HomeASN LookupAS13576

AS13576 SDNW-13576 - SDN Communications

🇺🇸
ARINassignedASPA Published
Announced Prefixes (BGP)
88total
83 IPv45 IPv6
IPv4 Addresses
Allocated (RIR)96,000
Announced (BGP)137,216
IPv6 Addresses
Allocated (RIR)8.4×10²⁸
Announced (BGP)2.4×10²⁹
Prefix Limit (IPv4)
200
Prefix Limit (IPv6)
20
Country
🇺🇸 US
RIR
ARIN
Status
assigned
Allocated
1999-07-08

Routing hygiene

Score 34/100 · Medium risk
RPKI ROA coverage
70.5%
12 prefixes RPKI invalid
IRR route objects
85.2%
12 prefixes registered for another origin
Hijack signals
2
1 announced against others' ROAs, 1 own announced by others
Upstreams
2
diversity 2/100
  • 30% of announced prefixes (26 of 88) have no valid ROA, 12 of them RPKI invalid
  • Routes concentrated on one upstream (99% of routes)
  • Announces 1 prefix that RPKI assigns to another network (possible hijack or misconfiguration)
  • 15% of announced prefixes (13 of 88) have no IRR route object for this ASN

Based on 88 announced prefixes, updated daily (2026-10-23). How the score works · RPKI explained

Announced Prefixes

(BGP)88
|
Prefix
RPKI
IRR
Last Seen
38.50.52.0/22MOAS
No ROA
ARINOther IRR
2026-10-26
38.67.248.0/21MOAS
No ROA
ARINOther IRR
2026-10-26
38.191.156.0/22
No ROA
Other IRR
2026-10-26
64.33.224.0/19
 Valid
ARINOther IRR
2026-10-26
64.33.252.0/24
 Valid
ARIN
2026-10-26
66.115.192.0/18
 Valid
ARINOther IRR
2026-10-26
66.115.198.0/24
 Valid
ARIN
2026-10-26
66.115.201.0/24
 Valid
ARIN
2026-10-26
66.115.221.0/24
 Valid
ARIN
2026-10-26
66.115.223.0/24
 Valid
ARIN
2026-10-26
1-10 of 88
1 / 9

Allocated Prefixes

(RIR)15
Prefix
Country
RIR
Status
64.33.224.0/19🇺🇸 USARINallocated
66.115.192.0/18🇺🇸 USARINallocated
66.128.160.0/19🇺🇸 USARINallocated
66.231.0.0/19🇺🇸 USARINallocated
76.76.12.0/24🇺🇸 USARINallocated
155.103.92.0/24🇺🇸 USARINallocated
162.120.74.0/23🇺🇸 USARINallocated
170.199.220.0/23🇺🇸 USARINallocated
204.80.157.0/24🇺🇸 USARINallocated
208.53.192.0/18🇺🇸 USARINallocated
1-10 of 15
1 / 2

All 88 announced prefixes of AS13576 →

Upstream Providers(7)

ASNName
AS174🇺🇸COGENT-174 - Cogent Communications, LLC
AS1299🇸🇪TWELVE99 Arelion Sweden AB
AS3257🇺🇸GTT-BACKBONE GTT Communications Inc.
AS3356🇺🇸LEVEL3 - Level 3 Parent, LLC
AS6461🇺🇸ZAYO-6461 - Zayo Bandwidth
AS6939🇺🇸HURRICANE - Hurricane Electric LLC
AS393417🇺🇸SDNW-393417 - SDN Communications

Downstream Customers(3)

ASNName
AS14789🇺🇸CLOUDFLARENET - Cloudflare, Inc.
AS393417🇺🇸SDNW-393417 - SDN Communications
AS402159🇺🇸VALLEY FIBERCOM - Valley FiberCom

BGP Neighbours

(seen in AS paths)

Upstreams (2)

Networks AS13576 hands its own prefixes to: transit providers, or peers at an exchange.

  • AS6939Hurricane Electric87
  • AS3257GTT BACKBONE GTT Communications1

Downstreams (39)

Networks whose own prefixes AS13576 passes on: usually its customers.

  • AS15204INTERSTATE TELECOMMUNICATIONS COOPERATIVE52
  • AS6580Golden West Telecommunications Coop42
  • AS14955Northern Valley Communications38
  • AS402159VALLEY FIBERCOM Valley FiberCom24
  • AS63172Venture Communications Cooperative22
  • AS401415Alliance Communications22
  • AS399439Mitchell Telecom16
  • AS20014West River Cooperative Telephone Company15
  • AS18785Santel Communications Cooperative13
  • AS22223MVTV Wireless11
  • AS27539West River Telecommunications Cooperative11
  • AS6312TrioTel Communications10
  • AS30220SWWC Service Cooperatives9
  • AS20300Woodstock Telephone Company7
  • AS17203Beresford Municipal Telephone Company6
  • AS397608Hanson Communications5
  • AS15157NORTHWESTERN CORPORATION3
  • AS17378TierPoint3
  • AS26023Schwan'S Shared Services3
  • AS14789Cloudflare2
  • AS18870Great Western Bank2
  • AS19031CU*Answers2
  • AS26793ICS Advanced Technologies2
  • AS26860SWIFTEL COMMUNICATIONS2
  • AS32598Opzix2
  • AS53309Black Hills Corporation2
  • AS393821Lismore Cooperative Telephone Company2
  • AS395037Sammons Financial Group2
  • AS397745Hanson Communications2
  • AS399036Xigent Solutions2
  • AS14675Plains Commerce Bank1
  • AS23011FreeConferenceCall.Com1
  • AS32231Pathward, N.A1
  • AS46623Fishback Financial Corporation1
  • AS393452Flandreau Santee Sioux Tribe1
  • AS396119AVERA MCKENNAN1
  • AS398112POET1
  • AS398176JDS INDUSTRIES1
  • AS399763Issues Management1

Other adjacent networks (4)

Adjacent to AS13576 in the transit part of AS paths: peers, providers or customers.

  • AS64289Macarne.Com8
  • AS1299TWELVE99 Arelion Sweden AB3
  • AS174Cogent Communications2
  • AS2914NTT America1
ASPA
Published7 upstreams, 3 downstreams
Authorized Upstream Providers
AS174AS1299AS3257AS3356AS6461AS6939AS393417
Expires 2026-10-27
Listed as Upstream Provider by
3 ASNs
View full ASPA details →
External Links
ARIN WhoisRIPEstat

Learn more

API
Open
GEThttps://api.ipctl.io/v1/asn/13576

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/13576" | jq