[REN-BGP-stats-all] IPv4 R&E Routing Table Report - AIT (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Sun Sep 17 20:25:42 UTC 2023
IPv4 R&E Routing Table Report 20:25 GMT Sun 17 Sep, 2023
IPv4 BGP Table (R&E) as seen at AIT.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/AIT/
Analysis Summary
----------------
BGP routing table entries examined: 25762
Prefixes after maximum aggregation (per Origin AS): 12373
Deaggregation factor: 2.08
Unique aggregates announced (without unneeded subnets): 13747
Number of IPv4 prefixes with a valid ROA: 9381
Number of IPv4 prefixes with an invalid ROA: 187
Number of IPv4 prefixes with no ROA: 16194
Total ASes present in the Internet Routing Table: 3198
Prefixes per ASN: 8.06
Origin-only ASes present in the Internet Routing Table: 2758
Origin ASes announcing only one prefix: 1208
Transit ASes present in the Internet Routing Table: 440
Transit-only ASes present in the Internet Routing Table: 81
Paths with bogon ASNs present in the IPv4 Routing Table: 5
Average AS path length visible in the Internet Routing Table: 6.2
Max AS path length visible: 19
Max AS path prepend of ASN (395156) 12
Prefixes from unregistered ASNs in the Routing Table: 4
Number of instances of unregistered ASNs: 4
Number of 32-bit ASNs allocated by the RIRs: 42637
Number of 32-bit ASNs visible in the Routing Table: 861
Prefixes from 32-bit ASNs in the Routing Table: 3996
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: 3
Number of addresses announced to Internet: 209996800
Equivalent to 12 /8s, 132 /16s and 76 /24s
Percentage of available address space announced: 5.7
Percentage of allocated address space announced: 5.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 99.5
Total number of prefixes smaller than registry allocations: 2570
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 11380
Total APNIC prefixes after maximum aggregation: 3961
APNIC Deaggregation factor: 2.87
Prefixes being announced from the APNIC address blocks: 11193
Unique aggregates announced from the APNIC address blocks: 4399
APNIC Region origin ASes present in the Internet Routing Table: 915
APNIC Prefixes per ASN: 12.23
APNIC Region origin ASes announcing only one prefix: 357
APNIC Region transit ASes present in the Internet Routing Table: 110
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC region 32-bit ASNs visible in the Routing Table: 421
Number of APNIC addresses announced to Internet: 51607808
Equivalent to 3 /8s, 19 /16s and 121 /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: 8165
Total ARIN prefixes after maximum aggregation: 4747
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 8280
Unique aggregates announced from the ARIN address blocks: 5332
ARIN Region origin ASes present in the Internet Routing Table: 1276
ARIN Prefixes per ASN: 6.49
ARIN Region origin ASes announcing only one prefix: 451
ARIN Region transit ASes present in the Internet Routing Table: 167
Average ARIN Region AS path length visible: 7.9
Max ARIN Region AS path length visible: 19
Number of ARIN region 32-bit ASNs visible in the Routing Table: 198
Number of ARIN addresses announced to Internet: 93449984
Equivalent to 5 /8s, 145 /16s and 239 /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: 3692
Total RIPE prefixes after maximum aggregation: 2911
RIPE Deaggregation factor: 1.27
Prefixes being announced from the RIPE address blocks: 3753
Unique aggregates announced from the RIPE address blocks: 3000
RIPE Region origin ASes present in the Internet Routing Table: 706
RIPE Prefixes per ASN: 5.32
RIPE Region origin ASes announcing only one prefix: 309
RIPE Region transit ASes present in the Internet Routing Table: 111
Average RIPE Region AS path length visible: 7.0
Max RIPE Region AS path length visible: 15
Number of RIPE region 32-bit ASNs visible in the Routing Table: 148
Number of RIPE addresses announced to Internet: 57972992
Equivalent to 3 /8s, 116 /16s and 153 /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
