[REN-BGP-stats-all] IPv4 R&E Routing Table Report - ESnet (R&E) view
REN Routing Table Report
cscora at frr.nsrc.org
Fri Jul 1 22:20:40 UTC 2022
IPv4 R&E Routing Table Report 22:20 GMT Fri 01 Jul, 2022
IPv4 BGP Table (R&E) as seen at ESnet.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/ESnet/
Analysis Summary
----------------
BGP routing table entries examined: 20011
Prefixes after maximum aggregation (per Origin AS): 11693
Deaggregation factor: 1.71
Unique aggregates announced (without unneeded subnets): 13162
Number of IPv4 prefixes with a valid ROA: 4371
Number of IPv4 prefixes with an invalid ROA: 48
Number of IPv4 prefixes with no ROA: 15592
Total ASes present in the Internet Routing Table: 2965
Prefixes per ASN: 6.75
Origin-only ASes present in the Internet Routing Table: 2558
Origin ASes announcing only one prefix: 1151
Transit ASes present in the Internet Routing Table: 407
Transit-only ASes present in the Internet Routing Table: 68
Paths with bogon ASNs present in the IPv4 Routing Table: 0
Average AS path length visible in the Internet Routing Table: 3.8
Max AS path length visible: 17
Max AS path prepend of ASN ( 53263) 11
Prefixes from unregistered ASNs in the Routing Table: 24
Number of instances of unregistered ASNs: 24
Number of 32-bit ASNs allocated by the RIRs: 39718
Number of 32-bit ASNs visible in the Routing Table: 639
Prefixes from 32-bit ASNs in the Routing Table: 1756
Number of bogon 32-bit ASNs visible in the Routing Table: 0
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 2
Number of addresses announced to Internet: 180594944
Equivalent to 10 /8s, 195 /16s and 169 /24s
Percentage of available address space announced: 4.9
Percentage of allocated address space announced: 4.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 99.6
Total number of prefixes smaller than registry allocations: 2647
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4429
Total APNIC prefixes after maximum aggregation: 2187
APNIC Deaggregation factor: 2.03
Prefixes being announced from the APNIC address blocks: 4416
Unique aggregates announced from the APNIC address blocks: 2508
APNIC Region origin ASes present in the Internet Routing Table: 504
APNIC Prefixes per ASN: 8.76
APNIC Region origin ASes announcing only one prefix: 206
APNIC Region transit ASes present in the Internet Routing Table: 58
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 16
Number of APNIC region 32-bit ASNs visible in the Routing Table: 181
Number of APNIC addresses announced to Internet: 35975936
Equivalent to 2 /8s, 36 /16s and 243 /24s
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-64098, 64297-64395, 131072-151865
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8,
163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8,
203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8,
222/8, 223/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 9883
Total ARIN prefixes after maximum aggregation: 5993
ARIN Deaggregation factor: 1.65
Prefixes being announced from the ARIN address blocks: 9828
Unique aggregates announced from the ARIN address blocks: 6808
ARIN Region origin ASes present in the Internet Routing Table: 1514
ARIN Prefixes per ASN: 6.49
ARIN Region origin ASes announcing only one prefix: 552
ARIN Region transit ASes present in the Internet Routing Table: 204
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 17
Number of ARIN region 32-bit ASNs visible in the Routing Table: 234
Number of ARIN addresses announced to Internet: 83269120
Equivalent to 4 /8s, 246 /16s and 150 /24s
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863, 39936-40959, 46080-47103
53248-55295, 62464-63487, 64198-64296, 393216-401308
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 47/8, 48/8, 50/8, 52/8, 53/8,
54/8, 55/8, 56/8, 57/8, 63/8, 64/8, 65/8,
66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8,
73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8,
99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8,
130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8,
138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8,
147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8,
158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8,
166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8,
174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8,
206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 3393
