[REN-BGP-stats-all] IPv4 R&E Routing Table Report - ESnet (R&E) view
REN Routing Table Report
cscora at frr.nsrc.org
Mon Aug 15 22:20:37 UTC 2022
IPv4 R&E Routing Table Report 22:20 GMT Mon 15 Aug, 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: 20097
Prefixes after maximum aggregation (per Origin AS): 11812
Deaggregation factor: 1.70
Unique aggregates announced (without unneeded subnets): 13247
Number of IPv4 prefixes with a valid ROA: 4521
Number of IPv4 prefixes with an invalid ROA: 65
Number of IPv4 prefixes with no ROA: 15511
Total ASes present in the Internet Routing Table: 3030
Prefixes per ASN: 6.63
Origin-only ASes present in the Internet Routing Table: 2609
Origin ASes announcing only one prefix: 1185
Transit ASes present in the Internet Routing Table: 421
Transit-only ASes present in the Internet Routing Table: 74
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: 39988
Number of 32-bit ASNs visible in the Routing Table: 677
Prefixes from 32-bit ASNs in the Routing Table: 1865
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: 180944384
Equivalent to 10 /8s, 200 /16s and 254 /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: 2657
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4533
Total APNIC prefixes after maximum aggregation: 2256
APNIC Deaggregation factor: 2.01
Prefixes being announced from the APNIC address blocks: 4520
Unique aggregates announced from the APNIC address blocks: 2596
APNIC Region origin ASes present in the Internet Routing Table: 562
APNIC Prefixes per ASN: 8.04
APNIC Region origin ASes announcing only one prefix: 242
APNIC Region transit ASes present in the Internet Routing Table: 66
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 16
Number of APNIC region 32-bit ASNs visible in the Routing Table: 215
Number of APNIC addresses announced to Internet: 36113920
Equivalent to 2 /8s, 39 /16s and 14 /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: 9845
Total ARIN prefixes after maximum aggregation: 6020
ARIN Deaggregation factor: 1.64
Prefixes being announced from the ARIN address blocks: 9785
Unique aggregates announced from the ARIN address blocks: 6745
ARIN Region origin ASes present in the Internet Routing Table: 1519
ARIN Prefixes per ASN: 6.44
ARIN Region origin ASes announcing only one prefix: 556
ARIN Region transit ASes present in the Internet Routing Table: 207
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: 238
Number of ARIN addresses announced to Internet: 83685888
Equivalent to 4 /8s, 252 /16s and 242 /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: 3442
Total RIPE prefixes after maximum aggregation: 2796
RIPE Deaggregation factor: 1.23
Prefixes being announced from the RIPE address blocks: 3537
Unique aggregates announced from the RIPE address blocks: 2916
RIPE Region origin ASes present in the Internet Routing Table: 663
RIPE Prefixes per ASN: 5.33
RIPE Region origin ASes announcing only one prefix: 301
RIPE Region transit ASes present in the Internet Routing Table: 95
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: 134
Number of RIPE addresses announced to Internet: 54379776
Equivalent to 3 /8s, 61 /16s and 197 /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: 1380
Total LACNIC prefixes after maximum aggregation: 546
LACNIC Deaggregation factor: 2.53
Prefixes being announced from the LACNIC address blocks: 1380
Unique aggregates announced from the LACNIC address blocks: 745
LACNIC Region origin ASes present in the Internet Routing Table: 160
LACNIC Prefixes per ASN: 8.62
LACNIC Region origin ASes announcing only one prefix: 64
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: 4151552
Equivalent to 0 /8s, 63 /16s and 89 /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: 873
Total AfriNIC prefixes after maximum aggregation: 181
AfriNIC Deaggregation factor: 4.82
Prefixes being announced from the AfriNIC address blocks: 873
Unique aggregates announced from the AfriNIC address blocks: 243
AfriNIC Region origin ASes present in the Internet Routing Table: 46
AfriNIC Prefixes per ASN: 18.98
AfriNIC Region origin ASes announcing only one prefix: 22
AfriNIC Region transit ASes present in the Internet Routing Table: 9
