[REN-BGP-stats-all] IPv4 R&E Routing Table Report - Internet2 (R&E) view
REN Routing Table Report
cscora at frr.nsrc.org
Thu Jun 22 22:00:44 UTC 2023
IPv4 R&E Routing Table Report 22:00 GMT Thu 22 Jun, 2023
IPv4 BGP Table (R&E) as seen at Internet2.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/Internet2/
Analysis Summary
----------------
BGP routing table entries examined: 23317
Prefixes after maximum aggregation (per Origin AS): 12766
Deaggregation factor: 1.83
Unique aggregates announced (without unneeded subnets): 14886
Number of IPv4 prefixes with a valid ROA: 8974
Number of IPv4 prefixes with an invalid ROA: 22
Number of IPv4 prefixes with no ROA: 14321
Total ASes present in the Internet Routing Table: 2736
Prefixes per ASN: 8.52
Origin-only ASes present in the Internet Routing Table: 2361
Origin ASes announcing only one prefix: 1033
Transit ASes present in the Internet Routing Table: 375
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: 3.3
Max AS path length visible: 18
Max AS path prepend of ASN (395156) 12
Prefixes from unregistered ASNs in the Routing Table: 7
Number of instances of unregistered ASNs: 7
Number of 32-bit ASNs allocated by the RIRs: 42127
Number of 32-bit ASNs visible in the Routing Table: 614
Prefixes from 32-bit ASNs in the Routing Table: 1897
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: 8
Number of addresses announced to Internet: 242213240
Equivalent to 14 /8s, 111 /16s and 225 /24s
Percentage of available address space announced: 6.5
Percentage of allocated address space announced: 6.5
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: 3087
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4578
Total APNIC prefixes after maximum aggregation: 2225
APNIC Deaggregation factor: 2.06
Prefixes being announced from the APNIC address blocks: 4650
Unique aggregates announced from the APNIC address blocks: 2615
APNIC Region origin ASes present in the Internet Routing Table: 529
APNIC Prefixes per ASN: 8.79
APNIC Region origin ASes announcing only one prefix: 222
APNIC Region transit ASes present in the Internet Routing Table: 57
Average APNIC Region AS path length visible: 3.8
Max APNIC Region AS path length visible: 13
Number of APNIC region 32-bit ASNs visible in the Routing Table: 196
Number of APNIC addresses announced to Internet: 45732672
Equivalent to 2 /8s, 185 /16s and 211 /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, 131072-153913
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: 12487
Total ARIN prefixes after maximum aggregation: 6923
ARIN Deaggregation factor: 1.80
Prefixes being announced from the ARIN address blocks: 12275
Unique aggregates announced from the ARIN address blocks: 8164
ARIN Region origin ASes present in the Internet Routing Table: 1242
ARIN Prefixes per ASN: 9.88
ARIN Region origin ASes announcing only one prefix: 426
ARIN Region transit ASes present in the Internet Routing Table: 161
Average ARIN Region AS path length visible: 2.9
Max ARIN Region AS path length visible: 18
Number of ARIN region 32-bit ASNs visible in the Routing Table: 185
Number of ARIN addresses announced to Internet: 131549080
Equivalent to 7 /8s, 215 /16s and 71 /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: 3644
Total RIPE prefixes after maximum aggregation: 2870
RIPE Deaggregation factor: 1.27
Prefixes being announced from the RIPE address blocks: 3778
Unique aggregates announced from the RIPE address blocks: 3082
RIPE Region origin ASes present in the Internet Routing Table: 684
RIPE Prefixes per ASN: 5.52
RIPE Region origin ASes announcing only one prefix: 302
RIPE Region transit ASes present in the Internet Routing Table: 107
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: 143
Number of RIPE addresses announced to Internet: 57997824
Equivalent to 3 /8s, 116 /16s and 250 /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: 1505
