AS19108 Optimum
AS19108 (SUDDENLINK-COMMUNICATIONS) is registered to Optimum in US, through ARIN. It originates 435 prefixes in the global routing table.
408
IPv4 prefixes
27
IPv6 prefixes
2,848,256
IPv4 addresses
5%
RPKI valid
Registration
Who holds AS19108
Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.
AS number
AS19108
Handle
SUDDENLINK-COMMUNICATIONS
Organization
Optimum
Country
US
Registry
ARIN
ASPA
None published
WHOIS recordARIN
# # 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. # ASNumber: 19108 ASName: SUDDENLINK-COMMUNICATIONS ASHandle: AS19108 RegDate: 2000-11-20 Updated: 2012-03-20 Ref: https://rdap.arin.net/registry/autnum/19108 OrgName: Optimum OrgId: SUDDE Address: 311 NNW Loop 323 City: Tyler StateProv: TX PostalCode: 75701 Country: US RegDate: 2006-05-25 Updated: 2025-08-06 Ref: https://rdap.arin.net/registry/entity/SUDDE OrgTechHandle: AUIO-ARIN OrgTechName: Altice USA Internet Operations OrgTechPhone: +1-516-803-2300 OrgTechEmail: hostmaster@cv.net OrgTechRef: https://rdap.arin.net/registry/entity/AUIO-ARIN OrgNOCHandle: NOCSU37-ARIN OrgNOCName: NOC Suddenlink OrgNOCPhone: +1-866-232-5455 OrgNOCEmail: noc@suddenlink.com OrgNOCRef: https://rdap.arin.net/registry/entity/NOCSU37-ARIN OrgAbuseHandle: ABUSE6997-ARIN OrgAbuseName: Abuse Suddenlink OrgAbusePhone: +1-903-266-4800 OrgAbuseEmail: abuse@suddenlink.net OrgAbuseRef: https://rdap.arin.net/registry/entity/ABUSE6997-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. #
Routing
What AS19108 announces
Prefixes originated by AS19108 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).
IPv4 prefixes
408
IPv6 prefixes
27
IPv4 addresses
2,848,256 (11,126 /24s)
RPKI valid
25 5%
RPKI invalid
0
RPKI not found
410
ROAs naming AS19108
27
With an IRR route object
79 18%
Prefixes
Announced prefixes
Each opens its own page: who announces it, the paths our collectors see, its ROAs and route objects.
IPv4 (408)
24.31.17.0/2424.32.0.0/1624.32.0.0/2024.32.24.0/2124.32.32.0/2124.32.130.0/2424.49.194.0/2424.49.200.0/2424.54.114.0/2424.54.116.0/2424.54.117.0/2424.54.118.0/2424.54.119.0/2424.72.175.0/2424.72.186.0/2324.75.113.0/2424.75.123.0/2424.75.124.0/2424.75.126.0/2424.121.0.0/1624.121.0.0/1724.121.83.0/2424.121.88.0/2424.121.128.0/1724.156.0.0/1724.156.0.0/1824.156.15.0/2424.156.34.0/2424.156.64.0/1824.156.96.0/2024.156.112.0/2024.206.128.0/1724.206.202.0/2424.206.216.0/2224.206.224.0/1924.213.120.0/2424.223.86.0/2424.224.36.0/2324.224.44.0/2424.224.55.0/2424.224.56.0/2424.224.58.0/2324.224.60.0/2224.245.68.0/2324.245.72.0/2247.208.0.0/1247.208.0.0/1547.209.64.0/1847.209.80.0/2047.209.128.0/1747.209.192.0/1947.210.0.0/1547.210.0.0/1747.210.128.0/1747.211.144.0/2047.211.192.0/2047.211.208.0/2047.212.0.0/1447.212.0.0/1747.212.96.0/1947.212.192.0/2047.213.0.0/1647.213.112.0/2047.213.182.0/2347.214.0.0/1647.214.28.0/2247.214.32.0/2247.214.36.0/2247.214.40.0/2247.214.44.0/2247.214.48.0/2247.214.128.0/1847.214.192.0/1847.215.32.0/2347.215.68.0/2247.215.96.0/