IPv4 R&E Routing Table Report 19:10 GMT Thu 28 Nov, 2024 IPv4 BGP Table (R&E) as seen at PERN. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/PERN/ Analysis Summary ---------------- BGP routing table entries examined: 19361 Prefixes after maximum aggregation (per Origin AS): 10670 Deaggregation factor: 1.81 Unique aggregates announced (without unneeded subnets): 11787 Number of IPv4 prefixes with a valid ROA: 7396 Number of IPv4 prefixes with an invalid ROA: 7 Number of IPv4 prefixes with no ROA: 11958 Total ASes present in the Internet Routing Table: 2780 Prefixes per ASN: 6.96 Origin-only ASes present in the Internet Routing Table: 2403 Origin ASes announcing only one prefix: 1071 Transit ASes present in the Internet Routing Table: 377 Transit-only ASes present in the Internet Routing Table: 68 Paths with bogon ASNs present in the IPv4 Routing Table: 0 Average AS path length visible in the Internet Routing Table: 6.7 Max AS path length visible: 28 Max AS path prepend of ASN (138136) 20 Prefixes from unregistered ASNs in the Routing Table: 1 Number of instances of unregistered ASNs: 1 Number of 32-bit ASNs allocated by the RIRs: 45925 Number of 32-bit ASNs visible in the Routing Table: 671 Prefixes from 32-bit ASNs in the Routing Table: 1848 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: 4 Number of addresses announced to Internet: 201075712 Equivalent to 11 /8s, 252 /16s and 44 /24s Percentage of available address space announced: 5.4 Percentage of allocated address space announced: 5.4 Percentage of available address space allocated: 100.1 Percentage of address space in use by end-sites: 99.6 Total number of prefixes smaller than registry allocations: 2247 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4597 Total APNIC prefixes after maximum aggregation: 2242 APNIC Deaggregation factor: 2.05 Prefixes being announced from the APNIC address blocks: 4596 Unique aggregates announced from the APNIC address blocks: 2606 APNIC Region origin ASes present in the Internet Routing Table: 555 APNIC Prefixes per ASN: 8.28 APNIC Region origin ASes announcing only one prefix: 236 APNIC Region transit ASes present in the Internet Routing Table: 58 Average APNIC Region AS path length visible: 5.1 Max APNIC Region AS path length visible: 28 Number of APNIC region 32-bit ASNs visible in the Routing Table: 208 Number of APNIC addresses announced to Internet: 45522432 Equivalent to 2 /8s, 182 /16s and 158 /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, 131072-153913 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: 8686 Total ARIN prefixes after maximum aggregation: 4859 ARIN Deaggregation factor: 1.79 Prefixes being announced from the ARIN address blocks: 8697 Unique aggregates announced from the ARIN address blocks: 5337 ARIN Region origin ASes present in the Internet Routing Table: 1284 ARIN Prefixes per ASN: 6.77 ARIN Region origin ASes announcing only one prefix: 452 ARIN Region transit ASes present in the Internet Routing Table: 154 Average ARIN Region AS path length visible: 7.9 Max ARIN Region AS path length visible: 19 Number of ARIN region 32-bit ASNs visible in the Routing Table: 214 Number of ARIN addresses announced to Internet: 90304256 Equivalent to 5 /8s, 97 /16s and 239 /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, 393216-402332 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, 45/8, 47/8, 48/8, 50/8, 52/8, 54/8, 55/8, 56/8, 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: 3563 Total RIPE prefixes after maximum aggregation: 2857 RIPE Deaggregation factor: 1.25 Prefixes being announced from the RIPE address blocks: 3551 Unique aggregates announced from the RIPE address blocks: 2900 RIPE Region origin ASes present in the Internet Routing Table: 665 RIPE Prefixes per ASN: 5.34 RIPE Region origin ASes announcing only one prefix: 297 RIPE Region transit ASes present in the Internet Routing Table: 109 Average RIPE Region AS path length visible: 