[REN-BGP-stats-all] IPv4 R&E Routing Table Report - ESnet (R&E) view
REN Routing Table Report
cscora at frr.nsrc.org
Mon Mar 6 22:20:38 UTC 2023
IPv4 R&E Routing Table Report 22:20 GMT Mon 06 Mar, 2023
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: 20306
Prefixes after maximum aggregation (per Origin AS): 11872
Deaggregation factor: 1.71
Unique aggregates announced (without unneeded subnets): 13317
Number of IPv4 prefixes with a valid ROA: 5135
Number of IPv4 prefixes with an invalid ROA: 83
Number of IPv4 prefixes with no ROA: 15088
Total ASes present in the Internet Routing Table: 2986
Prefixes per ASN: 6.80
Origin-only ASes present in the Internet Routing Table: 2584
Origin ASes announcing only one prefix: 1149
Transit ASes present in the Internet Routing Table: 402
Transit-only ASes present in the Internet Routing Table: 73
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: 19
Max AS path prepend of ASN (395156) 12
Prefixes from unregistered ASNs in the Routing Table: 5
Number of instances of unregistered ASNs: 5
Number of 32-bit ASNs allocated by the RIRs: 41374
Number of 32-bit ASNs visible in the Routing Table: 673
Prefixes from 32-bit ASNs in the Routing Table: 1923
Number of bogon 32-bit ASNs visible in the Routing Table: 0
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 1
Number of addresses announced to Internet: 180116224
Equivalent to 10 /8s, 188 /16s and 91 /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: 2668
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4554
Total APNIC prefixes after maximum aggregation: 2232
APNIC Deaggregation factor: 2.04
Prefixes being announced from the APNIC address blocks: 4556
Unique aggregates announced from the APNIC address blocks: 2595
APNIC Region origin ASes present in the Internet Routing Table: 553
APNIC Prefixes per ASN: 8.24
APNIC Region origin ASes announcing only one prefix: 240
APNIC Region transit ASes present in the Internet Routing Table: 57
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 14
Number of APNIC region 32-bit ASNs visible in the Routing Table: 210
Number of APNIC addresses announced to Internet: 35898368
Equivalent to 2 /8s, 35 /16s and 196 /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: 10124
Total ARIN prefixes after maximum aggregation: 6192
ARIN Deaggregation factor: 1.64
Prefixes being announced from the ARIN address blocks: 9983
Unique aggregates announced from the ARIN address blocks: 6895
ARIN Region origin ASes present in the Internet Routing Table: 1499
ARIN Prefixes per ASN: 6.66
ARIN Region origin ASes announcing only one prefix: 542
ARIN Region transit ASes present in the Internet Routing Table: 203
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 19
Number of ARIN region 32-bit ASNs visible in the Routing Table: 244
Number of ARIN addresses announced to Internet: 83432704
Equivalent to 4 /8s, 249 /16s and 21 /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: 3466
Total RIPE prefixes after maximum aggregation: 2790
RIPE Deaggregation factor: 1.24
Prefixes being announced from the RIPE address blocks: 3612
Unique aggregates announced from the RIPE address blocks: 2988
RIPE Region origin ASes present in the Internet Routing Table: 665
RIPE Prefixes per ASN: 5.43
RIPE Region origin ASes announcing only one prefix: 296
RIPE Region transit ASes present in the Internet Routing Table: 95
Average RIPE Region AS path length visible: 3.6
