Global R&E Routing Table Report 18:00 GMT Thu 02 Dec, 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: 14377 Prefixes after maximum aggregation (per Origin AS): 8409 Deaggregation factor: 1.71 Unique aggregates announced (without unneeded subnets): 9286 Total ASes present in the Internet Routing Table: 2175 Prefixes per ASN: 6.61 Origin-only ASes present in the Internet Routing Table: 1872 Origin ASes announcing only one prefix: 888 Transit ASes present in the Internet Routing Table: 303 Transit-only ASes present in the Internet Routing Table: 36 Average AS path length visible in the Internet Routing Table: 5.4 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: 37963 Number of 32-bit ASNs visible in the Routing Table: 488 Prefixes from 32-bit ASNs in the Routing Table: 1312 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: 177424064 Equivalent to 10 /8s, 147 /16s and 70 /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: 1599 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 3883 Total APNIC prefixes after maximum aggregation: 2044 APNIC Deaggregation factor: 1.90 Prefixes being announced from the APNIC address blocks: 3885 Unique aggregates announced from the APNIC address blocks: 2240 APNIC Region origin ASes present in the Internet Routing Table: 454 APNIC Prefixes per ASN: 8.56 APNIC Region origin ASes announcing only one prefix: 195 APNIC Region transit ASes present in the Internet Routing Table: 48 Average APNIC Region AS path length visible: 5.1 Max APNIC Region AS path length visible: 13 Number of APNIC region 32-bit ASNs visible in the Routing Table: 168 Number of APNIC addresses announced to Internet: 44602944 Equivalent to 2 /8s, 168 /16s and 150 /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: 5541 Total ARIN prefixes after maximum aggregation: 3295 ARIN Deaggregation factor: 1.68 Prefixes being announced from the ARIN address blocks: 5552 Unique aggregates announced from the ARIN address blocks: 3729 ARIN Region origin ASes present in the Internet Routing Table: 874 ARIN Prefixes per ASN: 6.35 ARIN Region origin ASes announcing only one prefix: 312 ARIN Region transit ASes present in the Internet Routing Table: 115 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: 114 Number of ARIN addresses announced to Internet: 71500288 Equivalent to 4 /8s, 67 /16s and 2 /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: 3105 Total RIPE prefixes after maximum aggregation: 2489 RIPE Deaggregation factor: 1.25 Prefixes being announced from the RIPE address blocks: 3098 Unique aggregates announced from the RIPE address blocks: 2586 RIPE Region origin ASes present in the Internet Routing Table: 611 RIPE Prefixes per ASN: 5.07 RIPE Region origin ASes announcing only one prefix: 299 RIPE Region transit ASes present in the Internet Routing Table: 100 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: 120 Number of RIPE addresses announced to Internet: 55686112 Equivalent to 3 /8s, 81 /16s and 179 /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: 1016 Total LACNIC prefixes after maximum aggregation: 414 LACNIC Deaggregation factor: 2.45 Prefixes being announced from the LACNIC address blocks: 1014 Unique aggregates announced from the LACNIC address blocks: 500 LACNIC Region origin ASes present in the Internet Routing Table: 146 LACNIC Prefixes per ASN: 6.95 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: 6.0 Max LACNIC Region AS path length visible: 14 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 61 Number of LACNIC addresses announced to Internet: 2982304 Equivalent to 0 /8s, 45 /16s and 129 /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: 828 Total AfriNIC prefixes after maximum aggregation: 163 AfriNIC Deaggregation factor: 5.08 Prefixes being announced from the AfriNIC address blocks: 827 Unique aggregates announced from the AfriNIC address blocks: 231 AfriNIC Region origin ASes present in the Internet Routing Table: 51 AfriNIC Prefixes per ASN: 16.22 AfriNIC Region origin ASes announcing only one prefix: 24 AfriNIC Region transit ASes present in the Internet Routing Table: 12 Average AfriNIC Region AS path length visible: 5.2 Max