Home Prefix Lookup72.20.128.0/19

72.20.128.0/19 - BGP Prefix

IPv4not announcedNo ROA

CIDR

72.20.128.0/19

IP Version

IPv4

Addresses

8.1K

Mask

/19 (255.255.224.0)

Country

🇺🇸 United States

City

Houston (Chinatown)

Status

not announced

Allocated

Announced BGP Routes

0 of 0 routes

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
This prefix is not announced as a whole. Parts of it are announced as more-specific prefixes, see below.

More-Specific Announcements

30 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
72.20.128.0/24	AS22442 HOU-PHONOSCOPE - Phonoscope, Inc.	No ROA	-	2026-10-11
72.20.129.0/24	AS394437 PSLIGHTWAVE - PS Lightwave	Valid	-	2026-10-11
72.20.130.0/23	AS22442 HOU-PHONOSCOPE - Phonoscope, Inc.	No ROA	-	2026-10-11
72.20.132.0/24	AS394437 PSLIGHTWAVE - PS Lightwave	Valid	-	2026-10-11
72.20.133.0/24	AS394437 PSLIGHTWAVE - PS Lightwave	Valid	-	2026-10-11
72.20.134.0/24	AS394437 PSLIGHTWAVE - PS Lightwave	Valid	-	2026-10-11
72.20.135.0/24	AS394437 PSLIGHTWAVE - PS Lightwave	Valid	-	2026-10-11
72.20.136.0/24	AS22442 HOU-PHONOSCOPE - Phonoscope, Inc.	No ROA	-	2026-10-11
72.20.137.0/24	AS394437 PSLIGHTWAVE - PS Lightwave	Valid	-	2026-10-11
72.20.138.0/24	AS394437 PSLIGHTWAVE - PS Lightwave	Valid	-	2026-10-11
72.20.139.0/24	AS22442 HOU-PHONOSCOPE - Phonoscope, Inc.	No ROA	-	2026-10-11
72.20.140.0/24	AS394437 PSLIGHTWAVE - PS Lightwave	Valid	-	2026-10-11
72.20.141.0/24	AS22442 HOU-PHONOSCOPE - Phonoscope, Inc.	No ROA	-	2026-10-11
72.20.142.0/23	AS22442 HOU-PHONOSCOPE - Phonoscope, Inc.	No ROA	-	2026-10-11
72.20.144.0/24	AS394437 PSLIGHTWAVE - PS Lightwave	Valid	-	2026-10-11
72.20.145.0/24	AS22442 HOU-PHONOSCOPE - Phonoscope, Inc.	No ROA	-	2026-10-11
72.20.146.0/24	AS394437 PSLIGHTWAVE - PS Lightwave	Valid	-	2026-10-11
72.20.147.0/24	AS394437 PSLIGHTWAVE - PS Lightwave	Valid	-	2026-10-11
72.20.148.0/23	AS22442 HOU-PHONOSCOPE - Phonoscope, Inc.	No ROA	-	2026-10-11
72.20.148.0/24	AS394936	No ROA	-	2026-10-11
72.20.150.0/24	AS22442 HOU-PHONOSCOPE - Phonoscope, Inc.	No ROA	-	2026-10-11
72.20.151.0/24	AS394437 PSLIGHTWAVE - PS Lightwave	Valid	-	2026-10-11
72.20.152.0/24	AS22362 GLOBALTELLINK-HNSS - Global Tel*link Corporation	Valid	-	2026-10-11
72.20.153.0/24	AS394437 PSLIGHTWAVE - PS Lightwave	Valid	-	2026-10-11
72.20.154.0/24	AS22442 HOU-PHONOSCOPE - Phonoscope, Inc.	No ROA	-	2026-10-11
72.20.155.0/24	AS394437 PSLIGHTWAVE - PS Lightwave	Valid	-	2026-10-11
72.20.156.0/24	AS394437 PSLIGHTWAVE - PS Lightwave	Valid	-	2026-10-11
72.20.157.0/24	AS394437 PSLIGHTWAVE - PS Lightwave	Valid	-	2026-10-11
72.20.158.0/24	AS16970 MIDNET - MIDnet	Valid	-	2026-10-11
72.20.159.0/24	AS394437 PSLIGHTWAVE - PS Lightwave	Valid	-	2026-10-11

