Global R&E Routing Table Report 17:00 GMT Sat 29 May, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/UbuntuNet/ Analysis Summary ---------------- BGP routing table entries examined: 18075 Prefixes after maximum aggregation (per Origin AS): 10173 Deaggregation factor: 1.78 Unique aggregates announced (without unneeded subnets): 11436 Total ASes present in the Internet Routing Table: 2702 Prefixes per ASN: 6.69 Origin-only ASes present in the Internet Routing Table: 2312 Origin ASes announcing only one prefix: 1091 Transit ASes present in the Internet Routing Table: 390 Transit-only ASes present in the Internet Routing Table: 67 Average AS path length visible in the Internet Routing Table: 4.2 Max AS path length visible: 16 Max AS path prepend of ASN ( 10497) 11 Prefixes from unregistered ASNs in the Routing Table: 15 Number of instances of unregistered ASNs: 15 Number of 32-bit ASNs allocated by the RIRs: 36159 Number of 32-bit ASNs visible in the Routing Table: 585 Prefixes from 32-bit ASNs in the Routing Table: 1675 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: 202824960 Equivalent to 12 /8s, 22 /16s and 221 /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: 2087 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4702 Total APNIC prefixes after maximum aggregation: 2355 APNIC Deaggregation factor: 2.00 Prefixes being announced from the APNIC address blocks: 4704 Unique aggregates announced from the APNIC address blocks: 2708 APNIC Region origin ASes present in the Internet Routing Table: 577 APNIC Prefixes per ASN: 8.15 APNIC Region origin ASes announcing only one prefix: 247 APNIC Region transit ASes present in the Internet Routing Table: 63 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 14 Number of APNIC region 32-bit ASNs visible in the Routing Table: 217 Number of APNIC addresses announced to Internet: 46312960 Equivalent to 2 /8s, 194 /16s and 174 /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, 131072-147769 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: 7457 Total ARIN prefixes after maximum aggregation: 4323 ARIN Deaggregation factor: 1.72 Prefixes being announced from the ARIN address blocks: 7476 Unique aggregates announced from the ARIN address blocks: 4878 ARIN Region origin ASes present in the Internet Routing Table: 1168 ARIN Prefixes per ASN: 6.40 ARIN Region origin ASes announcing only one prefix: 431 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: 16 Number of ARIN region 32-bit ASNs visible in the Routing Table: 143 Number of ARIN addresses announced to Internet: 91752960 Equivalent to 5 /8s, 120 /16s and 10 /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: 3371 Total RIPE prefixes after maximum aggregation: 2748 RIPE Deaggregation factor: 1.23 Prefixes being announced from the RIPE address blocks: 3363 Unique aggregates announced from the RIPE address blocks: 2747 RIPE Region origin ASes present in the Internet Routing Table: 675 RIPE Prefixes per ASN: 4.98 RIPE Region origin ASes announcing only one prefix: 323 RIPE Region transit ASes present in the Internet Routing Table: 110 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: 129 Number of RIPE addresses announced to Internet: 58210048 Equivalent to 3 /8s, 120 /16s and 55 /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: 1337 Total LACNIC prefixes after maximum aggregation: 547 LACNIC Deaggregation factor: 2.44 Prefixes being announced from the LACNIC address