Total LACNIC prefixes after maximum aggregation: 569
LACNIC Deaggregation factor: 2.64
Prefixes being announced from the LACNIC address blocks: 1511
Unique aggregates announced from the LACNIC address blocks: 793
LACNIC Region origin ASes present in the Internet Routing Table: 159
LACNIC Prefixes per ASN: 9.50
LACNIC Region origin ASes announcing only one prefix: 58
LACNIC Region transit ASes present in the Internet Routing Table: 25
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 12
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 64
Number of LACNIC addresses announced to Internet: 4258976
Equivalent to 0 /8s, 64 /16s and 252 /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: 1096
Total AfriNIC prefixes after maximum aggregation: 172
AfriNIC Deaggregation factor: 6.37
Prefixes being announced from the AfriNIC address blocks: 1095
Unique aggregates announced from the AfriNIC address blocks: 224
AfriNIC Region origin ASes present in the Internet Routing Table: 50
AfriNIC Prefixes per ASN: 21.90
AfriNIC Region origin ASes announcing only one prefix: 25
AfriNIC Region transit ASes present in the Internet Routing Table: 9
Average AfriNIC Region AS path length visible: 2.9
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 26
Number of AfriNIC addresses announced to Internet: 2668544
Equivalent to 0 /8s, 40 /16s and 184 /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 602 2154 466 SINET-AS Research Organization of Infor
7497 435 180 23 CSTNET-AS-AP Computer Network Informati
1237 193 74 139 KREONET-AS-KR KISTI, KR
58647 178 18 2 KAGAWAU-AS Kagawa University, JP
7575 177 329 121 AARNET-AS-AP Australian Academic and Re
4538 130 4192 73 ERX-CERNET-BKB China Education and Rese
55824 118 18 11 NKN-CORE-NW NKN Core Network, IN
4621 70 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/Internet2/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 3410 4675 1475 AMAZON-02, US
14618 786 4013 584 AMAZON-AES, US
668 217 636 180 DNIC-AS-00668, US
376 202 178 150 RISQ-AS, CA
5786 198 16 1 UPRENET, PR
2152 144 507 93 CSUNET-NW, US
18558 134 18 4 NETBLK-RCOEK, US
81 128 521 31 NCREN, US
1 122 2 46 LVLT-1, US
270 117 329 82 AS270, US
Complete listing at https://bgp.nsrc.org/REN/Internet2/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
680 284 1919 250 DFN Verein zur Foerderung eines Deutsch
786 186 1767 183 JANET Jisc Services Limited, GB
8895 177 24 5 ISU Internet Services Unit ISU, SA
559 112 533 104 SWITCH Peering requests: peering at switch
1103 94 1502 83 SURFNET-NL SURFnet, The Netherlands, NL
2614 94 27 74 ROEDUNET, RO
137 82 677 77 ASGARR Consortium GARR, IT
553 74 465 74 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/Internet2/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1916 259 192 43 Rede Nacional de Ensino e Pesquisa, BR
28391 153 10 67 Universidad Juarez Autonoma de Tabasco,
11340 103 24 47 Red Universitaria Nacional, CL
1251 60 37 19 FUNDACAO DE AMPARO A PESQUISA DO ESTADO
2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo
4270 48 16 1 Red de Interconexion Universitaria, AR
61468 43 3 15 CEDIA, EC
28614 38 2 2 Fundacao Universidade Regional de Blume
19611 37 17 2 Associacao Antonio Vieira - Unisinos, B
263282 37 5 12 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA
Complete listing at https://bgp.nsrc.org/REN/Internet2/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2018 382 319 72 TENET-1, ZA
36914 258 82 3 KENET-AS, KE
327687 165 28 3 RENU, UG
8094 48 48 15 PUKNET, ZA
327700 40 16 1 MoRENet, MZ
37215 37 8 1 MAREN, MW
3208 32 2 1 ARN, DZ
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/Internet2/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 3410 4675 1475 AMAZON-02, US
14618 786 4013 584 AMAZON-AES, US
2907 602 2154 466 SINET-AS Research Organization of Infor
7497 435 180 23 CSTNET-AS-AP Computer Network Informati