5.3 Max RIPE Region AS path length visible: 15 Number of RIPE region 32-bit ASNs visible in the Routing Table: 154 Number of RIPE addresses announced to Internet: 58570240 Equivalent to 3 /8s, 125 /16s and 182 /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 196608-216475 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 53/8, 57/8, 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: 1447 Total LACNIC prefixes after maximum aggregation: 538 LACNIC Deaggregation factor: 2.69 Prefixes being announced from the LACNIC address blocks: 1447 Unique aggregates announced from the LACNIC address blocks: 722 LACNIC Region origin ASes present in the Internet Routing Table: 155 LACNIC Prefixes per ASN: 9.34 LACNIC Region origin ASes announcing only one prefix: 54 LACNIC Region transit ASes present in the Internet Routing Table: 23 Average LACNIC Region AS path length visible: 8.1 Max LACNIC Region AS path length visible: 17 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 65 Number of LACNIC addresses announced to Internet: 4197376 Equivalent to 0 /8s, 64 /16s and 12 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + 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: 1067 Total AfriNIC prefixes after maximum aggregation: 173 AfriNIC Deaggregation factor: 6.17 Prefixes being announced from the AfriNIC address blocks: 1066 Unique aggregates announced from the AfriNIC address blocks: 218 AfriNIC Region origin ASes present in the Internet Routing Table: 52 AfriNIC Prefixes per ASN: 20.50 AfriNIC Region origin ASes announcing only one prefix: 32 AfriNIC Region transit ASes present in the Internet Routing Table: 11 Average AfriNIC Region AS path length visible: 6.6 Max AfriNIC Region AS path length visible: 26 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 30 Number of AfriNIC addresses announced to Internet: 2478592 Equivalent to 0 /8s, 37 /16s and 210 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 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 593 2202 463 SINET-AS Research Organization of Informa 7497 447 180 24 CSTNET-AS-AP Computer Network Information 1237 191 74 145 KREONET-AS-KR KISTI, KR 58647 181 18 2 KAGAWAU-AS Kagawa University, JP 7575 171 313 114 AARNET-AS-AP Australian Academic and Rese 4538 139 4192 71 ERX-CERNET-BKB China Education and Resear 55824 132 18 18 NKN-CORE-NW NKN Core Network, IN 4762 75 4 1 MAHIDOL-BORDER-AS Mahidol University, Tha 4621 65 37 10 UNINET-AS-AP UNINET-, TH 2697 60 4 35 ERX-ERNET-AS Education and Research Netwo Complete listing at https://bgp.nsrc.org/REN/PERN/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 2152 511 507 99 CENIC-2152, US 2920 229 44 49 LACOE, US 376 201 162 150 RISQ-AS, CA 668 199 615 168 DNIC-AS-00668, US 5786 198 16 1 UPRENET, PR 18558 141 18 5 NETBLK-RCOEK, US 81 134 517 33 NCREN, US 23024 95 7 21 OCDE, US 21976 91 50 17 NJEDGE-NET, US 237 82 541 48 MERIT-AS-14, US Complete listing at https://bgp.nsrc.org/REN/PERN/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 283 1899 249 DFN Verein zur Foerderung eines Deutschen 786 186 1767 183 JANET Jisc Services Limited, GB 8895 132 24 5 ISU Internet Services Unit ISU, SA 559 114 533 104 SWITCH Peering requests: peering@switch.c 1103 96 1743 83 SURFNET-NL SURFnet, The Netherlands, NL 2614 93 26 73 ROEDUNET, RO 137 82 677 77 ASGARR Consortium GARR, IT 1930 79 88 74 RCCN Fundacao para a Ciencia e a Tecnolog 553 78 462 78 BELWUE BelWue-Koordination, DE 3267 76 26 66 NIKS, RU Complete listing at https://bgp.nsrc.org/REN/PERN/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 218 178 42 Rede Nacional de Ensino e Pesquisa, BR 28391 154 10 68 Universidad Juarez Autonoma de Tabasco, M 11340 110 25 53 Red Universitaria Nacional, CL 271640 67 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 61468 51 5 17 CEDIA, EC 2715 49 99 35 Fundacao Carlos Chagas Filho de Amparo a 19611 48 17 2 Associacao Antonio Vieira - Unisinos, BR 4270 46 16 1 Red de Interconexion