IPv4 R&E Routing Table Report 18:30 GMT Thu 17 Mar, 2022 BGP Table (R&E) as seen at UbuntuNet Alliance. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/UbuntuNet/ Analysis Summary ---------------- BGP routing table entries examined: 17608 Prefixes after maximum aggregation (per Origin AS): 10169 Deaggregation factor: 1.73 Unique aggregates announced (without unneeded subnets): 11342 Number of IPv4 prefixes with a valid ROA: 3680 Number of IPv4 prefixes with an invalid ROA: 0 Number of IPv4 prefixes with no ROA: 13928 Total ASes present in the Internet Routing Table: 2692 Prefixes per ASN: 6.54 Origin-only ASes present in the Internet Routing Table: 2324 Origin ASes announcing only one prefix: 1083 Transit ASes present in the Internet Routing Table: 368 Transit-only ASes present in the Internet Routing Table: 49 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 15 Max AS path prepend of ASN (211089) 11 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: 38799 Number of 32-bit ASNs visible in the Routing Table: 606 Prefixes from 32-bit ASNs in the Routing Table: 1632 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: 202582272 Equivalent to 12 /8s, 19 /16s and 41 /24s Percentage of available address space announced: 5.5 Percentage of allocated address space announced: 5.5 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: 1707 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4673 Total APNIC prefixes after maximum aggregation: 2295 APNIC Deaggregation factor: 2.04 Prefixes being announced from the APNIC address blocks: 4674 Unique aggregates announced from the APNIC address blocks: 2608 APNIC Region origin ASes present in the Internet Routing Table: 575 APNIC Prefixes per ASN: 8.13 APNIC Region origin ASes announcing only one prefix: 247 APNIC Region transit ASes present in the Internet Routing Table: 60 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 13 Number of APNIC region 32-bit ASNs visible in the Routing Table: 217 Number of APNIC addresses announced to Internet: 46139648 Equivalent to 2 /8s, 192 /16s and 9 /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: 7453 Total ARIN prefixes after maximum aggregation: 4360 ARIN Deaggregation factor: 1.71 Prefixes being announced from the ARIN address blocks: 7465 Unique aggregates announced from the ARIN address blocks: 4878 ARIN Region origin ASes present in the Internet Routing Table: 1184 ARIN Prefixes per ASN: 6.30 ARIN Region origin ASes announcing only one prefix: 438 ARIN Region transit ASes present in the Internet Routing Table: 158 Average ARIN Region AS path length visible: 4.2 Max ARIN Region AS path length visible: 14 Number of ARIN region 32-bit ASNs visible in the Routing Table: 164 Number of ARIN addresses announced to Internet: 91863296 Equivalent to 5 /8s, 121 /16s and 185 /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: 3396 Total RIPE prefixes after maximum aggregation: 2755 RIPE Deaggregation factor: 1.23 Prefixes being announced from the RIPE address blocks: 3383 Unique aggregates announced from the RIPE address blocks: 2740 RIPE Region origin ASes present in the Internet Routing Table: 659 RIPE Prefixes per ASN: 5.13 RIPE Region origin ASes announcing only one prefix: 307 RIPE Region transit ASes present in the Internet Routing Table: 99 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 15 Number of RIPE region 32-bit ASNs visible in the Routing Table: 129 Number of RIPE addresses announced to Internet: 58006784 Equivalent to 3 /8s, 117 /16s and 29 /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: 