2018 382 319 72 TENET-1, ZA
680 284 1919 250 DFN Verein zur Foerderung eines Deutsch
1916 259 192 43 Rede Nacional de Ensino e Pesquisa, BR
36914 258 82 3 KENET-AS, KE
668 217 636 180 DNIC-AS-00668, US
376 202 178 150 RISQ-AS, CA
Complete listing at https://bgp.nsrc.org/REN/Internet2/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
7497 435 412 CSTNET-AS-AP Computer Network Information Cente
2018 382 310 TENET-1, ZA
36914 258 255 KENET-AS, KE
1916 259 216 Rede Nacional de Ensino e Pesquisa, BR
14618 786 202 AMAZON-AES, US
5786 198 197 UPRENET, PR
58647 178 176 KAGAWAU-AS Kagawa University, JP
8895 177 172 ISU Internet Services Unit ISU, SA
327687 165 162 RENU, UG
2907 602 136 SINET-AS Research Organization of Information a
Complete listing at https://bgp.nsrc.org/REN/Internet2/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
29867 UNALLOCATED 64.202.80.0/20 22742 CT-EDU-NET, US
138933 UNALLOCATED 103.137.86.0/24 24490 TEIN2-SG-AP Trans-Eurasia In
394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, US
33008 UNALLOCATED 162.248.66.0/24 11096 FLORIDANET, US
29867 UNALLOCATED 192.160.243.0/24 22742 CT-EDU-NET, US
29867 UNALLOCATED 192.160.244.0/24 22742 CT-EDU-NET, US
394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, US
Complete listing at https://bgp.nsrc.org/REN/Internet2/data-badAS
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
64.186.3.0/24 Origin: 16509 AMAZON-02, US
64.186.3.0/24 Transit: 11537 INTERNET2-RESEARCH-EDU, US
64.202.80.0/20 Origin: 29867 UNASSIGNED
64.202.80.0/20 Transit: 22742 CT-EDU-NET, US
76.76.19.0/24 Origin: 16509 AMAZON-02, US
76.76.19.0/24 Transit: 11537 INTERNET2-RESEARCH-EDU, US
102.36.194.0/23 Origin: 2018 TENET-1, ZA
102.36.194.0/23 Transit: 11537 INTERNET2-RESEARCH-EDU, US
103.137.86.0/24 Origin: 138933 UNASSIGNED
103.137.86.0/24 Transit: 24490 TEIN2-SG-AP Trans-Eurasia Information Ne
Complete listing at https://bgp.nsrc.org/REN/Internet2/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 /9:1 /10:2 /11:3 /12:17
/13:25 /14:58 /15:175 /16:2067 /17:481 /18:472
/19:604 /20:987 /21:1044 /22:1709 /23:1790 /24:13507
/25:90 /26:67 /27:149 /28:7 /29:56 /30:0
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
16509 501 3410 AMAZON-02, US
14618 255 786 AMAZON-AES, US
36914 246 258 KENET-AS, KE
8895 172 177 ISU Internet Services Unit ISU, SA
32440 79 108 LONI, US
23024 52 113 OCDE, US
1 40 122 LVLT-1, US
1916 39 259 Rede Nacional de Ensino e Pesquisa, BR
327700 36 40 MoRENet, MZ
200521 33 56 SEAP-AGE, ES
Complete listing at https://bgp.nsrc.org/REN/Internet2/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2 3:98 4:2 5:17 6:4 8:2
12:1 13:60 14:89 15:96 16:108 18:102
23:48 24:3 31:7 34:2 35:13 38:9
40:1 41:147 42:10 44:8 45:57 46:10
47:1 49:6 50:9 52:842 54:248 58:1
59:19 60:4 61:3 62:12 63:37 64:157
65:13 66:72 67:63 68:18 69:45 70:27
71:16 72:16 74:77 76:48 77:11 78:3
79:10 80:13 81:26 82:7 83:6 84:14
85:43 86:10 87:2 88:1 89:13 91:55
92:2 93:4 94:4 95:2 96:7 97:1
98:13 99:67 101:2 102:31 103:269 104:119
107:1 108:33 109:11 111:16 114:23 115:1
116:10 117:61 118:32 119:18 121:29 122:11
123:8 124:38 125:4 128:87 129:49 130:144
131:62 132:64 133:155 134:107 135:3 136:215
137:149 138:14 139:18 140:55 141:5 142:57
143:28 144:40 145:2 146:132 147:65 148:204
149:16 150:130 151:16 152:148 153:14 154:31
155:85 156:71 157:35 158:43 159:164 160:33
161:38 162:66 163:90 164:22 165:62 166:1
167:21 168:177 169:12 170:141 171:1 172:10
173:23 174:2 175:19 176:12 177:5 178:1
179:13 180:15 181:1 182:1 184:6 185:79
186:3 187:17 188:15 189:3 190:18 191:36
192:1521 193:311 194:132 195:84 196:203 197:163
198:508 199:336 200:306 201:38 202:640 203:440
204:378 205:159 206:208 207:198 208:113 209:148
210:184 211:3 212:170 213:16 214:8 216:166
217:10 218:22 219:6 220:16 222:4 223:4
End of report
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