[REN-BGP-stats-all] IPv4 R&E Routing Table Report - ESnet (R&E) view
REN Routing Table Report
cscora at frr.nsrc.org
Mon Sep 26 22:20:37 UTC 2022
IPv4 R&E Routing Table Report 22:20 GMT Mon 26 Sep, 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: 19343
Prefixes after maximum aggregation (per Origin AS): 11406
Deaggregation factor: 1.70
Unique aggregates announced (without unneeded subnets): 12747
Number of IPv4 prefixes with a valid ROA: 4165
Number of IPv4 prefixes with an invalid ROA: 62
Number of IPv4 prefixes with no ROA: 15116
Total ASes present in the Internet Routing Table: 2915
Prefixes per ASN: 6.64
Origin-only ASes present in the Internet Routing Table: 2506
Origin ASes announcing only one prefix: 1114
Transit ASes present in the Internet Routing Table: 409
Transit-only ASes present in the Internet Routing Table: 75
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: 23
Number of instances of unregistered ASNs: 23
Number of 32-bit ASNs allocated by the RIRs: 40259
Number of 32-bit ASNs visible in the Routing Table: 608
Prefixes from 32-bit ASNs in the Routing Table: 1735
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: 180575488
Equivalent to 10 /8s, 195 /16s and 93 /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: 2512
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4211
Total APNIC prefixes after maximum aggregation: 2135
APNIC Deaggregation factor: 1.97
Prefixes being announced from the APNIC address blocks: 4198
Unique aggregates announced from the APNIC address blocks: 2441
APNIC Region origin ASes present in the Internet Routing Table: 510
APNIC Prefixes per ASN: 8.23
APNIC Region origin ASes announcing only one prefix: 208
APNIC Region transit ASes present in the Internet Routing Table: 63
Average APNIC Region AS path length visible: 3.9
Max APNIC Region AS path length visible: 16
Number of APNIC region 32-bit ASNs visible in the Routing Table: 174
Number of APNIC addresses announced to Internet: 35962880
Equivalent to 2 /8s, 36 /16s and 192 /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: 9467
Total ARIN prefixes after maximum aggregation: 5788
ARIN Deaggregation factor: 1.64
Prefixes being announced from the ARIN address blocks: 9468
Unique aggregates announced from the ARIN address blocks: 6507
ARIN Region origin ASes present in the Internet Routing Table: 1490
ARIN Prefixes per ASN: 6.35
ARIN Region origin ASes announcing only one prefix: 547
ARIN Region transit ASes present in the Internet Routing Table: 202
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 17
Number of ARIN region 32-bit ASNs visible in the Routing Table: 235
Number of ARIN addresses announced to Internet: 83746816
Equivalent to 4 /8s, 253 /16s and 224 /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: 3412
Total RIPE prefixes after maximum aggregation: 2771
RIPE Deaggregation factor: 1.23
Prefixes being announced from the RIPE address blocks: 3445
Unique aggregates announced from the RIPE address blocks: 2838
RIPE Region origin ASes present in the Internet Routing Table: 654
RIPE Prefixes per ASN: 5.27
RIPE Region origin ASes announcing only one prefix: 293
RIPE Region transit ASes present in the Internet Routing Table: 93
Average RIPE Region AS path length visible: 3.7
Max RIPE Region AS path length visible: 14
Number of RIPE region 32-bit ASNs visible in the Routing Table: 129
Number of RIPE addresses announced to Internet: 54284544
Equivalent to 3 /8s, 60 /16s and 81 /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: 1385
Total LACNIC prefixes after maximum aggregation: 542
LACNIC Deaggregation factor: 2.56
Prefixes being announced from the LACNIC address blocks: 1385
Unique aggregates announced from the LACNIC address blocks: 744
LACNIC Region origin ASes present in the Internet Routing Table: 156
LACNIC Prefixes per ASN: 8.88
LACNIC Region origin ASes announcing only one prefix: 60
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: 64
Number of LACNIC addresses announced to Internet: 4153600
Equivalent to 0 /8s, 63 /16s and 97 /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: 845
Total AfriNIC prefixes after maximum aggregation: 158
AfriNIC Deaggregation factor: 5.35
Prefixes being announced from the AfriNIC address blocks: 845
Unique aggregates announced from the AfriNIC address blocks: 215
AfriNIC Region origin ASes present in the Internet Routing Table: 24
AfriNIC Prefixes per ASN: 35.21
AfriNIC Region origin ASes announcing only one prefix: 6
AfriNIC Region transit ASes present in the Internet Routing Table: 7
Average AfriNIC Region AS path length visible: 3.1
