AS3356 LEVEL3 - Level 3 Parent, LLC

Everything the routing table and the registries say about AS3356: who holds it, which registry issued it, and which address blocks it advertises.

Transit and backboneAS3356

955 IPv4 and 137 IPv6 prefixes announced.

Registry facts

Refreshed daily

AS number: AS3356
Holder: LEVEL3 - Level 3 Parent, LLC
Country: US
Regional registry: ARIN — American Registry for Internet Numbers
Registry block: Not published
Announced today: Yes
IPv4 prefixes: 955
IPv6 prefixes: 137
Observed at: 2026-09-05T16:00:00

Data: RIPEstat. Prefix and holder data comes from the RIPEstat Data API and is cached for 24 hours. The regional registry is derived from the IANA AS number allocation table. Authoritative registry records are served by ARIN RDAP.

Announced prefixes

955 IPv4 · 137 IPv6

100 IPv4 shown
100 IPv6 shown

4.0.0.0/9
4.55.0.0/16
5.252.72.0/24
8.0.0.0/9
8.0.0.0/12
8.6.180.0/24
8.11.231.0/24
8.15.209.0/24
8.16.0.0/12
8.28.160.0/22
8.29.103.0/24
8.32.0.0/12
8.44.210.0/24
8.45.136.0/24
8.48.0.0/12
8.51.0.0/18
8.64.0.0/12
8.192.0.0/12
8.224.0.0/14
8.236.0.0/15
8.238.0.0/15
8.240.0.0/12
8.240.220.0/24
8.241.98.0/24
8.241.141.0/24
8.241.142.0/24
8.241.144.0/24
8.241.174.0/24
8.241.175.0/24
8.241.176.0/24
8.241.177.0/24
8.241.178.0/24
8.242.0.0/17
8.242.0.0/19
8.242.32.0/19
8.242.68.0/22
8.242.68.0/23
8.242.71.0/24
8.242.72.0/21
8.242.92.0/22
8.242.245.0/24
8.242.246.0/24
8.243.0.0/19
8.243.32.0/19
8.243.64.0/19
8.243.96.0/19
8.243.128.0/20
8.243.144.0/20
8.243.160.0/20
8.243.176.0/20
8.243.180.0/24
8.243.192.0/20
8.243.207.0/24
8.243.208.0/20
8.243.224.0/20
8.243.240.0/21
8.244.0.0/15
8.245.7.0/24
8.247.53.0/24
8.247.54.0/24
8.253.180.0/24
8.253.181.0/24
8.253.182.0/24
8.253.218.0/24
8.253.224.0/24
8.253.250.0/24
8.254.168.0/24
8.255.0.0/16
8.255.192.0/24
8.255.193.0/24
8.255.194.0/24
23.132.196.0/24
23.148.224.0/24
23.230.23.0/24
23.230.39.0/24
23.230.98.0/24
23.230.119.0/24
23.230.152.0/24
23.230.180.0/24
23.230.210.0/24
23.230.214.0/24
24.56.96.0/20
24.75.0.0/18
24.75.20.0/24
24.75.21.0/24
24.75.24.0/23
24.75.44.0/22
24.75.64.0/19
24.75.128.0/20
24.75.135.0/24
24.75.141.0/24
38.84.6.0/23
38.159.181.0/24
45.39.235.0/24
45.39.245.0/24
45.39.246.0/24
45.39.251.0/24
45.89.248.0/24
45.89.255.0/24
45.133.169.0/24
2001:13b0:8013::/48
2001:13b0:8015::/48
2001:13b0:8021::/48
2001:13b0:8029::/48
2001:13b0:a031::/48
2001:13b0:a301::/48
2001:13b0:b900::/48
2001:13b0:c000::/48
2001:13b2::/31
2001:13b2:1::/48
2001:13b2:8001::/48
2001:13b2:8002::/48
2001:13b2:8006::/48
2001:13b2:8007::/48
2001:13b2:800a::/48
2001:13b2:800b::/48
2001:13b2:800c::/48
2001:13b2:8011::/48
2001:13b2:8012::/48
2001:13b2:8014::/48
2001:13b2:8018::/48
2001:13b2:8019::/48
2001:13b2:801a::/48
2001:13b2:801c::/48
2001:13b2:801e::/48
2001:13b2:8041::/48
2001:13b2:8044::/48
2001:13b2:8055::/48
2001:13b2:9002::/48
2001:13b2:9003::/48
2001:13b2:9006::/48
2001:13b2:9009::/48
2001:13b2:9018::/48
2001:13b2:9019::/48
2001:13b2:9101::/48
2001:13b2:b000::/48
2001:13b2:b001::/48
2001:13b2:b801::/48
2001:13b2:ba01::/48
2001:13b2:ba10::/48
2001:13b2:bc00::/48
2001:13b2:bc01::/48
2001:13b2:bc09::/48
2001:13b2:bc0a::/48
2001:13b2:bc0b::/48
2001:13b2:bc0d::/48
2001:13b2:bc0e::/48
2001:13b2:bc0f::/48
2001:13b2:bc10::/48
2001:13b2:bc11::/48
2001:13b2:bc12::/48
2001:13b2:bc13::/48
2001:13b2:bc15::/48
2001:13b2:bc16::/48
2001:13b2:bc17::/48
2001:13b2:bc18::/48
2001:13b2:bc19::/48
2001:13b2:bc1a::/48
2001:13b2:bc1b::/48
2001:13b2:bc1d::/48
2001:13b2:bc1e::/48
2001:13b2:be00::/48
2001:13b2:be01::/48
2001:13b2:be03::/48
2001:13b2:be04::/48
2001:13b2:be05::/48
2001:13b2:be06::/48
2001:13b2:be08::/48
2001:13b2:be09::/48
2001:13b3:1::/48
2001:13b3:3::/48
2001:13b3:8002::/48
2001:13b3:9001::/48
2001:13b4::/32
2001:13b4:4004::/48
2001:13b4:4005::/48
2001:13b4:4007::/48
2001:13b4:4008::/48
2001:13b4:400b::/48
2001:13b4:8002::/48
2001:1900::/32
2001:428:3816::/48
2001:428:5805::/48
2001:428:6400::/48
2001:450:2015::/48
2001:4c08::/32
2401:f6e0::/32
2602:2f4::/44
2606:840::/32
2620:11b:e000::/40
2620:11b:e002::/48
2620:123:d001::/48
2620:12c:3000::/44
2620:130:800a::/48
2620:130:800b::/48
2620:13d:2060::/48
2620:13d:2061::/48
2620:13d:2062::/48
2620:13d:2063::/48
2620:13d:d01c::/48

