IPv4 R&E Routing Table Report 22:10 GMT Wed 22 Feb, 2023 IPv4 BGP Table (R&E) as seen at CEDIA. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/CEDIA/ Analysis Summary ---------------- BGP routing table entries examined: 24903 Prefixes after maximum aggregation (per Origin AS): 12383 Deaggregation factor: 2.01 Unique aggregates announced (without unneeded subnets): 14055 Number of IPv4 prefixes with a valid ROA: 10594 Number of IPv4 prefixes with an invalid ROA: 234 Number of IPv4 prefixes with no ROA: 14075 Total ASes present in the Internet Routing Table: 2776 Prefixes per ASN: 8.97 Origin-only ASes present in the Internet Routing Table: 2391 Origin ASes announcing only one prefix: 1048 Transit ASes present in the Internet Routing Table: 385 Transit-only ASes present in the Internet Routing Table: 68 Paths with bogon ASNs present in the IPv4 Routing Table: 1 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 20 Max AS path prepend of ASN (395156) 12 Prefixes from unregistered ASNs in the Routing Table: 6 Number of instances of unregistered ASNs: 6 Number of 32-bit ASNs allocated by the RIRs: 41235 Number of 32-bit ASNs visible in the Routing Table: 646 Prefixes from 32-bit ASNs in the Routing Table: 4460 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: 243107110 Equivalent to 14 /8s, 125 /16s and 133 /24s Percentage of available address space announced: 6.6 Percentage of allocated address space announced: 6.6 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: 3316 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4732 Total APNIC prefixes after maximum aggregation: 2314 APNIC Deaggregation factor: 2.04 Prefixes being announced from the APNIC address blocks: 4779 Unique aggregates announced from the APNIC address blocks: 2690 APNIC Region origin ASes present in the Internet Routing Table: 584 APNIC Prefixes per ASN: 8.18 APNIC Region origin ASes announcing only one prefix: 248 APNIC Region transit ASes present in the Internet Routing Table: 65 Average APNIC Region AS path length visible: 5.7 Max APNIC Region AS path length visible: 16 Number of APNIC region 32-bit ASNs visible in the Routing Table: 227 Number of APNIC addresses announced to Internet: 45844288 Equivalent to 2 /8s, 187 /16s and 135 /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: 13998 Total ARIN prefixes after maximum aggregation: 6308 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 13811 Unique aggregates announced from the ARIN address blocks: 7104 ARIN Region origin ASes present in the Internet Routing Table: 1226 ARIN Prefixes per ASN: 11.27 ARIN Region origin ASes announcing only one prefix: 420 ARIN Region transit ASes present in the Internet Routing Table: 161 Average ARIN Region AS path length visible: 4.5 Max ARIN Region AS path length visible: 20 Number of ARIN region 32-bit ASNs visible in the Routing Table: 187 Number of ARIN addresses announced to Internet: 132469569 Equivalent to 7 /8s, 229 /16s and 83 /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: 3627 Total RIPE prefixes after maximum aggregation: 2878 RIPE Deaggregation factor: 1.26 Prefixes being announced from the RIPE address blocks: 3767 Unique aggregates announced from the RIPE address blocks: 3088 RIPE Region origin ASes present in the Internet Routing Table: 687 RIPE Prefixes per ASN: 5.48 RIPE Region origin ASes announcing only one prefix: 306 RIPE Region transit ASes present in the Internet Routing Table: 100 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 