196608-216475
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: 1459
Total LACNIC prefixes after maximum aggregation: 576
LACNIC Deaggregation factor: 2.53
Prefixes being announced from the LACNIC address blocks: 1457
Unique aggregates announced from the LACNIC address blocks: 779
LACNIC Region origin ASes present in the Internet Routing Table: 167
LACNIC Prefixes per ASN: 8.72
LACNIC Region origin ASes announcing only one prefix: 65
LACNIC Region transit ASes present in the Internet Routing Table: 26
Average LACNIC Region AS path length visible: 9.0
Max LACNIC Region AS path length visible: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 68
Number of LACNIC addresses announced to Internet: 4169472
Equivalent to 0 /8s, 63 /16s and 159 /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: 1062
Total AfriNIC prefixes after maximum aggregation: 174
AfriNIC Deaggregation factor: 6.10
Prefixes being announced from the AfriNIC address blocks: 1076
Unique aggregates announced from the AfriNIC address blocks: 234
AfriNIC Region origin ASes present in the Internet Routing Table: 50
AfriNIC Prefixes per ASN: 21.52
AfriNIC Region origin ASes announcing only one prefix: 26
AfriNIC Region transit ASes present in the Internet Routing Table: 9
Average AfriNIC Region AS path length visible: 7.2
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: 2730496
Equivalent to 0 /8s, 41 /16s and 170 /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
7470 684 363 73 TRUEINTERNET-AS-AP TRUE INTERNET Co.,Lt
2907 590 2162 463 SINET-AS Research Organization of Infor
131090 584 55 9 CAT-IDC-4BYTENET-AS-AP CAT TELECOM Publ
4621 512 73 18 UNINET-AS-AP UNINET-, TH
45458 488 38 44 SBN-AWN-AS-02-AP SBN-ISPAWN-ISP and SBN
9931 470 70 33 CAT-AP The Communication Authoity of Th
7497 435 180 23 CSTNET-AS-AP Computer Network Informati
4618 367 55 6 INET-TH-AS Internet Thailand Company Li
131293 273 23 64 TOT-LLI-AS-AP TOT Public Company Limite
132280 258 24 24 SYMPHONY-AP-TH Symphony Communication T
Complete listing at https://bgp.nsrc.org/REN/AIT/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2152 337 507 94 CSUNET-NW, US
668 202 635 171 DNIC-AS-00668, US
376 201 178 150 RISQ-AS, CA
5786 196 16 1 UPRENET, PR
18558 141 18 4 NETBLK-RCOEK, US
81 127 521 30 NCREN, US
23024 113 7 17 OCDE, US
2920 106 34 7 LACOE, US
21976 82 51 18 NJEDGE-NET, US
1736 79 16 1 MU-AS, US
Complete listing at https://bgp.nsrc.org/REN/AIT/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
680 285 1903 249 DFN Verein zur Foerderung eines Deutsch
786 189 1767 182 JANET Jisc Services Limited, GB
8895 136 24 5 ISU Internet Services Unit ISU, SA
559 113 533 105 SWITCH Peering requests: peering at switch
1103 95 1502 83 SURFNET-NL SURFnet, The Netherlands, NL
2614 95 27 74 ROEDUNET, RO
137 94 677 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 62 598 58 FR-RENATER Reseau National de telecommu
Complete listing at https://bgp.nsrc.org/REN/AIT/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1916 221 176 42 Rede Nacional de Ensino e Pesquisa, BR
28391 153 10 67 Universidad Juarez Autonoma de Tabasco,
11340 99 24 51 Red Universitaria Nacional, CL
271640 72 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR
2715 58 86 38 Fundacao Carlos Chagas Filho de Amparo
4270 48 16 1 Red de Interconexion Universitaria, AR
19611 48 17 2 Associacao Antonio Vieira - Unisinos, B
61468 43 3 14 CEDIA, EC
28614 38 2 2 Fundacao Universidade Regional de Blume
3596 34 4 3 Universidad Autonoma Metropolitana, MX
Complete listing at https://bgp.nsrc.org/REN/AIT/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2018 381 319 71 TENET-1, ZA
36914 253 82 3 KENET-AS, KE
327687 166 28 3 RENU, UG
8094 47 48 18 PUKNET, ZA
327700 42 16 1 MoRENet, MZ
3208 32 2 1 ARN, DZ
6879 24 2 9 ENSTINET-, EG
37074 14 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/AIT/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
