Global R&E Routing Table Report 18:00 GMT Sat 20 Nov, 2021 BGP Table (R&E) as seen at MARWAN. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/MARWAN/ Analysis Summary ---------------- BGP routing table entries examined: 14283 Prefixes after maximum aggregation (per Origin AS): 8244 Deaggregation factor: 1.73 Unique aggregates announced (without unneeded subnets): 9088 Total ASes present in the Internet Routing Table: 2144 Prefixes per ASN: 6.66 Origin-only ASes present in the Internet Routing Table: 1845 Origin ASes announcing only one prefix: 877 Transit ASes present in the Internet Routing Table: 299 Transit-only ASes present in the Internet Routing Table: 32 Average AS path length visible in the Internet Routing Table: 5.5 Max AS path length visible: 15 Max AS path prepend of ASN ( 5474) 11 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: 37875 Number of 32-bit ASNs visible in the Routing Table: 488 Prefixes from 32-bit ASNs in the Routing Table: 1391 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: 0 Number of addresses announced to Internet: 176147904 Equivalent to 10 /8s, 127 /16s and 205 /24s Percentage of available address space announced: 4.8 Percentage of allocated address space announced: 4.8 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: 1613 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 3908 Total APNIC prefixes after maximum aggregation: 2052 APNIC Deaggregation factor: 1.90 Prefixes being announced from the APNIC address blocks: 3910 Unique aggregates announced from the APNIC address blocks: 2265 APNIC Region origin ASes present in the Internet Routing Table: 460 APNIC Prefixes per ASN: 8.50 APNIC Region origin ASes announcing only one prefix: 193 APNIC Region transit ASes present in the Internet Routing Table: 48 Average APNIC Region AS path length visible: 5.2 Max APNIC Region AS path length visible: 13 Number of APNIC region 32-bit ASNs visible in the Routing Table: 175 Number of APNIC addresses announced to Internet: 44670784 Equivalent to 2 /8s, 169 /16s and 159 /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: 5307 Total ARIN prefixes after maximum aggregation: 3138 ARIN Deaggregation factor: 1.69 Prefixes being announced from the ARIN address blocks: 5318 Unique aggregates announced from the ARIN address blocks: 3526 ARIN Region origin ASes present in the Internet Routing Table: 850 ARIN Prefixes per ASN: 6.26 ARIN Region origin ASes announcing only one prefix: 308 ARIN Region transit ASes present in the Internet Routing Table: 114 Average ARIN Region AS path length visible: 6.0 Max ARIN Region AS path length visible: 14 Number of ARIN region 32-bit ASNs visible in the Routing Table: 110 Number of ARIN addresses announced to Internet: 70161408 Equivalent to 4 /8s, 46 /16s and 148 /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: 3097 Total RIPE prefixes after maximum aggregation: 2468 RIPE Deaggregation factor: 1.25 Prefixes being announced from the RIPE address blocks: 3090 Unique aggregates announced from the RIPE address blocks: 2568 RIPE Region origin ASes present in the Internet Routing Table: 604 RIPE Prefixes per ASN: 5.12 RIPE Region origin ASes announcing only one prefix: 295 RIPE Region transit ASes present in the Internet Routing Table: 96 Average RIPE Region AS path length visible: 4.7 Max RIPE Region AS path length visible: 15 Number of RIPE region 32-bit ASNs visible in the Routing Table: 119 Number of RIPE addresses announced to Internet: 55663840 Equivalent to 3 /8s, 81 /16s and 92 /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: 1044 Total LACNIC prefixes after maximum aggregation: 421 LACNIC Deaggregation