13 Number of RIPE region 32-bit ASNs visible in the Routing Table: 144 Number of RIPE addresses announced to Internet: 58020608 Equivalent to 3 /8s, 117 /16s and 83 /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: 1505 Total LACNIC prefixes after maximum aggregation: 672 LACNIC Deaggregation factor: 2.24 Prefixes being announced from the LACNIC address blocks: 1508 Unique aggregates announced from the LACNIC address blocks: 879 LACNIC Region origin ASes present in the Internet Routing Table: 155 LACNIC Prefixes per ASN: 9.73 LACNIC Region origin ASes announcing only one prefix: 51 LACNIC Region transit ASes present in the Internet Routing Table: 25 Average LACNIC Region AS path length visible: 4.7 Max LACNIC Region AS path length visible: 12 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 61 Number of LACNIC addresses announced to Internet: 4126117 Equivalent to 0 /8s, 62 /16s and 245 /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: 1035 Total AfriNIC prefixes after maximum aggregation: 205 AfriNIC Deaggregation factor: 5.05 Prefixes being announced from the AfriNIC address blocks: 1034 Unique aggregates announced from the AfriNIC address blocks: 290 AfriNIC Region origin ASes present in the Internet Routing Table: 51 AfriNIC Prefixes per ASN: 20.27 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: 4.4 Max AfriNIC Region AS path length visible: 15 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 27 Number of AfriNIC addresses announced to Internet: 2645248 Equivalent to 0 /8s, 40 /16s and 93 /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 593 2157 464 SINET-AS Research Organization of Infor 7497 435 182 24 CSTNET-AS-AP Computer Network Informati 1237 188 74 134 KREONET-AS-KR KISTI, KR 58647 177 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 119 18 12 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/CEDIA/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 396982 2609 3586 355 GOOGLE-CLOUD-PLATFORM, US 16509 1936 1631 770 AMAZON-02, US 15169 796 2254 63 GOOGLE, US 14618 739 3994 550 AMAZON-AES, US 376 200 178 149 RISQ-AS, CA 5786 199 16 1 UPRENET, PR 2152 152 507 92 CSUNET-NW, US 18558 134 18 4 NETBLK-RCOEK, US 270 120 329 85 AS270, US 23024 113 7 17 OCDE, US Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 281 1919 249 DFN Verein zur Foerderung eines Deutsch 786 186 1775 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 96 1518 85 SURFNET-NL SURFnet, The Netherlands, NL 2614 94 27 74 ROEDUNET, RO 137 82 677 77 ASGARR Consortium GARR, IT 553 73 449 73 BELWUE BelWue-Koordination, DE 1930 65 81 60 RCCN Fundacao para a Ciencia e a Tecnol 2200 64 599 59 FR-RENATER Reseau National de telecommu Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 180 208 44 Rede Nacional de Ensino e Pesquisa, BR 28391 153 10 67 Universidad Juarez Autonoma de Tabasco, 11340 114 25 50 Red Universitaria Nacional, CL 27947 113 0 86 Telconet S.A, EC 1251 58 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 19611 37 17 2 Associacao Antonio Vieira - Unisinos, B 28571 37 40 18 UNIVERSIDADE DE SAO PAULO, BR 263282 37 5 12 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 2018 376 319 72 TENET-1, ZA 36914 254 82 3 KENET-AS, KE 2561 67 4 34 EUN, EG 327687 59 28 3 RENU, UG 8094 48 48 15 PUKNET, ZA 3208 32 2 1 ARN, DZ 327700 32 16 1 MoRENet, MZ 37182 31 8 1 TERNET, TZ 6879 24 2 9 ENSTINET-, EG 37074 13 8 2 UG-AS, GH Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 396982 