Universitaria, AR 28614 38 2 2 Fundacao Universidade Regional de Blumena 1251 37 31 26 FUNDACAO DE AMPARO A PESQUISA DO ESTADO S Complete listing at https://bgp.nsrc.org/REN/PERN/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 36914 460 82 3 KENET-AS, KE 2018 381 319 71 TENET-1, ZA 8094 47 48 18 PUKNET, ZA 37215 32 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 37074 15 8 2 UG-AS, GH 327700 14 16 1 MoRENet, MZ 37661 12 8 4 NRaE1-AS, NG 37501 11 49 6 UOFS, ZA 36982 8 33 8 UCT, ZA Complete listing at https://bgp.nsrc.org/REN/PERN/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 593 2202 463 SINET-AS Research Organization of Informa 2152 511 507 99 CENIC-2152, US 36914 460 82 3 KENET-AS, KE 7497 447 180 24 CSTNET-AS-AP Computer Network Information 2018 381 319 71 TENET-1, ZA 680 283 1899 249 DFN Verein zur Foerderung eines Deutschen 2920 229 44 49 LACOE, US 1916 218 178 42 Rede Nacional de Ensino e Pesquisa, BR 376 201 162 150 RISQ-AS, CA 668 199 615 168 DNIC-AS-00668, US Complete listing at https://bgp.nsrc.org/REN/PERN/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 36914 460 457 KENET-AS, KE 7497 447 423 CSTNET-AS-AP Computer Network Information Cente 2152 511 412 CENIC-2152, US 2018 381 310 TENET-1, ZA 5786 198 197 UPRENET, PR 2920 229 180 LACOE, US 58647 181 179 KAGAWAU-AS Kagawa University, JP 1916 218 176 Rede Nacional de Ensino e Pesquisa, BR 18558 141 136 NETBLK-RCOEK, US 8895 132 127 ISU Internet Services Unit ISU, SA Complete listing at https://bgp.nsrc.org/REN/PERN/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 26971 UNALLOCATED 129.111.0.0/16 276 OTS-AS-276, US Complete listing at https://bgp.nsrc.org/REN/PERN/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 164.160.192.0/21 Origin: 37661 NRaE1-AS, NG 164.160.192.0/21 Transit: 37288 WACREN, SN 202.14.117.0/24 Origin: 17827 STOU-AS-TH Sukhothai Thammathirat Open U 202.14.117.0/24 Transit: 4621 UNINET-AS-AP UNINET-, TH 202.46.245.0/24 Origin: 147171 IDNIC-BRIN-AS-ID Badan Riset dan Inovasi 202.46.245.0/24 Transit: 64302 IDNIC-IDREN-AS-ID IDREN - Indonesia Rese 203.9.156.0/24 Origin: 1851 ADELAIDE-UNIVERSITY-AS-AP The University 203.9.156.0/24 Transit: 7575 AARNET-AS-AP Australian Academic and Res Complete listing at https://bgp.nsrc.org/REN/PERN/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 /10:1 /11:1 /12:11 /13:18 /14:33 /15:118 /16:1985 /17:424 /18:461 /19:581 /20:874 /21:888 /22:1483 /23:1609 /24:10873 /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 447 460 KENET-AS, KE 8895 127 132 ISU Internet Services Unit ISU, SA 2152 61 511 CENIC-2152, US 23024 37 95 OCDE, US 32440 37 63 LONI, US 3267 34 76 NIKS, RU 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 46115 32 35 LUTHER, US 200521 32 55 SEAP-AGE, ES 25977 30 44 HCCS, US Complete listing at https://bgp.nsrc.org/REN/PERN/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2 5:15 6:4 8:2 12:2 14:93 23:8 24:3 31:1 35:3 37:8 38:11 41:158 42:11 44:4 45:50 46:4 47:1 49:10 50:4 52:1 59:19 60:5 61:3 62:7 63:36 64:45 65:5 66:58 67:42 68:13 69:19 70:2 71:1 72:7 74:54 76:42 77:10 78:3 79:10 80:12 81:25 82:7 83:7 84:5 85:45 86:5 87:1 89:11 91:42 92:2 93:13 94:2 95:2 96:5 97:1 98:2 101:1 102:12 103:287 104:78 107:2 108:8 109:5 111:21 113:1 114:24 116:9 117:61 118:33 119:24 121:27 122:8 123:8 124:42 125:5 128:56 129:36 130:97 131:65 132:65 133:154 134:109 136:198 137:98 138:59 139:5 140:36 141:3 142:53 143:26 144:28 145:2 146:137 147:63 148:196 149:12 150:40 151:9 152:139 153:14 154:40 155:63 156:133 157:27 158:30 159:118 160:31 161:16 162:24 163:64 164:11 165:47 166:1 167:26 168:119 169:7 170:96 171:1 172:2 173:7 175:16 177:6 179:13 180:16 181:1 182:11 184:2 185:51 186:3 187:21 188:13 189:2 190:18 191:13 192:1398 193:272 194:137 195:75 196:147 197:331 198:543 199:278 200:330 201:37 202:631 203:440 204:401 205:174 206:215 207:308 208:67 209:160 210:218 211:3 212:165 213:6 214:8 216:91 217:9 218:21 219:6 220:17 222:2 223:15 End of report