Max RIPE Region AS path length visible: 12
Number of RIPE region 32-bit ASNs visible in the Routing Table: 139
Number of RIPE addresses announced to Internet: 54348288
Equivalent to 3 /8s, 61 /16s and 74 /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: 1207
Total LACNIC prefixes after maximum aggregation: 492
LACNIC Deaggregation factor: 2.45
Prefixes being announced from the LACNIC address blocks: 1205
Unique aggregates announced from the LACNIC address blocks: 623
LACNIC Region origin ASes present in the Internet Routing Table: 154
LACNIC Prefixes per ASN: 7.82
LACNIC Region origin ASes announcing only one prefix: 55
LACNIC Region transit ASes present in the Internet Routing Table: 23
Average LACNIC Region AS path length visible: 4.3
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: 3926272
Equivalent to 0 /8s, 59 /16s and 233 /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: 950
Total AfriNIC prefixes after maximum aggregation: 161
AfriNIC Deaggregation factor: 5.90
Prefixes being announced from the AfriNIC address blocks: 949
Unique aggregates announced from the AfriNIC address blocks: 215
AfriNIC Region origin ASes present in the Internet Routing Table: 38
AfriNIC Prefixes per ASN: 24.97
AfriNIC Region origin ASes announcing only one prefix: 16
AfriNIC Region transit ASes present in the Internet Routing Table: 9
Average AfriNIC Region AS path length visible: 3.3
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 16
Number of AfriNIC addresses announced to Internet: 2510080
Equivalent to 0 /8s, 38 /16s and 77 /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 584 2156 457 SINET-AS Research Organization of Infor
7497 435 182 24 CSTNET-AS-AP Computer Network Informati
1237 183 74 133 KREONET-AS-KR KISTI, KR
58647 178 18 2 KAGAWAU-AS Kagawa University, JP
7575 173 329 119 AARNET-AS-AP Australian Academic and Re
55824 117 18 10 NKN-CORE-NW NKN Core Network, IN
4538 112 2368 69 ERX-CERNET-BKB China Education and Rese
4621 69 37 10 UNINET-AS-AP UNINET-, TH
9411 66 16 2 NONTRINET-AS-AP Kasetsart University, T
4762 65 4 1 MAHIDOL-BORDER-AS Mahidol University, T
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
668 215 686 183 DNIC-AS-00668, US
376 199 178 149 RISQ-AS, CA
5786 199 16 1 UPRENET, PR
16509 189 14 103 AMAZON-02, US
18530 162 28 129 ISOMEDIA-1, US
2152 149 507 93 CSUNET-NW, US
18558 134 18 4 NETBLK-RCOEK, US
11404 133 177 105 AS-WAVE-1, US
270 118 329 87 AS270, US
23024 113 7 17 OCDE, 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 1919 249 DFN Verein zur Foerderung eines Deutsch
786 186 1775 183 JANET Jisc Services Limited, GB
8895 135 24 3 ISU Internet Services Unit ISU, SA
559 115 550 106 SWITCH Peering requests: peering at switch
1103 95 1262 84 SURFNET-NL SURFnet, The Netherlands, NL
2614 94 27 74 ROEDUNET, RO
137 82 677 77 ASGARR Consortium GARR, IT
553 73 449 73 BELWUE BelWue-Koordination, DE
1930 65 81 60 RCCN Fundacao para a Ciencia e a Tecnol
2200 64 599 59 FR-RENATER Reseau National de telecommu
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
11340 104 24 47 Red Universitaria Nacional, CL
1251 63 37 19 FUNDACAO DE AMPARO A PESQUISA DO ESTADO
2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo
4270 45 16 1 Red de Interconexion Universitaria, AR
61468 42 3 14 CEDIA, EC
28614 38 2 2 Fundacao Universidade Regional de Blume
19611 37 17 2 Associacao Antonio Vieira - Unisinos, B
28571 37 40 18 UNIVERSIDADE DE SAO PAULO, BR