2609 3586 355 GOOGLE-CLOUD-PLATFORM, US 16509 1936 1631 770 AMAZON-02, US 15169 796 2254 63 GOOGLE, US 14618 739 3994 550 AMAZON-AES, US 2907 593 2157 464 SINET-AS Research Organization of Infor 7497 435 182 24 CSTNET-AS-AP Computer Network Informati 2018 376 319 72 TENET-1, ZA 680 281 1919 249 DFN Verein zur Foerderung eines Deutsch 36914 254 82 3 KENET-AS, KE 376 200 178 149 RISQ-AS, CA Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 16509 1936 1166 AMAZON-02, US 15169 796 733 GOOGLE, US 7497 435 411 CSTNET-AS-AP Computer Network Information Cente 2018 376 304 TENET-1, ZA 36914 254 251 KENET-AS, KE 5786 199 198 UPRENET, PR 14618 739 189 AMAZON-AES, US 58647 177 175 KAGAWAU-AS Kagawa University, JP 8895 177 173 ISU Internet Services Unit ISU, SA 1916 180 136 Rede Nacional de Ensino e Pesquisa, BR Complete listing at https://bgp.nsrc.org/REN/CEDIA/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 18621 UNALLOCATED 142.156.0.0/16 26677 ORION-ASN, CA 33008 UNALLOCATED 162.248.66.0/24 11096 FLORIDANET, US 64507 DOCUMENT 170.79.91.8/29 27817 Red Nacional Academica de Te 19658 UNALLOCATED 199.27.241.0/24 11096 FLORIDANET, US 394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, US Complete listing at https://bgp.nsrc.org/REN/CEDIA/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: 27750 Cooperacion Latino Americana de Redes Av 192.31.196.0/24 Origin: 112 UNASSIGNED 192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL 198.135.168.0/24 Origin: 14618 AMAZON-AES, US 198.135.168.0/24 Transit: 16509 AMAZON-02, US 216.169.147.0/24 Origin: 14618 AMAZON-AES, US 216.169.147.0/24 Transit: 16509 AMAZON-02, US Complete listing at https://bgp.nsrc.org/REN/CEDIA/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 /11:4 /12:20 /13:34 /14:81 /15:160 /16:2087 /17:490 /18:474 /19:722 /20:2781 /21:1011 /22:1621 /23:1700 /24:13291 /25:90 /26:60 /27:96 /28:26 /29:75 /30:38 /31:30 /32:9 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 16509 282 1936 AMAZON-02, US 15169 271 796 GOOGLE, US 14618 246 739 AMAZON-AES, US 36914 241 254 KENET-AS, KE 396982 175 2609 GOOGLE-CLOUD-PLATFORM, US 8895 172 177 ISU Internet Services Unit ISU, SA 27947 91 113 Telconet S.A, EC 32440 79 94 LONI, US 23024 52 113 OCDE, US 46115 32 35 LUTHER, US Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2 3:64 5:17 8:28 12:1 13:42 14:89 15:62 16:29 18:47 23:115 24:3 31:10 34:8 35:48 37:1 38:9 40:1 41:139 42:10 44:5 45:49 46:10 47:1 49:7 50:1 52:556 54:228 58:1 59:20 60:4 61:3 62:12 63:36 64:161 65:13 66:64 67:60 68:10 69:36 70:41 71:3 72:15 74:145 76:45 77:11 78:3 79:10 80:17 81:28 82:6 83:6 84:8 85:47 86:5 87:2 88:1 89:17 91:55 92:3 93:4 94:4 95:2 96:7 97:1 98:11 99:46 101:7 102:15 103:341 104:200 107:33 108:98 109:13 110:2 111:16 114:31 115:1 116:8 117:61 118:32 119:21 121:28 122:8 123:8 124:39 125:4 128:86 129:45 130:142 131:63 132:56 133:149 134:99 135:4 136:282 137:106 138:9 139:18 140:44 141:4 142:248 143:28 144:39 145:2 146:144 147:67 148:201 149:16 150:130 151:12 152:80 153:14 154:30 155:65 156:70 157:34 158:41 159:148 160:27 161:30 162:63 163:80 164:20 165:54 166:1 167:22 168:160 169:14 170:105 171:1 172:113 173:111 174:2 175:32 176:11 177:9 178:1 179:9 180:17 182:1 184:3 185:87 186:3 187:19 188:19 189:3 190:5 191:36 192:1462 193:354 194:130 195:88 196:165 197:157 198:495 199:301 200:210 201:34 202:632 203:429 204:361 205:150 206:199 207:182 208:124 209:157 210:186 211:17 212:172 213:15 216:161 217:11 218:22 219:6 220:17 222:5 223:4 End of report