IPv4 R&E Routing Table Report 18:30 GMT Fri 14 Jan, 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: 17494 Prefixes after maximum aggregation (per Origin AS): 10161 Deaggregation factor: 1.72 Unique aggregates announced (without unneeded subnets): 11353 Number of IPv4 prefixes with a valid ROA: 3630 Number of IPv4 prefixes with an invalid ROA: 1 Number of IPv4 prefixes with no ROA: 13863 Total ASes present in the Internet Routing Table: 2684 Prefixes per ASN: 6.52 Origin-only ASes present in the Internet Routing Table: 2317 Origin ASes announcing only one prefix: 1094 Transit ASes present in the Internet Routing Table: 367 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: 14 Max AS path prepend of ASN ( 10497) 11 Prefixes from unregistered ASNs in the Routing Table: 3 Number of instances of unregistered ASNs: 3 Number of 32-bit ASNs allocated by the RIRs: 38301 Number of 32-bit ASNs visible in the Routing Table: 594 Prefixes from 32-bit ASNs in the Routing Table: 1650 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: 202384640 Equivalent to 12 /8s, 16 /16s and 37 /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: 1770 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4525 Total APNIC prefixes after maximum aggregation: 2280 APNIC Deaggregation factor: 1.98 Prefixes being announced from the APNIC address blocks: 4528 Unique aggregates announced from the APNIC address blocks: 2557 APNIC Region origin ASes present in the Internet Routing Table: 558 APNIC Prefixes per ASN: 8.11 APNIC Region origin ASes announcing only one prefix: 244 APNIC Region transit ASes present in the Internet Routing Table: 57 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 13 Number of APNIC region 32-bit ASNs visible in the Routing Table: 210 Number of APNIC addresses announced to Internet: 45947392 Equivalent to 2 /8s, 189 /16s and 26 /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: 7506 Total ARIN prefixes after maximum aggregation: 4373 ARIN Deaggregation factor: 1.72 Prefixes being announced from the ARIN address blocks: 7504 Unique aggregates announced from the ARIN address blocks: 4905 ARIN Region origin ASes present in the Internet Routing Table: 1184 ARIN Prefixes per ASN: 6.34 ARIN Region origin ASes announcing only one prefix: 437 ARIN Region transit ASes present in the Internet Routing Table: 157 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 14 Number of ARIN region 32-bit ASNs visible in the Routing Table: 159 Number of ARIN addresses announced to Internet: 91791104 Equivalent to 5 /8s, 120 /16s and 159 /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: 3380 Total RIPE prefixes after maximum aggregation: 2755 RIPE Deaggregation factor: 1.23 Prefixes being announced from the RIPE address blocks: 3374 Unique aggregates announced from the RIPE address blocks: 2774 RIPE Region origin ASes present in the Internet Routing Table: 672 RIPE Prefixes per ASN: 5.02 RIPE Region origin ASes announcing only one prefix: 321 RIPE Region transit ASes present in the Internet Routing Table: 102 Average RIPE Region AS path length visible: 3.9 Max RIPE Region AS path length visible: 14 Number of RIPE region 32-bit ASNs visible in the Routing Table: 131 Number of RIPE addresses announced to Internet: 58067200 Equivalent to 3 /8s, 118 /16s and 9 /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: 1350 Total LACNIC prefixes after maximum aggregation: 563 LACNIC Deaggregation factor: 2.40 Prefixes being announced from the LACNIC address blocks: 1356 Unique aggregates announced from the LACNIC address blocks: 822 LACNIC Region origin ASes present in the Internet Routing Table: 169 LACNIC Prefixes per ASN: 8.02 LACNIC Region origin ASes announcing only one prefix: 72 LACNIC Region transit ASes present in the Internet Routing Table: 26 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: 3844864 Equivalent to 0 /8s, 58 /16s and 171 /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: 730 Total AfriNIC prefixes after maximum aggregation: 187 AfriNIC Deaggregation factor: 3.90 Prefixes being announced from the AfriNIC address blocks: 730 Unique aggregates announced from the AfriNIC address blocks: 293 AfriNIC Region origin ASes present in the Internet Routing Table: 49 AfriNIC Prefixes per ASN: 14.90 AfriNIC Region origin ASes announcing only one prefix: 20 AfriNIC Region transit ASes present in the Internet Routing Table: 12 Average AfriNIC Region AS path length visible: 2.5 Max AfriNIC