Home ASN LookupAS20135

AS20135 MTL-19 - Millennium Telcom LLC

🇺🇸

ARINassigned

Announced Prefixes (BGP)

47total

44 IPv43 IPv6

IPv4 Addresses

Allocated (RIR)21,504

Announced (BGP)69,120

IPv6 Addresses

Allocated (RIR)7.9×10²⁸

Announced (BGP)1.4×10²⁸

Prefix Limit (IPv4)

100

Prefix Limit (IPv6)

Country

🇺🇸 US

RIR

ARIN

Status

assigned

Allocated

2001-03-29

Announced Prefixes

(BGP)47

Prefix	RPKI	IRR	Last Seen
38.3.16.0/20	No ROA	Other IRR	2026-10-11
38.13.96.0/19	No ROA	Other IRR	2026-10-11
38.48.32.0/24	No ROA	-	2026-10-11
38.48.33.0/24	No ROA	-	2026-10-11
38.48.34.0/23	No ROA	-	2026-10-11
38.48.36.0/22	No ROA	-	2026-10-11
38.48.40.0/22	No ROA	-	2026-10-11
38.48.44.0/23	No ROA	-	2026-10-11
38.48.46.0/23	No ROA	-	2026-10-11
38.48.48.0/22	No ROA	-	2026-10-11

1-10 of 47

1 / 5

Allocated Prefixes

(RIR)4

Prefix	Country	RIR	Status
66.182.192.0/18	🇺🇸 US	ARIN	allocated
68.71.64.0/20	🇺🇸 US	ARIN	allocated
199.102.52.0/22	🇺🇸 US	ARIN	allocated
2605:3480::/32	🇺🇸 US	ARIN	allocated

All 47 announced prefixes of AS20135 →

BGP Neighbours

(seen in AS paths)

Upstreams (3)

Networks AS20135 hands its own prefixes to: transit providers, or peers at an exchange.

AS174Cogent Communications43
AS6461Zayo Bandwidth3
AS46887Crown Castle Fiber1

Downstreams (1)

Networks whose own prefixes AS20135 passes on: usually its customers.

AS33589City Of Southlake1

ASPA

No ASPA

External Links

ARIN Whois RIPEstat

Learn more

What is an ASN?Autonomous systems, ASN ranges and how they are assigned
RPKI and route origin validationWhat the RPKI badges on the prefix list mean
ASPA explainedWhy AS20135 should publish an ASPA object
IPv4 transfers in the ARIN regionMonthly volume and the latest registry transfers
ASN data in AI agents and SIEMMCP server and API integrations

API

Open

GEThttps://api.ipctl.io/v1/asn/20135

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

curl -s "https://api.ipctl.io/v1/asn/20135" | jq