Max AfriNIC Region AS path length visible: 9
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 6
Number of AfriNIC addresses announced to Internet: 2427136
Equivalent to 0 /8s, 37 /16s and 9 /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 564 2140 453 SINET-AS Research Organization of Infor
7497 432 182 24 CSTNET-AS-AP Computer Network Informati
1237 185 74 134 KREONET-AS-KR KISTI, KR
7575 175 329 121 AARNET-AS-AP Australian Academic and Re
58647 175 18 2 KAGAWAU-AS Kagawa University, JP
4538 110 2367 69 ERX-CERNET-BKB China Education and Rese
4621 77 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
38280 50 3 2 MONASHUNI-MY-AS-AP Monash University Su
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
668 213 718 176 DNIC-AS-00668, US
376 203 178 152 RISQ-AS, CA
2152 151 507 92 CSUNET-NW, US
18558 137 18 4 NETBLK-RCOEK, US
11404 125 169 104 AS-WAVE-1, US
5786 121 16 1 UPRENET, PR
270 118 329 87 AS270, US
23024 114 7 17 OCDE, US
2920 108 34 7 LACOE, US
21976 85 51 18 NJEDGE-NET, 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
680 281 1935 249 DFN Verein zur Foerderung eines Deutsch
786 186 1775 183 JANET Jisc Services Limited, GB
8895 138 24 3 ISU Internet Services Unit ISU, SA
559 115 550 106 SWITCH Peering requests: peering at switch
1103 99 1264 86 SURFNET-NL SURFnet, The Netherlands, NL
2614 95 27 75 ROEDUNET, RO
137 81 676 76 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
28391 152 10 66 Universidad Juarez Autonoma de Tabasco,
1916 151 207 39 Rede Nacional de Ensino e Pesquisa, BR
11340 96 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
4270 44 16 1 Red de Interconexion Universitaria, AR
61468 42 3 15 CEDIA, EC
28571 40 40 18 UNIVERSIDADE DE SAO PAULO, BR
19611 37 17 2 Associacao Antonio Vieira - Unisinos, B
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 374 319 72 TENET-1, ZA
36914 244 82 3 KENET-AS, KE
8094 48 48 15 PUKNET, ZA
327687 38 28 3 RENU, UG
327700 31 16 1 MoRENet, MZ
6879 24 2 9 ENSTINET-, EG
37182 19 1 14 TERNET, TZ
37501 11 49 6 UOFS, ZA
37654 10 1 6 RwEdNet-AS, RW
36982 8 33 8 UCT, ZA
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 564 2140 453 SINET-AS Research Organization of Infor
7497 432 182 24 CSTNET-AS-AP Computer Network Informati
2018 374 319 72 TENET-1, ZA
680 281 1935 249 DFN Verein zur Foerderung eines Deutsch
36914 244 82 3 KENET-AS, KE
668 213 718 176 DNIC-AS-00668, US
376 203 178 152 RISQ-AS, CA
786 186 1775 183 JANET Jisc Services Limited, GB
1237 185 74 134 KREONET-AS-KR KISTI, KR
7575 175 329 121 AARNET-AS-AP Australian Academic and Re
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 432 408 CSTNET-AS-AP Computer Network Information Cente
2018 374 302 TENET-1, ZA
36914 244 241 KENET-AS, KE
58647 175 173 KAGAWAU-AS Kagawa University, JP
8895 138 135 ISU Internet Services Unit ISU, SA
18558 137 133 NETBLK-RCOEK, US
5786 121 120 UPRENET, PR
1916 151 112 Rede Nacional de Ensino e Pesquisa, BR
2920 108 101 LACOE, US
23024 114 97 OCDE, 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 /17:423 /18:454
/19:600 /20:937 /21:973 /22:1573 /23:1685 /24:10491
/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 231 244 KENET-AS, KE
8895 133 138 ISU Internet Services Unit ISU, SA
23024 53 114 OCDE, US
30041 53 60 RACE, US
18632 34 65 VOLCANO-VISION, US
32440 32 47 LONI, US
25977 31 45 HCCS, US
28614 31 37 Fundacao Universidade Regional de Blumenau, BR
46115 31 33 LUTHER, US
200521 31 52 SEAP-AGE, ES
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 8:5 12:1 14:3
18:43 23:32 24:7 31:6 35:6 38:30
40:1 41:124 42:10 44:6 45:40 46:5
47:1 49:6 50:10 52:11 58:1 59:20
60:4 61:3 62:5 63:64 64:122 65:22
66:65 67:62 68:18 69:50 70:3 71:2
72:30 74:61 76:43 77:6 78:3 79:10
80:18 81:27 82:7 83:6 84:5 85:39
86:2 87:2 88:1 89:10 91:37 93:4
94:4 95:4 96:5 97:1 98:3 101:6
103:240 104:100 107:21 108:9 109:6 110:4
111:16 114:23 116:6 117:61 118:32 119:23
121:27 122:8 123:8 124:39 125:4 128:86
129:44 130:92 131:69 132:60 133:146 134:100
136:119 137:77 138:11 139:5 140:50 141:2
142:39 143:30 144:3 145:2 146:223 147:68
148:193 149:12 150:42 151:9 152:82 153:14
154:28 155:55 156:66 157:23 158:19 159:116
160:30 161:60 162:47 163:60 164:10 165:51
166:2 167:17 168:124 169:10 170:77 172:2
173:11 174:8 175:30 177:11 179:6 180:4
182:4 184:3 185:40 186:3 187:19 188:13
189:3 190:34 191:36 192:1500 193:258 194:122
195:61 196:157 197:148 198:564 199:317 200:229
201:38 202:579 203:425 204:387 205:137 206:220
207:180 208:110 209:143 210:177 211:13 212:174
213:5 214:7 216:108 217:11 218:22 219:6
220:13 222:5 223:4
End of report
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