1330 Total LACNIC prefixes after maximum aggregation: 566 LACNIC Deaggregation factor: 2.35 Prefixes being announced from the LACNIC address blocks: 1333 Unique aggregates announced from the LACNIC address blocks: 821 LACNIC Region origin ASes present in the Internet Routing Table: 169 LACNIC Prefixes per ASN: 7.89 LACNIC Region origin ASes announcing only one prefix: 69 LACNIC Region transit ASes present in the Internet Routing Table: 27 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 12 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 69 Number of LACNIC addresses announced to Internet: 3818496 Equivalent to 0 /8s, 58 /16s and 68 /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: 751 Total AfriNIC prefixes after maximum aggregation: 188 AfriNIC Deaggregation factor: 3.99 Prefixes being announced from the AfriNIC address blocks: 751 Unique aggregates announced from the AfriNIC address blocks: 293 AfriNIC Region origin ASes present in the Internet Routing Table: 51 AfriNIC Prefixes per ASN: 14.73 AfriNIC Region origin ASes announcing only one prefix: 22 AfriNIC Region transit ASes present in the Internet Routing Table: 13 Average AfriNIC Region AS path length visible: 2.5 Max AfriNIC Region AS path length visible: 7 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 27 Number of AfriNIC addresses announced to Internet: 2753536 Equivalent to 0 /8s, 42 /16s and 4 /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 583 2124 458 SINET-AS Research Organization of Infor 7497 432 182 24 CSTNET-AS-AP Computer Network Informati 1237 186 74 135 KREONET-AS-KR KISTI, KR 4538 177 4192 72 ERX-CERNET-BKB China Education and Rese 7575 176 330 123 AARNET-AS-AP Australian Academic and Re 58647 167 18 2 KAGAWAU-AS Kagawa University, JP 55824 128 18 22 NKN-CORE-NW NKN Core Network, IN 4621 79 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/UbuntuNet/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7896 252 51 7 NU-AS, US 376 203 178 152 RISQ-AS, CA 2152 145 507 86 CSUNET-NW, US 18558 135 18 4 NETBLK-RCOEK, US 270 120 329 88 AS270, US 2920 108 34 6 LACOE, US 21976 85 51 18 NJEDGE-NET, US 1736 80 16 1 MU-AS, US 3 77 496 15 MIT-GATEWAYS, US 3477 76 71 45 NOAA-NWAVE, US Complete listing at https://bgp.nsrc.org/REN/UbuntuNet/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 274 1966 241 DFN Verein zur Foerderung eines Deutsch 786 186 1774 183 JANET Jisc Services Limited, GB 8895 141 24 4 ISU Internet Services Unit ISU, SA 559 115 550 106 SWITCH Peering requests: peering@switch 1103 99 1520 86 SURFNET-NL SURFnet, The Netherlands, NL 137 82 677 77 ASGARR Consortium GARR, IT 553 73 449 73 BELWUE BelWue-Koordination, DE 2614 69 30 59 ROEDUNET, RO 2200 66 647 61 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/UbuntuNet/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 156 207 44 Rede Nacional de Ensino e Pesquisa, BR 28391 152 10 66 Universidad Juarez Autonoma de Tabasco, 11340 95 24 54 Red Universitaria Nacional, CL 2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo 52286 54 4 31 Columbus Networks Guatemala, GT 4270 44 16 1 Red de Interconexion Universitaria, AR 61468 41 3 15 CEDIA, EC 28614 38 2 2 Fundacao Universidade Regional de Blume 263282 37 5 12 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA 3596 33 2 2 Universidad Autonoma Metropolitana, MX Complete listing at https://bgp.nsrc.org/REN/UbuntuNet/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 2018 373 319 74 TENET-1, ZA 2561 72 5 31 EUN, EG 8094 50 48 4 PUKNET, ZA 327687 37 