IPv4 R&E Routing Table Report 18:45 GMT Fri 19 May, 2023 IPv4 BGP Table (R&E) as seen at TENET. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/TENET/ Analysis Summary ---------------- BGP routing table entries examined: 15998 Prefixes after maximum aggregation (per Origin AS): 8399 Deaggregation factor: 1.90 Unique aggregates announced (without unneeded subnets): 9617 Number of IPv4 prefixes with a valid ROA: 3243 Number of IPv4 prefixes with an invalid ROA: 10 Number of IPv4 prefixes with no ROA: 12745 Total ASes present in the Internet Routing Table: 2252 Prefixes per ASN: 7.10 Origin-only ASes present in the Internet Routing Table: 1955 Origin ASes announcing only one prefix: 829 Transit ASes present in the Internet Routing Table: 297 Transit-only ASes present in the Internet Routing Table: 56 Paths with bogon ASNs present in the IPv4 Routing Table: 0 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 19 Max AS path prepend of ASN (395156) 12 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: 41896 Number of 32-bit ASNs visible in the Routing Table: 513 Prefixes from 32-bit ASNs in the Routing Table: 1544 Number of bogon 32-bit ASNs visible in the Routing Table: 0 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 3 Number of addresses announced to Internet: 160861440 Equivalent to 9 /8s, 150 /16s and 141 /24s Percentage of available address space announced: 4.3 Percentage of allocated address space announced: 4.3 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.6 Total number of prefixes smaller than registry allocations: 1593 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4680 Total APNIC prefixes after maximum aggregation: 2301 APNIC Deaggregation factor: 2.03 Prefixes being announced from the APNIC address blocks: 4680 Unique aggregates announced from the APNIC address blocks: 2636 APNIC Region origin ASes present in the Internet Routing Table: 577 APNIC Prefixes per ASN: 8.11 APNIC Region origin ASes announcing only one prefix: 251 APNIC Region transit ASes present in the Internet Routing Table: 60 Average APNIC Region AS path length visible: 4.9 Max APNIC Region AS path length visible: 15 Number of APNIC region 32-bit ASNs visible in the Routing Table: 224 Number of APNIC addresses announced to Internet: 45893632 Equivalent to 2 /8s, 188 /16s and 72 /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: 7948 Total ARIN prefixes after maximum aggregation: 4712 ARIN Deaggregation factor: 1.69 Prefixes being announced from the ARIN address blocks: 7961 Unique aggregates announced from the ARIN address blocks: 5288 ARIN Region origin ASes present in the Internet Routing Table: 1225 ARIN Prefixes per ASN: 6.50 ARIN Region origin ASes announcing only one prefix: 428 ARIN Region transit ASes present in the Internet Routing Table: 159 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 19 Number of ARIN region 32-bit ASNs visible in the Routing Table: 186 Number of ARIN addresses announced to Internet: 95324416 Equivalent to 5 /8s, 174 /16s and 137 /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: 948 Total RIPE prefixes after maximum aggregation: 634 RIPE Deaggregation factor: 1.50 Prefixes being announced from the RIPE address blocks: 941 Unique aggregates announced from the RIPE address blocks: 642 RIPE Region origin ASes present in the Internet Routing Table: 206 RIPE Prefixes per ASN: 4.57 RIPE Region origin ASes announcing only one prefix: 85 RIPE Region transit ASes present in the Internet Routing Table: 32 Average RIPE Region AS path length visible: 4.5 Max RIPE Region AS path length visible: 12 Number of RIPE region 32-bit ASNs visible in the Routing Table: 27 Number of RIPE addresses announced to