AfriNIC Region AS path length visible: 9 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 25 Number of AfriNIC addresses announced to Internet: 2652416 Equivalent to 0 /8s, 40 /16s and 121 /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 622 2156 457 SINET-AS Research Organization of Infor 7497 424 177 19 CSTNET-AS-AP Computer Network Informati 1237 188 74 135 KREONET-AS-KR KISTI, KR 7575 177 330 123 AARNET-AS-AP Australian Academic and Re 58647 176 18 2 KAGAWAU-AS Kagawa University, JP 4538 174 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 376 203 178 152 RISQ-AS, CA 5786 195 16 1 UPRENET, PR 2152 157 507 85 CSUNET-NW, US 18558 136 18 4 NETBLK-RCOEK, US 270 119 329 88 AS270, US 2920 112 34 6 LACOE, US 21976 85 51 18 NJEDGE-NET, US 1736 80 16 1 MU-AS, US 22742 68 53 34 CT-EDU-NET, US 3477 65 71 38 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 680 278 1966 242 DFN Verein zur Foerderung eines Deutsch 786 186 1774 183 JANET Jisc Services Limited, GB 8895 176 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 82 677 77 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 52 167 49 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 181 170 35 Rede Nacional de Ensino e Pesquisa, BR 11340 95 24 54 Red Universitaria Nacional, CL 1251 65 37 20 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 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 3597 23 2 17 Fundacion InnovaT, AR 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 346 319 71 TENET-1, ZA 36914 208 82 3 KENET-AS, KE 8094 50 48 4 PUKNET, ZA 327700 41 16 1 MoRENet, MZ 327687 37 28 3 RENU, UG 6879 24 2 9 ENSTINET-, EG 37182 11 8 1 TERNET, TZ 37501 11 49 6 UOFS, ZA 37074 10 7 7 UG-AS, GH 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 622 2156 457 SINET-AS Research Organization of Infor 7497 424 177 19 CSTNET-AS-AP Computer Network Informati 2018 346 319 71 TENET-1, ZA 680 278 1966 242 DFN Verein zur Foerderung eines Deutsch 36914 208 82 3 KENET-AS, KE 376 203 178 152 RISQ-AS, CA 5786 195 16 1 UPRENET, PR 1237 188 74 135 KREONET-AS-KR KISTI, KR 786 186 1774 183 JANET Jisc Services Limited, GB 1916 181 170 35 Rede Nacional de Ensino e Pesquisa, BR 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 424 405 CSTNET-AS-AP Computer Network Information Cente 2018 346 275 TENET-1, ZA 36914 208 205 KENET-AS, KE 5786 195 194 UPRENET, PR 58647 176 174 KAGAWAU-AS Kagawa University, JP 8895 176 172 ISU Internet Services Unit ISU, SA 1916 181 146 Rede Nacional de Ensino e Pesquisa, BR 18558 136 132 NETBLK-RCOEK, US 55824 128 106 NKN-CORE-NW NKN Core Network, IN 2920 112 106 LACOE, US 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 /13:18 /14:35 /15:107 /16:1682 /17:292 /18:304 /19:452 /20:666 /21:727 /22:1120 /23:1201 /24:7570 /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 194 208 KENET-AS, KE 8895 171 176 ISU Internet Services Unit ISU, SA 23024 53 56 OCDE, US 327700 35 41 MoRENet, MZ 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 25977 29 32 HCCS, US 200521 28 46 SEAP-AGE, ES 1916 27 181 Rede Nacional de Ensino e Pesquisa, BR 30220 25 25 SWTELCOOP, US 31638 21 21 ASN-LEPIDA, IT 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 24:6 31:1 37:6 38:3 41:122 42:9 44:4 45:30 46:6 49:10 58:4 59:10 60:4 61:2 62:6 63:4 64:12 66:24 67:34 68:1 69:17 71:1 72:10 74:17 76:3 77:6 78:3 79:10 80:10 81:26 82:2 83:7 84:3 85:23 86:6 87:1 88:1 89:10 91:45 93:18 94:2 95:5 96:5 101:4 102:13 103:218 104:6 106:1 108:4 109:9 110:3 111:16 112:4 114:14 116:5 117:2 118:17 119:21 121:27 122:8 123:8 124:39 125:1 128:67 129:30 130:84 131:79 132:53 133:138 134:89 136:186 137:46 138:8 139:4 140:34 141:2 142:22 143:31 144:25 145:1 146:123 147:24 148:7 149:13 150:19 151:2 152:22 153:6 154:25 155:46 156:67 157:25 158:39 159:116 160:25 161:15 162:15 163:55 164:40 165:53 166:1 167:11 168:98 169:8 170:44 172:2 173:2 175:21 176:8 177:5 178:1 179:9 180:21 182:6 184:3 185:35 186:3 187:17 188:13 189:3 190:47 192:1185 193:182 194:102 195:59 196:150 197:115 198:347 199:182 200:216 201:38 202:367 203:279 204:284 205:142 206:150 207:133 208:43 209:93 210:178 211:2 212:171 213:3 216:50 217:13 218:5 219:13 220:12 222:5 223:2 End of report