Home Prefix Lookup173.218.0.0/16

173.218.0.0/16 - Optimum (AS19108)

IPv4ARINannouncedAS19108SUDDENLINK-COMMUNICATIONS - OptimumNo ROA

CIDR

173.218.0.0/16

IP Version

IPv4

Addresses

65.5K

Mask

/16 (255.255.0.0)

Country

🇺🇸 United States

City

Tyler

RIR

ARIN

Status

announced

Allocated

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
173.218.0.0/16	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14

More-Specific Announcements

60 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
173.218.0.0/22	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.4.0/23	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.6.0/24	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.12.0/24	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.14.0/23	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.16.0/24	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.17.0/24	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.18.0/24	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.19.0/24	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.20.0/23	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.24.0/22	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.28.0/22	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.32.0/22	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.36.0/22	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.40.0/22	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.44.0/22	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.48.0/22	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.52.0/22	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.60.0/22	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.64.0/22	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.68.0/22	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.72.0/22	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.76.0/22	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.80.0/22	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.84.0/22	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.88.0/22	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.92.0/22	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.96.0/22	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.100.0/22	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.104.0/22	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.108.0/22	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.112.0/22	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.120.0/22	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.124.0/22	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.128.0/22	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.132.0/22	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.136.0/22	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.140.0/22	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.144.0/22	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.160.0/23	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.162.0/23	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.164.0/22	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.168.0/22	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.172.0/22	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.182.0/24	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.183.0/24	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.188.0/23	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.190.0/24	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.192.0/22	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.196.0/22	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.200.0/22	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.204.0/22	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.208.0/20	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.224.0/20	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.240.0/21	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.249.0/24	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.250.0/24	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.251.0/24	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.252.0/23	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14
173.218.254.0/23	AS19108 SUDDENLINK-COMMUNICATIONS - Optimum	No ROA	-	2026-10-14

Origin ASN

AS19108

SUDDENLINK-COMMUNICATIONS - Optimum

Related Prefixes

More prefixes of AS19108

All prefixes of AS19108 →

Geolocation

Country🇺🇸United StatesUS

RegionTexas

CityTyler

Coordinates32.3513, -95.3011 ↗

Learn more

RPKI and ROAs explainedWhat RPKI valid, invalid and no ROA mean
RPKI validatorCheck ROA coverage for any prefix or ASN
What is BGP?How prefixes are announced and routed
More-specific prefixesGlossary: covering and more-specific routes
IPv4 transfers in the ARIN regionWho bought and sold address space recently

API

Open

GEThttps://api.ipctl.io/v1/prefix/173.218.0.0/16

Returns prefix allocation, BGP routes, and more-specific subnets.

curl -s "https://api.ipctl.io/v1/prefix/173.218.0.0/16" | jq

External Links

RIPEstat