blocks: 1337 Unique aggregates announced from the LACNIC address blocks: 804 LACNIC Region origin ASes present in the Internet Routing Table: 166 LACNIC Prefixes per ASN: 8.05 LACNIC Region origin ASes announcing only one prefix: 70 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: 74 Number of LACNIC addresses announced to Internet: 3869440 Equivalent to 0 /8s, 59 /16s and 11 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-272796 + 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: 1193 Total AfriNIC prefixes after maximum aggregation: 186 AfriNIC Deaggregation factor: 6.41 Prefixes being announced from the AfriNIC address blocks: 1193 Unique aggregates announced from the AfriNIC address blocks: 297 AfriNIC Region origin ASes present in the Internet Routing Table: 46 AfriNIC Prefixes per ASN: 25.93 AfriNIC Region origin ASes announcing only one prefix: 20 AfriNIC Region transit ASes present in the Internet Routing Table: 11 Average AfriNIC Region AS path length visible: 2.6 Max AfriNIC Region AS path length visible: 6 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 22 Number of AfriNIC addresses announced to Internet: 2679040 Equivalent to 0 /8s, 40 /16s and 225 /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 607 2155 455 SINET-AS Research Organization of Infor 7497 435 213 26 CSTNET-AS-AP Computer Network Informati 1237 188 75 137 KREONET-AS-KR KISTI, KR 7575 181 331 128 AARNET-AS-AP Australian Academic and Re 4538 167 4192 72 ERX-CERNET-BKB China Education and Rese 58647 164 18 2 KAGAWAU-AS Kagawa University, JP 55824 127 18 21 NKN-CORE-NW NKN Core Network, IN 4621 82 37 11 UNINET-AS-AP UNINET-, TH 23570 59 5 11 INCHEON-AS-KR UNIVERSITY OF INCHEON, KR 24151 56 4 21 CNNIC-CRITICAL-AP China Internet Networ 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 245 51 7 NU-AS, US 376 235 180 158 RISQ-AS, CA 2152 158 507 91 CSUNET-NW, US 18558 138 18 4 NETBLK-RCOEK, US 270 117 297 87 AS270, US 2920 109 34 6 LACOE, US 21976 86 51 18 NJEDGE-NET, US 22742 86 62 44 CT-EDU-NET, US 1736 80 16 1 MU-AS, US 3 78 528 13 MIT-GATEWAYS, 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 680 273 1996 235 DFN Verein zur Foerderung eines Deutsch 786 187 1787 185 JANET Jisc Services Limited, GB 8895 140 24 4 ISU Internet Services Unit (ISU), SA 559 116 550 107 SWITCH Peering requests: (peering@switc 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 66 647 61 FR-RENATER Reseau National de telecommu 2614 62 32 59 ROEDUNET, RO 1930 56 82 51 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 178 207 41 Associacao Rede Nacional de Ensino e Pe 28391 152 10 66 Universidad Juarez Autonoma de Tabasco, 11340 94 24 54 Red Universitaria Nacional, CL 2715 60 102 40 Fundacao Carlos Chagas Filho de Amparo 4270 44 16 1 Red de Interconexion Universitaria, AR 19611 44 17 2 Associacao Antonio Vieira - Unisinos, B 61468 41 3 15 CEDIA, EC 28614 38 2 2 Fundacao Universidade Regional de Blume 263282 35 4 10 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA 28571 34 9 19 UNIVERSIDADE DE SAO PAULO, BR 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 36914 410 82 3 KENET-AS, KE 2018 324 319 74 TENET-1, ZA 327687 139 28 3 RENU, UG 2561 74 5 34 EUN, EG 8094 55 48 4 PUKNET, ZA 327700 39 16 1 MoRENet, MZ 37215 29 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 37074 11 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 607 2155 455 SINET-AS Research Organization of Infor 7497 435 213 26 CSTNET-AS-AP