Total RIPE prefixes after maximum aggregation: 2775
RIPE Deaggregation factor: 1.22
Prefixes being announced from the RIPE address blocks: 3486
Unique aggregates announced from the RIPE address blocks: 2867
RIPE Region origin ASes present in the Internet Routing Table: 662
RIPE Prefixes per ASN: 5.27
RIPE Region origin ASes announcing only one prefix: 304
RIPE Region transit ASes present in the Internet Routing Table: 94
Average RIPE Region AS path length visible: 3.6
Max RIPE Region AS path length visible: 14
Number of RIPE region 32-bit ASNs visible in the Routing Table: 133
Number of RIPE addresses announced to Internet: 54413568
Equivalent to 3 /8s, 62 /16s and 73 /24s
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-45055, 47104-52223, 56320-58367
59392-61439, 61952-62463, 64396-64495
196608-213403
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8,
83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8,
90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8,
141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 1411
Total LACNIC prefixes after maximum aggregation: 555
LACNIC Deaggregation factor: 2.54
Prefixes being announced from the LACNIC address blocks: 1408
Unique aggregates announced from the LACNIC address blocks: 752
LACNIC Region origin ASes present in the Internet Routing Table: 164
LACNIC Prefixes per ASN: 8.59
LACNIC Region origin ASes announcing only one prefix: 66
LACNIC Region transit ASes present in the Internet Routing Table: 24
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 13
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 67
Number of LACNIC addresses announced to Internet: 4294912
Equivalent to 0 /8s, 65 /16s and 137 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-273820 + ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 871
Total AfriNIC prefixes after maximum aggregation: 170
AfriNIC Deaggregation factor: 5.12
Prefixes being announced from the AfriNIC address blocks: 871
Unique aggregates announced from the AfriNIC address blocks: 225
AfriNIC Region origin ASes present in the Internet Routing Table: 47
AfriNIC Prefixes per ASN: 18.53
AfriNIC Region origin ASes announcing only one prefix: 23
AfriNIC Region transit ASes present in the Internet Routing Table: 9
Average AfriNIC Region AS path length visible: 3.2
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 24
Number of AfriNIC addresses announced to Internet: 2640896
Equivalent to 0 /8s, 40 /16s and 76 /24s
AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks 41/8, 45/8, 102/8, 105/8, 154/8, 196/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2907 568 2124 451 SINET-AS Research Organization of Infor
7497 433 182 24 CSTNET-AS-AP Computer Network Informati
1237 187 74 135 KREONET-AS-KR KISTI, KR
7575 176 330 122 AARNET-AS-AP Australian Academic and Re
58647 175 18 2 KAGAWAU-AS Kagawa University, JP
55824 115 18 11 NKN-CORE-NW NKN Core Network, IN
4538 110 2367 69 ERX-CERNET-BKB China Education and Rese
4621 78 37 10 UNINET-AS-AP UNINET-, TH
4762 65 4 1 MAHIDOL-BORDER-AS Mahidol University, T
23570 59 5 11 INCHEON-AS-KR UNIVERSITY OF INCHEON, KR
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
668 209 717 173 DNIC-AS-00668, US
376 204 178 153 RISQ-AS, CA
5786 200 16 1 UPRENET, PR
18530 182 29 139 ISOMEDIA-1, US
2152 152 507 90 CSUNET-NW, US
18558 134 18 4 NETBLK-RCOEK, US
11404 123 177 105 AS-WAVE-1, US
270 119 329 88 AS270, US
23024 114 7 17 OCDE, US
2920 108 34 7 LACOE, US
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
680 285 1967 251 DFN Verein zur Foerderung eines Deutsch
786 186 1774 183 JANET Jisc Services Limited, GB
8895 137 24 3 ISU Internet Services Unit ISU, SA
559 115 550 106 SWITCH Peering requests: peering at switch
1103 98 1264 85 SURFNET-NL SURFnet, The Netherlands, NL
2614 96 27 76 ROEDUNET, RO
137 82 677 77 ASGARR Consortium GARR, IT
553 73 449 73 BELWUE BelWue-Koordination, DE
2200 64 599 59 FR-RENATER Reseau National de telecommu
1930 58 81 53 RCCN Fundacao para a Ciencia e a Tecnol
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1916 152 207 39 Rede Nacional de Ensino e Pesquisa, BR
28391 152 10 66 Universidad Juarez Autonoma de Tabasco,
11340 95 24 54 Red Universitaria Nacional, CL
1251 64 37 19 FUNDACAO DE AMPARO A PESQUISA DO ESTADO
2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo
19611 48 17 2 Associacao Antonio Vieira - Unisinos, B