factor: 2.48 Prefixes being announced from the LACNIC address blocks: 1042 Unique aggregates announced from the LACNIC address blocks: 500 LACNIC Region origin ASes present in the Internet Routing Table: 145 LACNIC Prefixes per ASN: 7.19 LACNIC Region origin ASes announcing only one prefix: 58 LACNIC Region transit ASes present in the Internet Routing Table: 22 Average LACNIC Region AS path length visible: 6.1 Max LACNIC Region AS path length visible: 14 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 59 Number of LACNIC addresses announced to Internet: 2996128 Equivalent to 0 /8s, 45 /16s and 183 /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: 923 Total AfriNIC prefixes after maximum aggregation: 161 AfriNIC Deaggregation factor: 5.73 Prefixes being announced from the AfriNIC address blocks: 922 Unique aggregates announced from the AfriNIC address blocks: 229 AfriNIC Region origin ASes present in the Internet Routing Table: 50 AfriNIC Prefixes per ASN: 18.44 AfriNIC Region origin ASes announcing only one prefix: 23 AfriNIC Region transit ASes present in the Internet Routing Table: 12 Average AfriNIC Region AS path length visible: 5.4 Max AfriNIC Region AS path length visible: 10 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 25 Number of AfriNIC addresses announced to Internet: 2655744 Equivalent to 0 /8s, 40 /16s and 134 /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 619 2156 457 SINET-AS Research Organization of Infor 7497 423 177 19 CSTNET-AS-AP Computer Network Informati 1237 188 74 135 KREONET-AS-KR KISTI, KR 7575 176 329 122 AARNET-AS-AP Australian Academic and Re 58647 176 18 2 KAGAWAU-AS Kagawa University, JP 4538 172 4192 72 ERX-CERNET-BKB China Education and Rese 55824 128 19 22 NKN-CORE-NW NKN Core Network, IN 2697 54 3 32 ERX-ERNET-AS Education and Research Net 1659 51 1434 33 ERX-TANET-ASN1 Taiwan Academic Network 9317 49 16 1 ITISNET-AS INHA UNIVERSITY, KR Complete listing at https://bgp.nsrc.org/REN/MARWAN/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 5786 194 16 1 UPRENET, PR 2152 157 507 85 CSUNET-NW, US 18558 135 18 4 NETBLK-RCOEK, US 270 119 329 88 AS270, US 2920 112 34 6 LACOE, US 376 86 7 63 RISQ-AS, CA 21976 85 51 18 NJEDGE-NET, US 1736 80 16 1 MU-AS, US 22742 68 53 34 CT-EDU-NET, US 3477 67 71 40 NOAA-NWAVE, US Complete listing at https://bgp.nsrc.org/REN/MARWAN/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 277 1998 237 DFN Verein zur Foerderung eines Deutsch 786 186 1774 183 JANET Jisc Services Limited, GB 8895 177 24 4 ISU Internet Services Unit ISU, SA 559 115 550 106 SWITCH Peering requests: peering@switch 1103 97 1520 84 SURFNET-NL SURFnet, The Netherlands, NL 137 81 676 76 ASGARR Consortium GARR, IT 2200 67 647 61 FR-RENATER Reseau National de telecommu 2614 59 33 57 ROEDUNET, RO 1930 57 81 52 RCCN Fundacao para a Ciencia e a Tecnol 1653 51 165 48 SUNET SUNET Swedish University Network, Complete listing at https://bgp.nsrc.org/REN/MARWAN/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 188 178 36 Associacao Rede Nacional de Ensino e Pe 11340 94 24 54 Red Universitaria Nacional, CL 1251 65 37 20 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 19611 45 17 2 Associacao Antonio Vieira - Unisinos, B 4270 43 16 1 Red de Interconexion Universitaria, AR 61468 41 3 15 CEDIA, EC 28614 38 2 2 Fundacao Universidade Regional de Blume 20191 31 16 1 Pontificia Universidad Catolica de Chil 28571 28 19 18 UNIVERSIDADE DE SAO PAULO, BR 271640 27 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR Complete listing at https://bgp.nsrc.org/REN/MARWAN/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 2018 341 319 71 TENET-1, ZA 