Internet: 13169408 Equivalent to 0 /8s, 200 /16s and 243 /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: 1477 Total LACNIC prefixes after maximum aggregation: 568 LACNIC Deaggregation factor: 2.60 Prefixes being announced from the LACNIC address blocks: 1474 Unique aggregates announced from the LACNIC address blocks: 786 LACNIC Region origin ASes present in the Internet Routing Table: 158 LACNIC Prefixes per ASN: 9.33 LACNIC Region origin ASes announcing only one prefix: 56 LACNIC Region transit ASes present in the Internet Routing Table: 24 Average LACNIC Region AS path length visible: 4.6 Max LACNIC Region AS path length visible: 13 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 66 Number of LACNIC addresses announced to Internet: 4012800 Equivalent to 0 /8s, 61 /16s and 59 /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: 940 Total AfriNIC prefixes after maximum aggregation: 179 AfriNIC Deaggregation factor: 5.25 Prefixes being announced from the AfriNIC address blocks: 939 Unique aggregates announced from the AfriNIC address blocks: 262 AfriNIC Region origin ASes present in the Internet Routing Table: 27 AfriNIC Prefixes per ASN: 34.78 AfriNIC Region origin ASes announcing only one prefix: 9 AfriNIC Region transit ASes present in the Internet Routing Table: 8 Average AfriNIC Region AS path length visible: 2.7 Max AfriNIC Region AS path length visible: 8 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 10 Number of AfriNIC addresses announced to Internet: 2460160 Equivalent to 0 /8s, 37 /16s and 138 /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 595 2154 465 SINET-AS Research Organization of Infor 7497 435 182 24 CSTNET-AS-AP Computer Network Informati 1237 191 74 140 KREONET-AS-KR KISTI, KR 58647 178 18 2 KAGAWAU-AS Kagawa University, JP 7575 173 329 119 AARNET-AS-AP Australian Academic and Re 4538 130 4192 73 ERX-CERNET-BKB China Education and Rese 55824 117 18 11 NKN-CORE-NW NKN Core Network, IN 4621 70 37 10 UNINET-AS-AP UNINET-, TH 9411 66 16 2 NONTRINET-AS-AP Kasetsart University, T 4762 65 4 1 MAHIDOL-BORDER-AS Mahidol University, T Complete listing at https://bgp.nsrc.org/REN/TENET/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 668 209 618 177 DNIC-AS-00668, US 376 202 178 150 RISQ-AS, CA 5786 198 16 1 UPRENET, PR 2152 135 507 92 CSUNET-NW, US 18558 134 18 4 NETBLK-RCOEK, US 81 129 521 32 NCREN, US 270 120 329 85 AS270, US 23024 113 7 17 OCDE, US 2920 107 34 7 LACOE, US 32531 90 6 60 FORDHAM-UNIVERSITY, US Complete listing at https://bgp.nsrc.org/REN/TENET/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8895 137 24 5 ISU Internet Services Unit ISU, SA 1103 95 1518 84 SURFNET-NL SURFnet, The Netherlands, NL 3267 56 63 41 RUNNET, RU 1653 50 151 47 SUNET SUNET Swedish University Network, 1741 39 149 18 FUNETAS, FI 5495 24 7 8 ASN-SPBGU St.Petersburg, Russia, RU 3218 21 4 18 COSMOS-3218-AS AS-COSMOS root, RU 8674 17 2 11 NETNOD-IX Netnod AB, SE 224 13 256 13 UNINETT UNINETT, The Norwegian Universi 1101 13 481 13 IP-EEND-AS IP-EEND BV, NL Complete listing at https://bgp.nsrc.org/REN/TENET/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 221 208 43 Rede Nacional de Ensino e Pesquisa, BR 28391 153 10 67 Universidad Juarez Autonoma de Tabasco, 11340 103 24 47 Red Universitaria Nacional, CL 1251 61 37 19 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo 4270 45 16 1 Red de Interconexion Universitaria, AR 61468 43 3 15 CEDIA, EC 28614 38 2 2 Fundacao Universidade Regional de Blume 19611 37 17 2 Associacao Antonio Vieira - Unisinos, B 28571 37 40 18 UNIVERSIDADE DE SAO PAULO, BR Complete listing at https://bgp.nsrc.org/REN/TENET/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 2018 