A prefix here is a block this AS was seen originating in BGP, not a block it is guaranteed to own. Announcement and allocation are different facts, and they disagree more often than people expect.

Registry record

arin

Field	Value
ASNumber	3356
ASName	LEVEL3
ASHandle	3356
RegDate	2000-03-10
Ref	https://rdap.arin.net/registry/autnum/3356
source	ARIN
OrgAbuseHandle	LAC56-ARIN
OrgAbuseName	L3 Abuse Contact
OrgAbusePhone	+1-877-453-8353
OrgAbuseEmail	abuse@level3.com
OrgAbuseRef	https://rdap.arin.net/registry/entity/LAC56-ARIN
source	ARIN
OrgName	Level 3 Parent, LLC
OrgId	LPL-141
Address	100 CenturyLink Drive
City	Monroe
StateProv	LA
PostalCode	71203
Country	US
RegDate	2018-02-06
Comment	USAGE OF IP SPACE MUST COMPLY WITH OUR ACCEPTABLE USE POLICY:
Comment	https://www.lumen.com/en-us/about/legal/acceptable-use-policy.html
Comment	ADDRESSES COVERED BY THIS ORG-ID ARE NON-PORTABLE ANY ISP ANNOUNCING OR TRANSITING PORTIONS WITHIN OUR RANGES SHOULD NOT RELY ON PRESENTED LOA'S OR OLD WHOIS UNLESS THOSE RANGES ARE ALSO ACTIVELY DIRECTLY ANNOUNCED TO A LUMEN ASN. WITH ALL LOA'S THESE CONDITIONS APPLY:
Comment	1. You are permitted to route the Lumen IP prefixes listed via Public BGP to your alternate ISP from the designated ASN. Any other ASN originating the prefix listed is forbidden.

AS3356 LEVEL3 - Level 3 Parent, LLC

Registry facts

Announced prefixes

Registry record

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