36914 197 82 3 KENET-AS, KE 327687 124 28 3 RENU, UG 8094 50 48 4 PUKNET, ZA 327700 43 16 1 MoRENet, MZ 37215 33 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 37182 11 8 1 TERNET, TZ 37501 11 49 6 UOFS, ZA 36982 8 33 8 UCT, ZA Complete listing at https://bgp.nsrc.org/REN/MARWAN/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 619 2156 457 SINET-AS Research Organization of Infor 7497 423 177 19 CSTNET-AS-AP Computer Network Informati 2018 341 319 71 TENET-1, ZA 680 277 1998 237 DFN Verein zur Foerderung eines Deutsch 36914 197 82 3 KENET-AS, KE 5786 194 16 1 UPRENET, PR 1237 188 74 135 KREONET-AS-KR KISTI, KR 1916 188 178 36 Associacao Rede Nacional de Ensino e Pe 786 186 1774 183 JANET Jisc Services Limited, GB 8895 177 24 4 ISU Internet Services Unit ISU, SA Complete listing at https://bgp.nsrc.org/REN/MARWAN/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 7497 423 404 CSTNET-AS-AP Computer Network Information Cente 2018 341 270 TENET-1, ZA 36914 197 194 KENET-AS, KE 5786 194 193 UPRENET, PR 58647 176 174 KAGAWAU-AS Kagawa University, JP 8895 177 173 ISU Internet Services Unit ISU, SA 1916 188 152 Associacao Rede Nacional de Ensino e Pesquisa, 18558 135 131 NETBLK-RCOEK, US 327687 124 121 RENU, UG 55824 128 106 NKN-CORE-NW NKN Core Network, IN Complete listing at https://bgp.nsrc.org/REN/MARWAN/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 29955 UNALLOCATED 192.104.1.0/24 2495 KANREN, US 29955 UNALLOCATED 198.252.8.0/21 2495 KANREN, US 19658 UNALLOCATED 199.27.241.0/24 11096 FLORIDANET, US Complete listing at https://bgp.nsrc.org/REN/MARWAN/data-badAS Prefixes from private and non-routed address space (Global) ----------------------------------------------------------- Prefix Origin AS Description 0.0.0.0/0 36884 MAROCCONNECT, MA Complete listing at https://bgp.nsrc.org/REN/MARWAN/data-dsua Number of prefixes announced per prefix length (Global) ------------------------------------------------------- !!Default route being announced!! /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 /14:35 /15:107 /16:1668 /17:285 /18:300 /19:427 /20:652 /21:722 /22:1112 /23:1202 /24:7551 /25:73 /26:61 /27:54 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 36914 183 197 KENET-AS, KE 8895 172 177 ISU Internet Services Unit ISU, SA 23024 53 56 OCDE, US 327700 37 43 MoRENet, MZ 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 25977 29 32 HCCS, US 200521 29 48 SEAP-AGE, ES 1916 27 188 Associacao Rede Nacional de Ensino e Pesquisa, 37215 27 33 MAREN, MW 30220 25 25 SWTELCOOP, US Complete listing at https://bgp.nsrc.org/REN/MARWAN/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2 5:15 8:2 12:1 14:84 23:2 24:3 31:1 37:6 38:3 41:147 42:9 44:4 45:35 46:6 49:10 58:4 59:11 60:4 61:3 62:6 63:4 64:11 66:23 67:34 68:1 69:17 72:10 74:16 76:2 77:6 78:3 79:10 80:10 81:26 82:2 83:7 84:3 85:22 86:6 87:1 88:1 89:10 91:45 93:18 94:2 95:4 96:5 101:5 102:15 103:228 104:6 106:1 108:4 109:9 110:3 111:16 112:4 114:18 116:5 117:2 118:17 119:21 121:27 122:8 123:8 124:39 125:1 128:66 129:32 130:84 131:79 132:49 133:138 134:89 136:185 137:102 138:8 139:4 140:32 141:2 142:23 143:28 144:25 145:1 146:122 147:24 148:7 149:13 150:19 151:2 152:25 153:6 154:24 155:45 156:67 157:25 158:39 159:116 160:25 161:15 162:10 163:60 164:37 165:53 166:1 167:11 168:100 169:8 170:41 172:2 173:2 175:30 176:8 177:6 178:1 179:10 180:21 182:6 184:3 185:32 186:3 187:17 188:13 189:3 190:43 191:6 192:1153 193:180 194:101 195:59 196:170 197:104 198:326 199:179 200:221 201:38 202:368 203:279 204:272 205:113 206:130 207:128 208:43 209:94 210:177 211:2 212:171 213:2 216:50 217:13 218:5 219:13 220:12 222:4 223:2 End of report