28 3 RENU, UG 327700 36 16 1 MoRENet, MZ 36914 29 82 3 KENET-AS, KE 6879 24 2 9 ENSTINET-, EG 37182 17 8 1 TERNET, TZ 37074 13 8 2 UG-AS, GH 37501 11 49 6 UOFS, ZA Complete listing at https://bgp.nsrc.org/REN/UbuntuNet/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 583 2124 458 SINET-AS Research Organization of Infor 7497 432 182 24 CSTNET-AS-AP Computer Network Informati 2018 373 319 74 TENET-1, ZA 680 274 1966 241 DFN Verein zur Foerderung eines Deutsch 7896 252 51 7 NU-AS, US 376 203 178 152 RISQ-AS, CA 786 186 1774 183 JANET Jisc Services Limited, GB 1237 186 74 135 KREONET-AS-KR KISTI, KR 4538 177 4192 72 ERX-CERNET-BKB China Education and Rese 7575 176 330 123 AARNET-AS-AP Australian Academic and Re Complete listing at https://bgp.nsrc.org/REN/UbuntuNet/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 373 299 TENET-1, ZA 7896 252 245 NU-AS, US 58647 167 165 KAGAWAU-AS Kagawa University, JP 8895 141 137 ISU Internet Services Unit ISU, SA 18558 135 131 NETBLK-RCOEK, US 1916 156 112 Rede Nacional de Ensino e Pesquisa, BR 55824 128 106 NKN-CORE-NW NKN Core Network, IN 4538 177 105 ERX-CERNET-BKB China Education and Research Net 2920 108 102 LACOE, US Complete listing at https://bgp.nsrc.org/REN/UbuntuNet/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 22063 UNALLOCATED 153.10.0.0/16 2152 CSUNET-NW, US 22226 UNALLOCATED 156.1.0.0/16 2152 CSUNET-NW, US 19658 UNALLOCATED 199.27.241.0/24 11096 FLORIDANET, US 395514 UNALLOCATED 205.213.88.0/24 2381 WISCNET1-AS, US 394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, US Complete listing at https://bgp.nsrc.org/REN/UbuntuNet/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/UbuntuNet/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: 20965 GEANT The GEANT IP Service, NL Complete listing at https://bgp.nsrc.org/REN/UbuntuNet/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 /14:35 /15:121 /16:1978 /17:385 /18:429 /19:547 /20:829 /21:842 /22:1369 /23:1488 /24:9553 /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 8895 136 141 ISU Internet Services Unit ISU, SA 23024 52 55 OCDE, US 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 327700 32 36 MoRENet, MZ 25977 31 45 HCCS, US 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN 27609 29 45 USC-UNIVERSITY-HOSPITAL, US 32440 29 44 LONI, US 40326 29 33 ECKERD-COLLEGE, US 30220 25 26 SWTELCOOP, US Complete listing at https://bgp.nsrc.org/REN/UbuntuNet/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:3 5:15 8:2 12:1 14:85 18:42 23:9 24:2 31:6 37:6 38:9 40:1 41:61 42:14 44:5 45:44 46:6 47:1 49:10 50:1 52:1 58:7 59:20 60:4 61:3 62:7 63:34 64:48 66:35 67:42 68:8 69:19 70:2 71:1 72:9 74:20 76:33 77:5 78:3 79:10 80:15 81:28 82:5 83:6 84:5 85:38 86:4 87:1 88:1 89:10 91:43 92:1 93:23 94:4 95:4 96:5 97:1 98:2 101:8 102:11 103:298 104:14 106:1 108:8 109:10 110:3 111:19 114:23 116:5 117:61 118:32 119:22 121:28 122:8 123:8 124:39 125:4 128:81 129:176 130:92 131:88 132:58 133:141 134:95 136:3 137:86 138:8 139:4 140:35 141:1 142:41 143:28 144:52 145:1 146:128 147:56 148:191 149:13 150:42 151:6 152:71 153:13 154:26 155:51 156:67 157:26 158:42 159:116 160:25 161:21 162:20 163:57 164:35 165:55 166:2 167:16 168:166 169:10 170:53 171:1 172:2 173:2 175:29 176:8 177:7 179:11 180:21 181:16 182:5 184:4 185:38 186:3 187:17 188:13 189:5 190:49 191:26 192:1395 193:267 194:140 195:83 196:164 197:5 198:462 199:253 200:212 201:38 202:632 203:422 204:314 205:161 206:186 207:161 208:66 209:112 210:180 211:13 212:144 213:5 216:83 217:11 218:22 219:12 220:14 222:5 223:4 End of report