263282 37 5 12 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA
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 379 319 72 TENET-1, ZA
36914 245 82 3 KENET-AS, KE
327687 61 28 3 RENU, UG
8094 48 48 15 PUKNET, ZA
3208 32 2 1 ARN, DZ
37182 32 8 1 TERNET, TZ
327700 32 16 1 MoRENet, MZ
6879 24 2 9 ENSTINET-, EG
37074 13 8 2 UG-AS, GH
37501 11 49 6 UOFS, 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 584 2156 457 SINET-AS Research Organization of Infor
7497 435 182 24 CSTNET-AS-AP Computer Network Informati
2018 379 319 72 TENET-1, ZA
680 283 1919 249 DFN Verein zur Foerderung eines Deutsch
36914 245 82 3 KENET-AS, KE
668 215 686 183 DNIC-AS-00668, US
376 199 178 149 RISQ-AS, CA
5786 199 16 1 UPRENET, PR
16509 189 14 103 AMAZON-02, US
786 186 1775 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 435 411 CSTNET-AS-AP Computer Network Information Cente
2018 379 307 TENET-1, ZA
36914 245 242 KENET-AS, KE
5786 199 198 UPRENET, PR
58647 178 176 KAGAWAU-AS Kagawa University, JP
8895 135 132 ISU Internet Services Unit ISU, SA
18558 134 130 NETBLK-RCOEK, US
1916 152 113 Rede Nacional de Ensino e Pesquisa, BR
55824 117 107 NKN-CORE-NW NKN Core Network, IN
2920 107 100 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
394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, US
18621 UNALLOCATED 142.156.0.0/16 26677 ORION-ASN, CA
33008 UNALLOCATED 162.248.66.0/24 11096 FLORIDANET, US
19658 UNALLOCATED 199.27.241.0/24 11096 FLORIDANET, US
394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, US
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-badAS
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
102.36.194.0/23 Origin: 2018 TENET-1, ZA
102.36.194.0/23 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 /16:2037 /17:436 /18:460
/19:609 /20:946 /21:976 /22:1681 /23:1752 /24:11251
/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 232 245 KENET-AS, KE
8895 130 135 ISU Internet Services Unit ISU, SA
18530 56 162 ISOMEDIA-1, US
23024 52 113 OCDE, US
30041 48 58 RACE, US
19194 43 45 JOVITA, US
18632 34 65 VOLCANO-VISION, US
16713 33 56 NOANET-WA, US
32440 33 48 LONI, US
28614 32 38 Fundacao Universidade Regional de Blumenau, BR
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1 5:15 6:4 8:6 12:1 14:89
15:5 18:42 23:52 24:7 31:8 35:12
37:4 38:26 40:1 41:138 42:10 44:7
45:46 46:6 47:1 49:7 50:9 52:21
58:1 59:20 60:4 61:3 62:7 63:89
64:106 65:23 66:73 67:67 68:18 69:49
70:3 71:2 72:27 74:64 76:48 77:9
78:3 79:10 80:17 81:28 82:5 83:6
84:5 85:42 86:2 87:7 89:10 91:43
92:1 93:6 94:6 95:2 96:5 97:3
98:10 101:6 102:12 103:287 104:111 107:31
108:9 109:7 110:2 111:16 114:23 115:1
116:8 117:61 118:32 119:21 121:27 122:8
123:8 124:39 125:4 128:86 129:45 130:88
131:61 132:50 133:156 134:102 135:1 136:206
137:94 138:9 139:7 140:54 141:4 142:52
143:30 144:25 145:2 146:226 147:66 148:42
149:12 150:132 151:12 152:84 153:14 154:30
155:74 156:67 157:34 158:42 159:161 160:30
161:63 162:49 163:77 164:11 165:51 166:3
167:17 168:135 169:14 170:95 172:6 173:15
174:10 175:31 177:9 179:10 180:14 181:1
182:1 184:3 185:48 186:3 187:19 188:14
189:3 190:18 191:36 192:1531 193:299 194:132
195:58 196:167 197:148 198:574 199:349 200:217
201:38 202:609 203:432 204:407 205:145 206:219
207:182 208:123 209:140 210:179 211:13 212:169
213:5 214:8 216:134 217:11 218:22 219:6
220:16 222:5 223:4
End of report
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