2047.215.128.0/1747.215.128.0/1847.215.192.0/1847.216.0.0/1647.216.0.0/1747.216.128.0/1747.216.144.0/2047.217.0.0/1647.217.128.0/1847.217.192.0/1847.218.0.0/1547.218.0.0/1747.218.8.0/2247.218.12.0/2247.218.16.0/2247.218.20.0/2247.218.128.0/1747.219.0.0/1747.219.128.0/1747.219.176.0/2047.220.0.0/1447.221.0.0/1747.221.128.0/1747.223.0.0/1747.223.128.0/1750.24.0.0/1450.24.0.0/1650.24.0.0/1750.24.0.0/2050.24.24.0/2450.24.96.0/2050.24.128.0/1750.24.192.0/2050.25.0.0/1750.25.0.0/1850.25.96.0/1950.25.128.0/1850.25.192.0/1850.26.0.0/1650.26.0.0/1950.26.0.0/2050.26.32.0/1950.26.96.0/1950.27.0.0/17
Show 288 more
50.27.0.0/1950.27.128.0/1750.27.128.0/1950.27.148.0/2450.27.160.0/1950.27.171.0/2450.27.192.0/1864.72.32.0/1964.72.34.0/2464.72.36.0/2464.72.37.0/2464.72.38.0/2464.72.39.0/2464.72.40.0/2464.72.41.0/2464.72.42.0/2364.72.45.0/2464.72.47.0/2464.72.49.0/2464.72.50.0/2464.72.55.0/2464.72.56.0/2464.72.57.0/2464.72.63.0/2464.139.227.0/2464.139.229.0/2464.139.234.0/2464.139.246.0/2464.234.0.0/2364.234.1.0/2464.234.8.0/2464.234.16.0/2464.234.30.0/2364.234.34.0/2464.234.47.0/2464.234.55.0/2464.234.67.0/2464.234.68.0/2464.234.74.0/2464.234.78.0/2466.76.0.0/1666.76.0.0/1766.76.6.0/2466.76.80.0/2466.76.114.0/2466.76.128.0/1866.76.163.0/2466.76.174.0/2466.76.176.0/2066.76.192.0/2066.76.193.0/2466.76.194.0/2466.76.202.0/2366.76.215.0/2466.76.216.0/2466.76.217.0/2466.76.220.0/2466.76.221.0/2466.76.222.0/2466.76.223.0/2466.76.224.0/2066.76.240.0/2066.205.96.0/1967.21.185.0/2469.59.64.0/2469.59.73.0/2469.59.82.0/2469.59.100.0/2469.59.104.0/2472.47.0.0/1772.47.128.0/1874.192.0.0/1474.192.0.0/1574.192.0.0/1674.192.0.0/1974.192.0.0/2074.192.32.0/2074.192.46.0/2474.192.47.0/2474.192.76.0/2474.193.0.0/1674.194.0.0/1574.194.0.0/1774.194.50.0/2374.194.64.0/2074.194.76.0/2274.194.112.0/2274.194.128.0/1874.194.128.0/1974.194.160.0/2074.194.176.0/2074.194.192.0/1874.195.0.0/1874.195.0.0/2074.195.16.0/2174.195.64.0/1874.195.94.0/2474.195.95.0/2474.195.128.0/1774.195.128.0/1874.195.144.0/2074.195.160.0/1974.195.192.0/1874.196.0.0/1574.196.0.0/1974.196.32.0/1974.196.96.0/1974.196.128.0/1974.196.160.0/1974.196.192.0/1874.197.0.0/1774.197.32.0/2074.197.128.0/1774.197.160.0/1974.197.192.0/1974.197.235.0/2474.197.236.0/2474.197.237.0/2475.108.0.0/1475.108.32.0/1975.108.32.0/2375.108.48.0/2175.108.80.0/2075.108.105.0/2475.108.120.0/2175.108.128.0/1975.108.144.0/2075.108.160.0/2075.108.176.0/2075.108.186.0/2475.108.192.0/1875.108.208.0/2175.108.216.0/2175.108.232.0/2175.108.240.0/2075.108.244.0/2475.109.0.0/1675.109.0.0/1775.109.0.0/1875.109.44.0/2375.109.70.0/2375.109.92.0/2275.109.96.0/2275.109.108.0/2475.109.112.0/2275.109.128.0/1975.109.156.0/2375.109.158.0/2375.109.160.0/1975.109.192.0/1975.109.224.0/1975.109.248.0/2275.110.0.0/1675.110.0.0/1775.110.107.0/2475.110.111.0/2475.110.126.0/2375.110.133.0/2475.110.160.0/1975.110.160.0/2175.110.164.0/2475.110.166.0/2375.110.194.0/2375.110.240.0/2075.111.0.0/1875.111.48.0/2075.111.96.0/2075.111.112.0/2075.111.128.0/1775