, US
Adjacency: 16 Upstream: 3 Downstream: 13
Upstream Adjacent AS list
AS3356 LEVEL3 - Level 3 Parent, LLC, US
AS174 COGENT-174 - Cogent Communications, LLC, US
AS6939 HURRICANE - Hurricane Electric LLC, US
Downstream Adjacent AS list
AS62723 CARFAX - CARFAX, Inc., US
AS13341 TRANQUILITY - Tranquility Internet Services Inc., US
AS395311 MIDWAYUSA01 - MidwayUSA, US
AS40673 SHELTERCUSTOMER - Shelter Mutual Insurance, US
AS36779 LEARFIELD - Learfield Communications, LLC, US
AS393668 STATEFAIRCC - State Fair Community College, US
AS11929 MFAOIL - MFA Oil Company, US
AS399802 FIBERSMITH-CBLOCK-170-31-11 - The Fibersmith Company, US
AS397479 HUBER-AS-01 - Huber & Associates, Inc., US
AS397092 BAYS-ET-HIGHSPEED - Bays ET highspeed LLC, US
AS55056 CBC-ISPA-CUSTFACING - Central Bancompany, Inc., US
AS46755 COLUMBIA-COLLEGE-MISSOURI - Columbia College, US
AS401718 HAULERS-INSURANCE - Haulers Insurance Company Inc., US
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 2258 AS4581 ORG+TRN Originate: 106240 /15.30 Transit: 5376 /19.61 SOCKET - Socket Holdings Corporation, 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 % 15167 AS4581 SOCKET - Socket Holdings Corporation, US 35 4 2 33 2 5.71% Prefix AS Path Aggregation Suggestion 38.212.0.0/18 4777 6939 4581 38.212.24.0/22 4777 2516 174 4581 38.212.44.0/24 4777 2516 174 4581 38.212.50.0/23 4777 2516 174 4581 38.212.52.0/22 4777 2516 174 4581 38.212.56.0/21 4777 2516 174 4581 38.255.128.0/18 4777 6939 4581 38.255.129.0/24 4777 2497 174 4581 64.85.192.0/19 4777 6939 4581 74.118.14.0/24 4777 6939 4581 154.36.192.0/18 4777 6939 4581 154.36.193.0/24 4777 2516 174 4581 154.36.201.0/24 4777 2516 174 4581 154.36.204.0/24 4777 2516 174 4581 154.36.220.0/24 4777 2516 174 4581 154.36.236.0/23 4777 2516 174 4581 154.36.245.0/24 4777 2516 174 4581 174.34.0.0/19 4777 6939 4581 174.34.22.0/23 4777 2516 174 4581 174.34.32.0/20 4777 6939 4581 174.34.38.0/23 4777 2516 174 4581 174.34.45.0/24 4777 2516 174 4581 192.245.42.0/23 4608 6939 4581 + Announce - aggregate of 192.245.42.0/24 (4608 6939 4581) and 192.245.43.0/24 (4608 6939 4581) 192.245.42.0/24 4608 6939 4581 - Withdrawn - aggregated with 192.245.43.0/24 (4608 6939 4581) 192.245.43.0/24 4608 6939 4581 - Withdrawn - aggregated with 192.245.42.0/24 (4608 6939 4581) 199.47.238.0/23 4777 6939 4581 + Announce - aggregate of 199.47.238.0/24 (4777 6939 4581) and 199.47.239.0/24 (4777 6939 4581) 199.47.238.0/24 4777 6939 4581 - Withdrawn - aggregated with 199.47.239.0/24 (4777 6939 4581) 199.47.239.0/24 4777 6939 4581 - Withdrawn - aggregated with 199.47.238.0/24 (4777 6939 4581) 199.187.160.0/22 4777 6939 4581 199.187.161.0/24 4777 2516 174 4581 199.242.192.0/24 4777 6939 4581 216.106.0.0/18 4777 6939 4581 216.106.35.0/24 4777 2516 174 4581 216.106.39.0/24 4777 2516 174 4581 216.106.51.0/24 4777 2516 174 4581 216.106.64.0/19 4777 6939 4581 216.106.77.0/24 4777 2516 174 4581