Region AS path length visible: 6 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 25 Number of AfriNIC addresses announced to Internet: 2733568 Equivalent to 0 /8s, 41 /16s and 182 /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 571 2157 457 SINET-AS Research Organization of Infor 7497 432 182 24 CSTNET-AS-AP Computer Network Informati 1237 184 74 135 KREONET-AS-KR KISTI, KR 7575 177 330 123 AARNET-AS-AP Australian Academic and Re 4538 176 4192 72 ERX-CERNET-BKB China Education and Rese 58647 165 18 2 KAGAWAU-AS Kagawa University, JP 55824 129 19 22 NKN-CORE-NW NKN Core Network, IN 4621 78 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 250 51 7 NU-AS, US 376 203 178 152 RISQ-AS, CA 2152 144 507 86 CSUNET-NW, US 18558 134 18 4 NETBLK-RCOEK, US 270 119 329 88 AS270, US 2920 108 34 6 LACOE, US 21976 85 51 18 NJEDGE-NET, US 1736 78 16 1 MU-AS, US 3 77 496 15 MIT-GATEWAYS, US 3477 73 71 43 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 1948 241 DFN Verein zur Foerderung eines Deutsch 786 186 1774 183 JANET Jisc Services Limited, GB 8895 143 24 4 ISU Internet Services Unit ISU, SA 559 115 550 106 SWITCH Peering requests: peering@switch 1103 98 1520 85 SURFNET-NL SURFnet, The Netherlands, NL 137 82 677 77 ASGARR Consortium GARR, IT 553 72 449 72 BELWUE BelWue-Koordination, DE 2200 67 647 61 FR-RENATER Reseau National de telecommu 2614 60 33 57 ROEDUNET, RO 1930 57 81 52 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 175 207 40 Rede Nacional de Ensino e Pesquisa, BR 28391 152 10 66 Universidad Juarez Autonoma de Tabasco, 11340 95 24 55 Red Universitaria Nacional, CL 2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo 52286 54 4 31 Columbus Networks Guatemala, GT 4270 43 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 351 319 74 TENET-1, ZA 2561 72 5 31 EUN, EG 8094 50 48 4 PUKNET, ZA 327700 45 16 1 MoRENet, MZ 327687 38 28 3 RENU, UG 36914 30 82 3 KENET-AS, KE 6879 24 2 9 ENSTINET-, EG 37074 13 8 2 UG-AS, GH 37182 12 8 1 TERNET, TZ 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 571 2157 457 SINET-AS Research Organization of Infor 7497 432 182 24 CSTNET-AS-AP Computer Network Informati 2018 351 319 74 TENET-1, ZA 680 274 1948 241 DFN Verein zur Foerderung eines Deutsch 7896 250 51 7 NU-AS, US 376 203 178 152 RISQ-AS, CA 786 186 1774 183 JANET Jisc Services Limited, GB 1237 184 74 135 KREONET-AS-KR KISTI, KR 7575 177 330 123 AARNET-AS-AP Australian Academic and Re 4538 176 4192 72 ERX-CERNET-BKB China Education and Rese 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 351 277 TENET-1, ZA 7896 250 243 NU-AS, US 58647 165 163 KAGAWAU-AS Kagawa University, JP 8895 143 139 ISU Internet Services Unit ISU, SA 1916 175 135 Rede Nacional de Ensino e Pesquisa, BR 18558 134 130 NETBLK-RCOEK, US 55824 129 107 NKN-CORE-NW NKN Core Network, IN 4538 176 104 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 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 /15:122 /16:1976 /17:379 /18:425 /19:544 /20:828 /21:848 /22:1351 /23:1463 /24:9491 /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 138 143 ISU Internet Services Unit ISU, SA 23024 53 56 OCDE, US 327700 39 45 MoRENet, MZ 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 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 200521 29 49 SEAP-AGE, ES Complete listing at https://bgp.nsrc.org/REN/UbuntuNet/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:4 5:15 8:2 9:1 12:1 14:85 18:42 23:9 24:2 31:6 37:6 38:9 40:1 41:62 42:13 44:5 45:44 46:6 47:1 49:8 50:1 52:1 58:7 59:4 60:4 61:3 62:7 63:35 64:47 66:35 67:42 68:8 69:21 71:1 72:42 74:20 76:33 77:7 78:3 79:10 80:16 81:28 82:5 83:7 84:5 85:33 86:7 87:1 88:1 89:10 91:47 92:1 93:19 94:4 95:4 96:5 97:1 98:2 101:8 102:13 103:287 104:14 106:1 108:8 109:10 110:3 111:19 112:4 114:24 116:5 117:61 119:22 121:27 123:8 124:39 125:4 128:86 129:175 130:92 131:82 132:58 133:139 134:96 136:3 137:79 138:8 139:4 140:35 141:2 142:41 143:28 144:52 145:1 146:128 147:57 148:191 149:15 150:35 151:6 152:71 153:11 154:26 155:51 156:67 157:26 158:42 159:116 160:25 161:16 162:20 163:59 164:39 165:55 166:2 167:16 168:161 169:10 170:53 171:1 172:2 173:2 175:31 176:8 177:6 178:1 179:11 180:21 181:12 182:5 184:3 185:41 186:3 187:17 188:13 189:5 190:49 191:30 192:1396 193:249 194:145 195:92 196:149 197:6 198:456 199:251 200:219 201:38 202:605 203:412 204:316 205:161 206:186 207:164 208:59 209:111 210:181 211:13 212:171 213:5 216:84 217:15 218:25 219:12 220:16 222:5 223:3 End of report