7470 684 363 73 TRUEINTERNET-AS-AP TRUE INTERNET Co.,Lt
2907 590 2162 463 SINET-AS Research Organization of Infor
131090 584 55 9 CAT-IDC-4BYTENET-AS-AP CAT TELECOM Publ
4621 512 73 18 UNINET-AS-AP UNINET-, TH
45458 488 38 44 SBN-AWN-AS-02-AP SBN-ISPAWN-ISP and SBN
9931 470 70 33 CAT-AP The Communication Authoity of Th
7497 435 180 23 CSTNET-AS-AP Computer Network Informati
2018 381 319 71 TENET-1, ZA
4618 367 55 6 INET-TH-AS Internet Thailand Company Li
2152 337 507 94 CSUNET-NW, US
Complete listing at https://bgp.nsrc.org/REN/AIT/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
131090 584 575 CAT-IDC-4BYTENET-AS-AP CAT TELECOM Public Compa
4621 512 494 UNINET-AS-AP UNINET-, TH
45458 488 444 SBN-AWN-AS-02-AP SBN-ISPAWN-ISP and SBN-NIXAWN-
9931 470 437 CAT-AP The Communication Authoity of Thailand,
7497 435 412 CSTNET-AS-AP Computer Network Information Cente
4618 367 361 INET-TH-AS Internet Thailand Company Limited, T
2018 381 310 TENET-1, ZA
36914 253 250 KENET-AS, KE
2152 337 243 CSUNET-NW, US
132280 258 234 SYMPHONY-AP-TH Symphony Communication Thailand
Complete listing at https://bgp.nsrc.org/REN/AIT/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
138219 UNALLOCATED 103.207.69.0/24 23884 PROENNET-AS Proen Corp Publi
394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, US
33008 UNALLOCATED 162.248.66.0/24 11096 FLORIDANET, US
394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, US
Complete listing at https://bgp.nsrc.org/REN/AIT/data-badAS
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
134.208.0.0/16 Origin: 1659 ERX-TANET-ASN1 Taiwan Academic Network T
134.208.0.0/16 Transit: 9264 ASNET Academia Sinica, TW
192.31.196.0/24 Origin: 112 RESERVED, ZZ
192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL
202.58.231.0/24 Origin: 134096 EHEALTHNSW-AS-AP eHealth NSW, AU
202.58.231.0/24 Transit: 7575 AARNET-AS-AP Australian Academic and Res
Complete listing at https://bgp.nsrc.org/REN/AIT/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 /11:1 /12:10
/13:18 /14:33 /15:123 /16:2030 /17:495 /18:552
/19:669 /20:1108 /21:1031 /22:2097 /23:2058 /24:15381
/25:2 /26:3 /27:3 /28:3 /29:12 /30:39
/31:31 /32:60
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
36914 242 253 KENET-AS, KE
4621 147 512 UNINET-AS-AP UNINET-, TH
132280 139 258 SYMPHONY-AP-TH Symphony Communication Thailand
8895 131 136 ISU Internet Services Unit ISU, SA
23024 52 113 OCDE, US
134729 48 64 JPTL-AS-AP JOINT POWER TECHNOLOGY LIMITED, HK
32440 37 59 LONI, US
327700 37 42 MoRENet, MZ
2152 35 337 CSUNET-NW, US
200521 33 56 SEAP-AGE, ES
Complete listing at https://bgp.nsrc.org/REN/AIT/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:133 2:1 5:15 6:4 8:4 12:1
14:92 16:1 18:1 23:25 24:4 27:72
31:7 35:2 37:5 38:9 40:1 41:117
42:10 43:33 44:6 45:90 46:5 47:5
49:339 50:4 52:1 58:105 59:22 60:4
61:328 62:13 63:37 64:57 65:33 66:53
67:43 68:9 69:19 70:2 71:1 72:7
74:47 76:41 77:9 78:3 79:10 80:12
81:28 82:6 83:31 84:11 85:42 86:10
87:1 89:10 90:1 91:51 92:3 93:4
94:4 95:18 96:31 97:2 98:2 101:17
102:30 103:595 104:77 106:67 107:4 108:13
109:9 110:397 111:45 112:27 113:38 114:26
115:35 116:69 117:71 118:117 119:230 121:28
122:229 123:9 124:46 125:14 128:91 129:49
130:90 131:69 132:60 133:152 134:310 136:196
137:130 138:11 139:11 140:46 141:11 142:38
143:24 144:35 145:3 146:144 147:76 148:200
149:13 150:50 151:12 152:148 153:14 154:63
155:63 156:69 157:26 158:34 159:240 160:29
161:49 162:27 163:100 164:65 165:50 166:1
167:19 168:122 169:7 170:75 171:140 172:5
173:7 174:2 175:26 176:8 177:5 179:12
180:71 181:2 182:17 183:9 184:17 185:72
186:3 187:17 188:15 189:3 190:19 191:16
192:1379 193:303 194:146 195:90 196:202 197:166
198:545 199:285 200:338 201:38 202:1035 203:1187
204:374 205:145 206:191 207:216 208:71 209:163
210:267 211:16 212:169 213:7 214:8 216:85
217:13 218:23 219:5 220:16 221:36 222:2
223:82
End of report
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