More Specific Prefixes

Prefix	AS	Country	Status
72.20.128.0/24	AS22442	🇺🇸US	allocated
72.20.129.0/24	AS394437	🇺🇸US	allocated
72.20.130.0/23	AS22442	🇺🇸US	allocated
72.20.132.0/22	AS394437	🇺🇸US	allocated
72.20.136.0/24	AS22442	🇺🇸US	allocated
72.20.137.0/24	AS394437	🇺🇸US	allocated
72.20.138.0/24	AS394437	🇺🇸US	allocated
72.20.139.0/24	AS22442	🇺🇸US	allocated
72.20.140.0/24	AS394437	🇺🇸US	allocated
72.20.141.0/24	AS22442	🇺🇸US	allocated
72.20.142.0/23	AS22442	🇺🇸US	allocated
72.20.144.0/24	AS394437	🇺🇸US	allocated
72.20.145.0/24	AS22442	🇺🇸US	allocated
72.20.146.0/24	AS394437	🇺🇸US	allocated
72.20.147.0/24	AS394437	🇺🇸US	allocated
72.20.148.0/23	AS22442	🇺🇸US	allocated
72.20.150.0/24	AS22442	🇺🇸US	allocated
72.20.151.0/24	AS394437	🇺🇸US	allocated
72.20.152.0/23	AS394437	🇺🇸US	allocated
72.20.154.0/24	AS22442	🇺🇸US	allocated
72.20.155.0/24	AS394437	🇺🇸US	allocated
72.20.156.0/23	AS394437	🇺🇸US	allocated
72.20.158.0/24	AS394437	🇺🇸US	allocated
72.20.159.0/24	AS394437	🇺🇸US	allocated

Transfer History

Registry transfers of 72.20.128.0/19, blocks inside it, or blocks containing it.

72.20.159.0/24Transfer · 2017-12-12
Phonoscope, Inc.
🇺🇸 US ARIN
→
PS Lightwave
🇺🇸 US ARIN
72.20.151.0/24Transfer · 2017-12-12
Phonoscope, Inc.
🇺🇸 US ARIN
→
PS Lightwave
🇺🇸 US ARIN
72.20.147.0/24Transfer · 2017-12-12
Phonoscope, Inc.
🇺🇸 US ARIN
→
PS Lightwave
🇺🇸 US ARIN
72.20.137.0/24Transfer · 2017-12-12
Phonoscope, Inc.
🇺🇸 US ARIN
→
PS Lightwave
🇺🇸 US ARIN
72.20.158.0/24Transfer · 2017-09-22
Phonoscope, Inc.
🇺🇸 US ARIN
→
PS Lightwave
🇺🇸 US ARIN
72.20.156.0/24Transfer · 2017-09-22
Phonoscope, Inc.
🇺🇸 US ARIN
→
PS Lightwave
🇺🇸 US ARIN
72.20.155.0/24Transfer · 2017-09-22
Phonoscope, Inc.
🇺🇸 US ARIN
→
PS Lightwave
🇺🇸 US ARIN
72.20.153.0/24Transfer · 2017-09-22
Phonoscope, Inc.
🇺🇸 US ARIN
→
PS Lightwave
🇺🇸 US ARIN
72.20.152.0/24Transfer · 2017-09-22
Phonoscope, Inc.
🇺🇸 US ARIN
→
PS Lightwave
🇺🇸 US ARIN
72.20.146.0/24Transfer · 2017-09-22
Phonoscope, Inc.
🇺🇸 US ARIN
→
PS Lightwave
🇺🇸 US ARIN

Date	Resource	From	To	Type
2017-12-12	72.20.159.0/24	Phonoscope, Inc. 🇺🇸 US ARIN	PS Lightwave 🇺🇸 US ARIN	Transfer
2017-12-12	72.20.151.0/24	Phonoscope, Inc. 🇺🇸 US ARIN	PS Lightwave 🇺🇸 US ARIN	Transfer
2017-12-12	72.20.147.0/24	Phonoscope, Inc. 🇺🇸 US ARIN	PS Lightwave 🇺🇸 US ARIN	Transfer
2017-12-12	72.20.137.0/24	Phonoscope, Inc. 🇺🇸 US ARIN	PS Lightwave 🇺🇸 US ARIN	Transfer
2017-09-22	72.20.158.0/24	Phonoscope, Inc. 🇺🇸 US ARIN	PS Lightwave 🇺🇸 US ARIN	Transfer
2017-09-22	72.20.156.0/24	Phonoscope, Inc. 🇺🇸 US ARIN	PS Lightwave 🇺🇸 US ARIN	Transfer
2017-09-22	72.20.155.0/24	Phonoscope, Inc. 🇺🇸 US ARIN	PS Lightwave 🇺🇸 US ARIN	Transfer
2017-09-22	72.20.153.0/24	Phonoscope, Inc. 🇺🇸 US ARIN	PS Lightwave 🇺🇸 US ARIN	Transfer
2017-09-22	72.20.152.0/24	Phonoscope, Inc. 🇺🇸 US ARIN	PS Lightwave 🇺🇸 US ARIN	Transfer
2017-09-22	72.20.146.0/24	Phonoscope, Inc. 🇺🇸 US ARIN	PS Lightwave 🇺🇸 US ARIN	Transfer

View all 20 transfers →

Geolocation

Country🇺🇸United StatesUS

RegionTexas

CityHouston (Chinatown)

Coordinates29.7105, -95.5492 ↗

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 transfer marketTransfers published by all five RIRs

API

Open

GEThttps://api.ipctl.io/v1/prefix/72.20.128.0/19

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

curl -s "https://api.ipctl.io/v1/prefix/72.20.128.0/19" | jq

External Links

RIPEstat