.111.135.0/2475.111.196.0/22167.160.140.0/22173.80.0.0/15173.80.0.0/16173.80.0.0/17173.80.128.0/17173.80.176.0/20173.81.0.0/16173.81.0.0/17173.81.128.0/17173.81.223.0/24173.216.0.0/15173.216.0.0/16173.216.124.0/22173.216.128.0/22173.216.242.0/24173.216.247.0/24173.216.248.0/24173.217.0.0/16173.217.128.0/20173.218.0.0/16173.218.24.0/22173.218.28.0/22173.218.32.0/22173.218.36.0/22173.218.40.0/22173.218.44.0/22173.218.48.0/22173.218.64.0/22173.218.68.0/22173.218.72.0/22173.218.76.0/22173.218.80.0/22173.218.84.0/22173.218.88.0/22173.218.92.0/22173.218.96.0/22173.218.208.0/20173.218.224.0/20173.218.240.0/21173.218.251.0/24173.219.0.0/17173.219.3.0/24173.219.4.0/24173.219.43.0/24173.219.49.0/24173.219.50.0/24173.219.60.0/24173.219.74.0/24173.219.80.0/20173.219.90.0/24173.219.96.0/21173.219.96.0/24173.219.98.0/24173.219.112.0/21173.219.128.0/18173.219.128.0/21173.219.144.0/23173.219.176.0/20192.101.32.0/24198.163.214.0/24205.201.64.0/18205.201.64.0/24205.201.65.0/24205.201.66.0/24205.201.67.0/24205.201.68.0/24205.201.69.0/24205.201.72.0/24205.201.83.0/24205.201.93.0/24205.201.107.0/24205.201.113.0/24205.201.114.0/23205.201.116.0/24205.201.122.0/24205.201.123.0/24205.201.126.0/24207.192.192.0/18207.192.224.0/20207.192.240.0/20207.254.224.0/20207.254.240.0/23207.254.245.0/24207.254.246.0/24207.254.247.0/24207.254.248.0/24207.254.249.0/24207.254.250.0/24207.254.251.0/24207.254.253.0/24207.254.254.0/24207.254.255.0/24208.91.57.0/24208.180.0.0/16208.180.13.0/24208.180.22.0/24208.180.34.0/24208.180.36.0/22208.180.51.0/24208.180.53.0/24208.180.55.0/24208.180.121.0/24208.180.126.0/24208.180.128.0/19208.180.128.0/24208.180.192.0/19208.180.205.0/24209.33.0.0/17209.33.10.0/24209.33.11.0/24209.33.54.0/24209.207.0.0/18209.207.62.0/23209.209.185.0/24209.209.188.0/24216.134.72.0/21216.134.80.0/20
IPv6 (27)
2600:5400:1000::/362600:5400:2000::/362600:5400:3000::/362600:5400:7000::/362600:5400:8000::/332600:5400:8000::/482600:5400:8001::/482600:5400:8800::/482600:5400:9000::/482600:5400:9001::/482600:5400:9002::/482600:5400:9003::/482600:5400:cd00::/482600:5400:cd01::/482600:5400:cd02::/482600:5400:cd03::/482600:5400:cd04::/482600:5400:ce00::/482600:5400:d101::/482600:5400:e100::/482600:5400:eb00::/482600:5400:eb01::/482600:5401::/442600:5408::/322600:5408::/442600:541e::/442620:121:d000::/44
RPKI valid RPKI invalid no ROA covers it
Neighbors
Who AS19108 is reached through
The AS just before AS19108 in the paths our looking glass collectors hold, for 60 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.
ASPA
Provider authorization
AS19108 publishes no ASPA of its own. 4 ASes name it as a provider in theirs. Check a path.
The 4 ASes that name AS19108 as a provider
IRR
Routing registry objects
From the mirrored IRR databases (RADB, the five RIRs and more). Look it up live.
| Source | as-name | Maintained by |
|---|---|---|
| RADB | SUDDE | MAINT-AS19108 |
Route objects with origin AS19108: LEVEL3 273 · RADB 144 · ARIN 4
as-sets that list AS19108 (16)