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS4581 26 More Specifics 35 Total Advertisements SOCKET - Socket Holdings Corporation, US
38.212.0.0/18 38.0.0.0/8
38.212.24.0/22 38.0.0.0/8
38.212.44.0/24 38.0.0.0/8
38.212.50.0/23 38.0.0.0/8
38.212.52.0/22 38.0.0.0/8
38.212.56.0/21 38.0.0.0/8
38.255.128.0/18 38.0.0.0/8
38.255.129.0/24 38.0.0.0/8
74.118.14.0/24 74.118.8.0/21
154.36.192.0/18 154.36.0.0/16
154.36.193.0/24 154.36.0.0/16
154.36.201.0/24 154.36.0.0/16
154.36.204.0/24 154.36.0.0/16
154.36.220.0/24 154.36.0.0/16
154.36.236.0/23 154.36.0.0/16
154.36.245.0/24 154.36.0.0/16
174.34.22.0/23 174.34.0.0/19
174.34.38.0/23 174.34.32.0/20
174.34.45.0/24 174.34.32.0/20
199.47.238.0/24 199.47.232.0/21
199.47.239.0/24 199.47.232.0/21
199.187.161.0/24 199.187.160.0/22
216.106.35.0/24 216.106.0.0/18
216.106.39.0/24 216.106.0.0/18
216.106.51.0/24 216.106.0.0/18
216.106.77.0/24 216.106.64.0/19
Prefixes added and withdrawn by this origin AS in the past 7 days.
+ 38.255.129.0/24 Announced
+ 154.36.193.0/24 Announced
+ 154.36.201.0/24 Announced
+ 154.36.204.0/24 Announced
+ 154.36.220.0/24 Announced
+ 154.36.245.0/24 Announced
+ 174.34.45.0/24 Announced
+ 216.106.51.0/24 Announced
whois: 402332
IANA has recorded AS4581 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS4581\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: 4581
ASName: SOCKET
ASHandle: AS4581
RegDate: 1995-05-01
Updated: 2019-09-04
Ref: https://rdap.arin.net/registry/autnum/4581
OrgName: Socket Holdings Corporation
OrgId: SOCK
Address: 2703 Clark Lane
City: Columbia
StateProv: MO
PostalCode: 65202
Country: US
RegDate:
Updated: 2025-09-22
Ref: https://rdap.arin.net/registry/entity/SOCK
OrgTechHandle: DNSAD39-ARIN
OrgTechName: DNS Administrator
OrgTechPhone: +1-573-817-0000
OrgTechEmail: dns@socket.net
OrgTechRef: https://rdap.arin.net/registry/entity/DNSAD39-ARIN
OrgAbuseHandle: DNSAD39-ARIN
OrgAbuseName: DNS Administrator
OrgAbusePhone: +1-573-817-0000
OrgAbuseEmail: dns@socket.net
OrgAbuseRef: https://rdap.arin.net/registry/entity/DNSAD39-ARIN
OrgNOCHandle: PINKE44-ARIN
OrgNOCName: Pinkerton, Chris
OrgNOCPhone: +1-573-380-6421
OrgNOCEmail: chris.pinkerton@corp.socket.net
OrgNOCRef: https://rdap.arin.net/registry/entity/PINKE44-ARIN
RNOCHandle: DNSAD39-ARIN
RNOCName: DNS Administrator
RNOCPhone: +1-573-817-0000
RNOCEmail: dns@socket.net
RNOCRef: https://rdap.arin.net/registry/entity/DNSAD39-ARIN
RTechHandle: DNSAD39-ARIN
RTechName: DNS Administrator
RTechPhone: +1-573-817-0000
RTechEmail: dns@socket.net
RTechRef: https://rdap.arin.net/registry/entity/DNSAD39-ARIN
RAbuseHandle: DNSAD39-ARIN
RAbuseName: DNS Administrator
RAbusePhone: +1-573-817-0000
RAbuseEmail: dns@socket.net
RAbuseRef: https://rdap.arin.net/registry/entity/DNSAD39-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.
#