IPv4 R&E Routing Table Report 18:30 GMT Sat 26 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: 17491 Prefixes after maximum aggregation (per Origin AS): 10100 Deaggregation factor: 1.73 Unique aggregates announced (without unneeded subnets): 11241 Number of IPv4 prefixes with a valid ROA: 3660 Number of IPv4 prefixes with an invalid ROA: 0 Number of IPv4 prefixes with no ROA: 13831 Total ASes present in the Internet Routing Table: 2683 Prefixes per ASN: 6.52 Origin-only ASes present in the Internet Routing Table: 2320 Origin ASes announcing only one prefix: 1076 Transit ASes present in the Internet Routing Table: 363 Transit-only ASes present in the Internet Routing Table: 51 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: 38907 Number of 32-bit ASNs visible in the Routing Table: 601 Prefixes from 32-bit ASNs in the Routing Table: 1616 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: 202432512 Equivalent to 12 /8s, 16 /16s and 224 /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: 1665 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4672 Total APNIC prefixes after maximum aggregation: 2281 APNIC Deaggregation factor: 2.05 Prefixes being announced from the APNIC address blocks: 4673 Unique aggregates announced from the APNIC address blocks: 2595 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: 220 Number of APNIC addresses announced to Internet: 46039552 Equivalent to 2 /8s, 190 /16s and 130 /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: 7447 Total ARIN prefixes after maximum aggregation: 4357 ARIN Deaggregation factor: 1.71 Prefixes being announced from the ARIN address blocks: 7462 Unique aggregates announced from the ARIN address blocks: 4879 ARIN Region origin ASes present in the Internet Routing Table: 1183 ARIN Prefixes per ASN: 6.31 ARIN Region origin ASes announcing only one prefix: 434 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: 15 Number of ARIN region 32-bit ASNs visible in the Routing Table: 165 Number of ARIN addresses announced to Internet: 91878144 Equivalent to 5 /8s, 121 /16s and 243 /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: 3401 Total RIPE prefixes after maximum aggregation: 2760 RIPE Deaggregation factor: 1.23 Prefixes being announced from the RIPE address blocks: 3388 Unique aggregates announced from the RIPE address blocks: 2743 RIPE Region origin ASes present in the Internet Routing Table: 663 RIPE Prefixes per ASN: 5.11 RIPE Region origin ASes announcing only one prefix: 308 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: 130 Number of RIPE addresses announced to Internet: 57995776 Equivalent to 3 /8s, 116 /16s and 242 /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: 1223 Total LACNIC prefixes after maximum aggregation: 508 LACNIC Deaggregation factor: 2.41 Prefixes being announced from the LACNIC address blocks: 1223 Unique aggregates announced from the LACNIC address blocks: 734 LACNIC Region origin ASes present in the Internet Routing Table: 155 LACNIC Prefixes per ASN: 7.89 LACNIC Region origin ASes announcing only one prefix: 63 LACNIC Region transit ASes present in the Internet Routing Table: 22 Average LACNIC Region AS path length visible: 5.1 Max LACNIC Region AS path length visible: 12 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 59 Number of LACNIC addresses announced to Internet: 3781632 Equivalent to 0 /8s, 57 /16s and 180 /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: 743 Total AfriNIC prefixes after maximum aggregation: 189 AfriNIC Deaggregation factor: 3.93 Prefixes being announced from the AfriNIC address blocks: 743 Unique aggregates announced from the AfriNIC address blocks: 288 AfriNIC Region origin ASes present in the Internet Routing Table: 51 AfriNIC Prefixes per ASN: 14.57 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: 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: 2736896 Equivalent to 0 /8s, 41 /16s and 195 /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 2117 458 SINET-AS Research Organization of Infor 7497 431 182 24 CSTNET-AS-AP Computer Network Informati 4538 190 4192 72 ERX-CERNET-BKB China Education and Rese 1237 186 74 135 KREONET-AS-KR KISTI, KR 7575 176 330 123 AARNET-AS-AP Australian Academic and Re 58647 167 18 2 KAGAWAU-AS Kagawa University, JP 55824 114 18 10 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 77 71 46 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 140 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 157 207 44 Rede Nacional de Ensino e Pesquisa, BR 28391 152 10 66 Universidad Juarez Autonoma de Tabasco, 11340 94 24 54 Red Universitaria Nacional, CL 2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo 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 35 4 10 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA 3596 33 2 2 Universidad Autonoma Metropolitana, MX 20191 31 16 1 Pontificia Universidad Catolica de Chil 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 374 319 74 TENET-1, ZA 2561 67 4 32 EUN, EG 8094 50 48 4 PUKNET, ZA 327687 39 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 2117 458 SINET-AS Research Organization of Infor 7497 431 182 24 CSTNET-AS-AP Computer Network Informati 2018 374 319 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 4538 190 4192 72 ERX-CERNET-BKB China Education and Rese 786 186 1774 183 JANET Jisc Services Limited, GB 1237 186 74 135 KREONET-AS-KR KISTI, KR 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 431 407 CSTNET-AS-AP Computer Network Information Cente 2018 374 300 TENET-1, ZA 7896 252 245 NU-AS, US 58647 167 165 KAGAWAU-AS Kagawa University, JP 8895 140 136 ISU Internet Services Unit ISU, SA 18558 135 131 NETBLK-RCOEK, US 4538 190 118 ERX-CERNET-BKB China Education and Research Net 1916 157 113 Rede Nacional de Ensino e Pesquisa, BR 55824 114 104 NKN-CORE-NW NKN Core Network, IN 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 /18:428 /19:545 /20:826 /21:837 /22:1369 /23:1484 /24:9451 /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 135 140 ISU Internet Services Unit ISU, SA 23024 53 56 OCDE, US 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 327700 32 36 MoRENet, MZ 25977 31 45 HCCS, US 27609 29 45 USC-UNIVERSITY-HOSPITAL, US 32440 29 44 LONI, US 40326 29 33 ECKERD-COLLEGE, US 263282 28 35 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN 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 45:35 46:6 47:1 49:10 50:1 52:1 58:10 59:21 60:4 61:3 62:7 63:34 64:41 66:35 67:41 68:8 69:19 70:2 71:1 72:9 74:20 76:33 77:7 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 98:2 101:8 102:12 103:303 104:14 106:1 108:8 109:10 110:3 111:19 114:23 116:5 117:61 118:34 119:21 121:28 122:8 123:8 124:39 125:4 128:81 129:176 130:92 131:88 132:58 133:141 134:94 136:3 137:87 138:8 139:4 140:36 141:1 142:41 143:24 144:50 145:1 146:128 147:56 148:191 149:12 150:42 151:6 152:71 153:13 154:26 155:51 156:67 157:26 158:42 159:116 160:25 161:21 162:20 163:58 164:18 165:55 166:2 167:16 168:124 169:10 170:51 171:1 172:2 173:2 175:29 176:8 177:7 179:12 180:21 182:5 184:4 185:36 186:3 187:17 188:13 189:5 190:33 191:25 192:1394 193:268 194:140 195:81 196:165 197:5 198:461 199:253 200:208 201:38 202:632 203:423 204:315 205:161 206:187 207:161 208:66 209:112 210:180 211:15 212:146 213:5 216:83 217:11 218:22 219:12 220:14 222:6 223:4 End of report