4270 43 16 1 Red de Interconexion Universitaria, AR
28571 41 40 18 UNIVERSIDADE DE SAO PAULO, BR
61468 41 3 15 CEDIA, EC
28614 37 2 2 Fundacao Universidade Regional de Blume
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2018 375 319 72 TENET-1, ZA
36914 222 82 3 KENET-AS, KE
8094 48 48 15 PUKNET, ZA
327687 38 28 3 RENU, UG
327700 33 16 1 MoRENet, MZ
6879 24 2 9 ENSTINET-, EG
37182 18 8 1 TERNET, TZ
37074 13 8 2 UG-AS, GH
37501 11 49 6 UOFS, ZA
37654 10 1 6 RwEdNet-AS, RW
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
2907 568 2124 451 SINET-AS Research Organization of Infor
7497 433 182 24 CSTNET-AS-AP Computer Network Informati
2018 375 319 72 TENET-1, ZA
680 285 1967 251 DFN Verein zur Foerderung eines Deutsch
36914 222 82 3 KENET-AS, KE
668 209 717 173 DNIC-AS-00668, US
376 204 178 153 RISQ-AS, CA
5786 200 16 1 UPRENET, PR
1237 187 74 135 KREONET-AS-KR KISTI, KR
786 186 1774 183 JANET Jisc Services Limited, GB
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
7497 433 409 CSTNET-AS-AP Computer Network Information Cente
2018 375 303 TENET-1, ZA
36914 222 219 KENET-AS, KE
5786 200 199 UPRENET, PR
58647 175 173 KAGAWAU-AS Kagawa University, JP
8895 137 134 ISU Internet Services Unit ISU, SA
18558 134 130 NETBLK-RCOEK, US
1916 152 113 Rede Nacional de Ensino e Pesquisa, BR
55824 115 104 NKN-CORE-NW NKN Core Network, IN
2920 108 101 LACOE, US
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
19176 UNALLOCATED 63.81.146.0/24 32278 GETWIRELESS, US
19176 UNALLOCATED 63.108.136.0/23 32278 GETWIRELESS, US
19176 UNALLOCATED 63.108.137.0/24 32278 GETWIRELESS, US
19176 UNALLOCATED 63.108.138.0/24 32278 GETWIRELESS, US
19176 UNALLOCATED 63.127.160.0/22 32278 GETWIRELESS, US
19176 UNALLOCATED 63.127.161.0/24 32278 GETWIRELESS, US
19176 UNALLOCATED 63.127.162.0/24 32278 GETWIRELESS, US
19176 UNALLOCATED 63.127.163.0/24 32278 GETWIRELESS, US
19176 UNALLOCATED 63.127.168.0/21 32278 GETWIRELESS, US
19176 UNALLOCATED 63.127.169.0/24 32278 GETWIRELESS, US
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-badAS
Prefixes from the Special Purpose Address Registry (Global)
-----------------------------------------------------------
Prefix Origin AS Description
192.88.99.0/24 1103 SURFNET-NL SURFnet, The Netherlands, NL
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-spar
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
192.31.196.0/24 Origin: 112 UNASSIGNED
192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL
192.88.99.0/24 Origin: 1103 SURFNET-NL SURFnet, The Netherlands, NL
192.88.99.0/24 Transit: 293 ESNET, US
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-add-IANA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:0 /9:0 /10:0 /11:0 /12:0
/13:0 /14:36 /15:122 /16:2049 /17:422 /18:450
/19:616 /20:955 /21:989 /22:1636 /23:1746 /24:10990
/25:0 /26:0 /27:0 /28:0 /29:0 /30:0
/31:0 /32:0
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
36914 209 222 KENET-AS, KE
8895 132 137 ISU Internet Services Unit ISU, SA
30041 80 80 RACE, US
18530 56 182 ISOMEDIA-1, US
23024 53 114 OCDE, US
19194 43 45 JOVITA, US
25977 31 45 HCCS, US
28614 31 37 Fundacao Universidade Regional de Blumenau, BR
46115 31 33 LUTHER, US
16713 30 54 NOANET-WA, US
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:3 5:15 6:4 8:6 12:1 14:85
18:46 23:44 24:6 31:7 35:5 37:9
38:30 40:1 41:121 42:10 44:6 45:50
46:6 47:1 49:10 50:13 52:6 59:20
60:4 61:3 62:4 63:102 64:131 65:24
66:69 67:64 68:18 69:53 70:1 71:1
72:51 74:64 76:42 77:7 78:3 79:10
80:18 81:28 82:6 83:6 84:4 85:40
87:6 88:1 89:10 91:39 93:12 94:6
95:4 96:5 97:1 98:4 101:2 102:12
103:228 104:114 107:31 108:9 109:5 110:4
111:17 114:23 116:6 117:61 118:32 119:24
121:27 122:8 123:8 124:39 125:5 128:86
129:42 130:94 131:65 132:58 133:145 134:100
136:199 137:77 138:9 139:5 140:49 141:2
142:53 143:31 144:25 145:2 146:222 147:61
148:193 149:12 150:42 151:9 152:83 153:13
154:29 155:55 156:66 157:28 158:41 159:116
160:30 161:61 162:47 163:61 164:15 165:55
166:3 167:13 168:124 169:10 170:73 172:6
173:14 174:8 175:19 177:11 179:9 180:21
182:1 184:4 185:40 186:3 187:19 188:14
189:5 190:34 191:36 192:1531 193:262 194:127
195:55 196:161 197:130 198:559 199:336 200:237
201:38 202:607 203:429 204:400 205:184 206:217
207:184 208:126 209:139 210:179 211:13 212:150
213:5 214:7 216:101 217:11 218:22 219:6
220:17 222:5 223:3
End of report
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