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 23
Number of AfriNIC addresses announced to Internet: 2612736
Equivalent to 0 /8s, 39 /16s and 222 /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 569 2140 452 SINET-AS Research Organization of Infor
7497 433 182 24 CSTNET-AS-AP Computer Network Informati
1237 185 74 134 KREONET-AS-KR KISTI, KR
58647 175 18 2 KAGAWAU-AS Kagawa University, JP
7575 174 329 120 AARNET-AS-AP Australian Academic and Re
55824 115 18 11 NKN-CORE-NW NKN Core Network, IN
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
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
5786 200 16 1 UPRENET, PR
18530 182 29 139 ISOMEDIA-1, US
2152 151 507 91 CSUNET-NW, US
18558 135 18 4 NETBLK-RCOEK, US
11404 125 177 105 AS-WAVE-1, US
270 118 329 87 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
680 283 1951 250 DFN Verein zur Foerderung eines Deutsch
786 185 1774 182 JANET Jisc Services Limited, GB
8895 136 24 3 ISU Internet Services Unit ISU, SA
559 115 550 106 SWITCH Peering requests: peering at switch
1103 97 1264 85 SURFNET-NL SURFnet, The Netherlands, NL
2614 95 27 75 ROEDUNET, RO
137 82 677 77 ASGARR Consortium GARR, IT
553 73 449 73 BELWUE BelWue-Koordination, DE
2200 63 583 58 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 40 Rede Nacional de Ensino e Pesquisa, BR
11340 95 24 54 Red Universitaria Nacional, CL
1251 64 37 19 FUNDACAO DE AMPARO A PESQUISA DO ESTADO
2715 59 102 39 Fundacao Carlos Chagas Filho de Amparo
4270 42 16 1 Red de Interconexion Universitaria, AR
61468 42 3 15 CEDIA, EC
28571 41 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 375 319 72 TENET-1, ZA
36914 223 82 3 KENET-AS, KE
8094 48 48 15 PUKNET, ZA
327687 38 28 3 RENU, UG
327700 34 16 1 MoRENet, MZ
6879 24 2 9 ENSTINET-, EG
37182 19 1 13 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 569 2140 452 SINET-AS Research Organization of Infor
7497 433 182 24 CSTNET-AS-AP Computer Network Informati
2018 375 319 72 TENET-1, ZA
680 283 1951 250 DFN Verein zur Foerderung eines Deutsch
36914 223 82 3 KENET-AS, KE
668 213 718 176 DNIC-AS-00668, US
376 203 178 152 RISQ-AS, CA
5786 200 16 1 UPRENET, PR
786 185 1774 182 JANET Jisc Services Limited, GB
1237 185 74 134 KREONET-AS-KR KISTI, KR
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 223 220 KENET-AS, KE
5786 200 199 UPRENET, PR
58647 175 173 KAGAWAU-AS Kagawa University, JP
8895 136 133 ISU Internet Services Unit ISU, SA
18558 135 131 NETBLK-RCOEK, US
1916 151 111 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 /16:2048 /17:422 /18:457
/19:623 /20:956 /21:993 /22:1639 /23:1760 /24:11041
/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 210 223 KENET-AS, KE
8895 131 136 ISU Internet Services Unit ISU, SA
30041 64 72 RACE, US
18530 56 182 ISOMEDIA-1, US
23024 53 114 OCDE, US
19194 43 45 JOVITA, US
18632 34 63 VOLCANO-VISION, US
25977 31 45 HCCS, US
28614 31 37 Fundacao Universidade Regional de Blumenau, BR
32440 31 46 LONI, 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 14:86
18:43 23:41 24:7 31:7 35:6 37:9
38:30 40:1 41:130 42:10 44:6 45:49
46:6 47:1 49:10 50:12 52:13 58:1
59:20 60:4 61:3 62:7 63:102 64:123
65:12 66:54 67:63 68:18 69:52 70:3
71:1 72:41 74:64 76:44 77:7 78:3
79:10 80:18 81:27 82:6 83:6 84:5
85:40 86:2 87:6 88:1 89:10 91:41
93:12 94:6 95:4 96:5 97:3 98:4
101:6 102:12 103:294 104:114 107:31 108:9
109:5 110:4 111:16 114:23 116:6 117:61
118:32 119:24 121:27 122:8 123:8 124:39
125:5 128:86 129:43 130:92 131:68 132:59
133:145 134:101 136:197 137:76 138:11 139:5
140:50 141:2 142:51 143:30 144:25 145:2
146:222 147:60 148:193 149:12 150:42 151:9
152:84 153:13 154:28 155:55 156:66 157:22
158:38 159:116 160:30 161:61 162:47 163:63
164:15 165:55 166:3 167:16 168:125 169:10
170:71 172:6 173:12 174:8 175:31 177:11
179:9 180:18 182:4 184:4 185:42 186:3
187:19 188:14 189:3 190:34 191:36 192:1533
193:260 194:127 195:61 196:161 197:127 198:566
199:340 200:223 201:38 202:615 203:434 204:399
205:141 206:221 207:182 208:132 209:138 210:178
211:13 212:171 213:5 214:7 216:104 217:11
218:22 219:6 220:17 222:5 223:3
End of report
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