381 319 72 TENET-1, ZA 36914 256 82 3 KENET-AS, KE 2561 67 4 34 EUN, EG 327687 58 28 3 RENU, UG 8094 48 48 15 PUKNET, ZA 327700 43 16 1 MoRENet, MZ 6879 24 2 9 ENSTINET-, EG 37501 11 49 6 UOFS, ZA 37654 10 1 6 RwEdNet-AS, RW 36982 8 33 8 UCT, ZA Complete listing at https://bgp.nsrc.org/REN/TENET/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 595 2154 465 SINET-AS Research Organization of Infor 7497 435 182 24 CSTNET-AS-AP Computer Network Informati 2018 381 319 72 TENET-1, ZA 36914 256 82 3 KENET-AS, KE 1916 221 208 43 Rede Nacional de Ensino e Pesquisa, BR 668 209 618 177 DNIC-AS-00668, US 376 202 178 150 RISQ-AS, CA 5786 198 16 1 UPRENET, PR 1237 191 74 140 KREONET-AS-KR KISTI, KR 58647 178 18 2 KAGAWAU-AS Kagawa University, JP Complete listing at https://bgp.nsrc.org/REN/TENET/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 7497 435 411 CSTNET-AS-AP Computer Network Information Cente 2018 381 309 TENET-1, ZA 36914 256 253 KENET-AS, KE 5786 198 197 UPRENET, PR 1916 221 178 Rede Nacional de Ensino e Pesquisa, BR 58647 178 176 KAGAWAU-AS Kagawa University, JP 8895 137 132 ISU Internet Services Unit ISU, SA 18558 134 130 NETBLK-RCOEK, US 55824 117 106 NKN-CORE-NW NKN Core Network, IN 2920 107 100 LACOE, US Complete listing at https://bgp.nsrc.org/REN/TENET/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, US 33008 UNALLOCATED 162.248.66.0/24 11096 FLORIDANET, US 18838 UNALLOCATED 168.8.240.0/20 3480 PEACHNET-AS3480, US 18838 UNALLOCATED 168.9.0.0/20 3480 PEACHNET-AS3480, US 394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, US Complete listing at https://bgp.nsrc.org/REN/TENET/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 102.36.194.0/23 Origin: 2018 TENET-1, ZA 102.36.194.0/23 Transit: 0 UNALLOCATED 192.31.196.0/24 Origin: 112 UNASSIGNED 192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL 202.58.231.0/24 Origin: 134096 EHEALTHNSW-AS-AP eHealth NSW, AU 202.58.231.0/24 Transit: 7575 AARNET-AS-AP Australian Academic and Res Complete listing at https://bgp.nsrc.org/REN/TENET/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 /12:9 /13:17 /14:30 /15:88 /16:1479 /17:352 /18:395 /19:481 /20:735 /21:696 /22:1209 /23:1297 /24:9206 /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 244 256 KENET-AS, KE 8895 132 137 ISU Internet Services Unit ISU, SA 23024 52 113 OCDE, US 32440 37 59 LONI, US 327700 37 43 MoRENet, MZ 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 46115 32 35 LUTHER, US 25977 30 44 HCCS, US 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN 27609 29 45 USC-UNIVERSITY-HOSPITAL, US Complete listing at https://bgp.nsrc.org/REN/TENET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2 4:2 6:4 8:2 12:1 14:88 23:9 24:3 35:8 38:9 40:1 41:115 42:10 44:3 45:34 47:1 49:6 50:3 52:1 58:1 59:19 60:4 61:3 62:6 63:33 64:52 65:1 66:33 67:41 68:8 69:19 70:2 71:1 72:7 74:50 76:40 77:6 80:8 81:1 82:4 84:4 85:18 86:10 87:1 89:2 91:15 92:2 93:1 96:5 97:1 98:2 101:6 102:10 103:296 104:76 108:9 109:6 110:2 111:16 114:23 116:6 117:61 118:32 119:21 121:29 122:8 123:8 124:39 125:4 128:84 129:33 130:87 131:49 132:52 133:157 134:99 136:197 137:79 138:9 139:6 140:46 141:1 142:39 143:27 144:23 146:129 147:54 148:186 149:12 150:130 151:9 152:144 153:2 154:30 155:55 156:66 157:35 158:34 159:114 160:27 161:20 162:22 163:81 164:10 165:51 166:1 167:16 168:125 169:8 170:63 171:1 172:3 173:7 175:31 176:8 177:9 179:12 180:15 181:1 182:1 184:3 185:19 186:3 187:18 188:3 189:3 190:18 191:36 192:1042 193:82 194:58 195:64 196:166 197:161 198:480 199:278 200:313 201:39 202:639 203:430 204:350 205:129 206:183 207:168 208:68 209:115 210:189 211:17 212:127 213:3 214:8 216:86 217:1 218:22 219:6 220:16 222:5 223:4 End of report