Computer Network Informati 36914 410 82 3 KENET-AS, KE 2018 324 319 74 TENET-1, ZA 680 273 1996 235 DFN Verein zur Foerderung eines Deutsch 7896 245 51 7 NU-AS, US 376 235 180 158 RISQ-AS, CA 1237 188 75 137 KREONET-AS-KR KISTI, KR 786 187 1787 185 JANET Jisc Services Limited, GB 7575 181 331 128 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 435 409 CSTNET-AS-AP Computer Network Information Cente 36914 410 407 KENET-AS, KE 2018 324 250 TENET-1, ZA 7896 245 238 NU-AS, US 58647 164 162 KAGAWAU-AS Kagawa University, JP 1916 178 137 Associacao Rede Nacional de Ensino e Pesquisa, 8895 140 136 ISU Internet Services Unit (ISU), SA 327687 139 136 RENU, UG 18558 138 134 NETBLK-RCOEK, US 55824 127 106 NKN-CORE-NW NKN Core Network, IN 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 36843 UNALLOCATED 64.56.80.0/23 11096 FLORIDANET, US 19658 UNALLOCATED 65.205.131.0/24 11096 FLORIDANET, US 36843 UNALLOCATED 108.59.20.0/24 11096 FLORIDANET, US 36843 UNALLOCATED 108.59.23.0/24 11096 FLORIDANET, US 36843 UNALLOCATED 131.91.183.0/24 11096 FLORIDANET, US 36843 UNALLOCATED 131.91.252.0/22 11096 FLORIDANET, US 36843 UNALLOCATED 146.201.218.0/24 11096 FLORIDANET, US 36843 UNALLOCATED 146.201.219.0/24 11096 FLORIDANET, US 22063 UNALLOCATED 153.10.0.0/16 2152 CSUNET-NW, US 36843 UNALLOCATED 162.223.23.0/24 11096 FLORIDANET, US Complete listing at https://bgp.nsrc.org/REN/UbuntuNet/data-badAS Prefixes from private and non-routed address space (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-dsua Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 192.31.196.0/24 Origin: 112 UNASSIGNED Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL 192.88.99.0/24 Origin: 1103 SURFNET-NL SURFnet, The Netherlands, NL Transit: 11537 INTERNET2-RESEARCH-EDU, US 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 /13:19 /14:36 /15:117 /16:1984 /17:373 /18:417 /19:569 /20:856 /21:880 /22:1396 /23:1473 /24:9941 /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 384 410 KENET-AS, KE 8895 135 140 ISU Internet Services Unit (ISU), SA 23024 53 56 OCDE, US 327700 33 39 MoRENet, MZ 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 25977 31 45 HCCS, US 27609 29 45 USC-UNIVERSITY-HOSPITAL, US 32440 29 43 LONI, US 40326 29 33 ECKERD-COLLEGE, US 263282 28 35 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN 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 12:1 14:84 18:41 23:5 24:5 31:6 37:6 38:9 40:1 41:237 42:30 44:5 45:59 46:7 47:1 49:10 50:1 52:1 58:4 59:20 60:4 61:4 62:7 63:34 64:46 65:1 66:38 67:43 68:8 69:17 71:1 72:11 74:19 76:32 77:5 78:3 79:10 80:14 81:32 82:4 83:8 84:9 85:34 86:7 87:1 88:1 89:10 91:47 92:1 93:12 94:4 95:4 96:5 97:1 98:2 101:7 102:9 103:300 104:10 106:1 108:8 109:8 110:3 111:19 112:4 114:23 115:1 116:5 117:63 118:35 119:19 121:30 122:8 123:8 124:40 125:13 128:79 129:181 130:91 131:89 132:60 133:137 134:91 136:2 137:149 138:9 139:4 140:33 141:2 142:43 143:34 144:53 146:125 147:61 148:159 149:13 150:36 151:5 152:72 153:11 154:24 155:52 156:64 157:25 158:45 159:115 160:26 161:16 162:17 163:60 164:39 165:14 166:1 167:15 168:124 169:9 170:50 171:1 172:1 173:2 175:32 176:8 177:5 178:1 179:12 180:21 181:11 182:5 184:5 185:40 186:2 187:17 188:13 189:6 190:44 191:35 192:1399 193:249 194:145 195:101 196:169 197:197 198:465 199:244 200:228 201:38 202:592 203:420 204:345 205:172 206:182 207:166 208:57 209:111 210:185 211:14 212:165 213:4 216:64 217:16 218:26 219:14 220:24 222:4 223:2 End of report