IPv4 R&E Routing Table Report 22:10 GMT Sat 16 Sep, 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: 25381 Prefixes after maximum aggregation (per Origin AS): 12513 Deaggregation factor: 2.03 Unique aggregates announced (without unneeded subnets): 14119 Number of IPv4 prefixes with a valid ROA: 11728 Number of IPv4 prefixes with an invalid ROA: 208 Number of IPv4 prefixes with no ROA: 13445 Total ASes present in the Internet Routing Table: 2761 Prefixes per ASN: 9.19 Origin-only ASes present in the Internet Routing Table: 2372 Origin ASes announcing only one prefix: 1045 Transit ASes present in the Internet Routing Table: 389 Transit-only ASes present in the Internet Routing Table: 72 Paths with bogon ASNs present in the IPv4 Routing Table: 1 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 16 Max AS path prepend of ASN (395156) 12 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: 42627 Number of 32-bit ASNs visible in the Routing Table: 636 Prefixes from 32-bit ASNs in the Routing Table: 4696 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: 5 Number of addresses announced to Internet: 242181032 Equivalent to 14 /8s, 111 /16s and 99 /24s Percentage of available address space announced: 6.5 Percentage of allocated address space announced: 6.5 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: 3365 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4679 Total APNIC prefixes after maximum aggregation: 2298 APNIC Deaggregation factor: 2.04 Prefixes being announced from the APNIC address blocks: 4722 Unique aggregates announced from the APNIC address blocks: 2666 APNIC Region origin ASes present in the Internet Routing Table: 547 APNIC Prefixes per ASN: 8.63 APNIC Region origin ASes announcing only one prefix: 228 APNIC Region transit ASes present in the Internet Routing Table: 59 Average APNIC Region AS path length visible: 5.8 Max APNIC Region AS path length visible: 16 Number of APNIC region 32-bit ASNs visible in the Routing Table: 206 Number of APNIC addresses announced to Internet: 45652032 Equivalent to 2 /8s, 184 /16s and 152 /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: 14327 Total ARIN prefixes after maximum aggregation: 6431 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 14130 Unique aggregates announced from the ARIN address blocks: 7199 ARIN Region origin ASes present in the Internet Routing Table: 1229 ARIN Prefixes per ASN: 11.50 ARIN Region origin ASes announcing only one prefix: 430 ARIN Region transit ASes present in the Internet Routing Table: 163 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 16 Number of ARIN region 32-bit ASNs visible in the Routing Table: 193 Number of ARIN addresses announced to Internet: 131511137 Equivalent to 7 /8s, 214 /16s and 179 /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: 3665 Total RIPE prefixes after maximum aggregation: 2903 RIPE Deaggregation factor: 1.26 Prefixes being announced from the RIPE address blocks: 3814 Unique aggregates announced from the RIPE address blocks: 3134 RIPE Region origin ASes present in the Internet Routing Table: 694 RIPE Prefixes per ASN: 5.50 RIPE Region origin ASes announcing only one prefix: 304 RIPE Region transit ASes present in the Internet Routing Table: 108 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 14 Number of RIPE region 32-bit ASNs visible in the Routing Table: 144 Number of RIPE addresses announced to Internet: 58035840 Equivalent to 3 /8s, 117 /16s and 142 /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, 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: 1645 Total LACNIC prefixes after maximum aggregation: 703 LACNIC Deaggregation factor: 2.34 Prefixes being announced from the LACNIC address blocks: 1649 Unique aggregates announced from the LACNIC address blocks: 895 LACNIC Region origin ASes present in the Internet Routing Table: 166 LACNIC Prefixes per ASN: 9.93 LACNIC Region origin ASes announcing only one prefix: 57 LACNIC Region transit ASes present in the Internet Routing Table: 29 Average LACNIC Region AS path length visible: 4.5 Max LACNIC Region AS path length visible: 13 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 67 Number of LACNIC addresses announced to Internet: 4255623 Equivalent to 0 /8s, 64 /16s and 239 /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: 1061 Total AfriNIC prefixes after maximum aggregation: 174 AfriNIC Deaggregation factor: 6.10 Prefixes being announced from the AfriNIC address blocks: 1061 Unique aggregates announced from the AfriNIC address blocks: 220 AfriNIC Region origin ASes present in the Internet Routing Table: 50 AfriNIC Prefixes per ASN: 21.22 AfriNIC Region origin ASes announcing only one prefix: 26 AfriNIC Region transit ASes present in the Internet Routing Table: 9 Average AfriNIC Region AS path length visible: 4.3 Max AfriNIC Region AS path length visible: 10 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 26 Number of AfriNIC addresses announced to Internet: 2659840 Equivalent to 0 /8s, 40 /16s and 150 /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 601 2162 465 SINET-AS Research Organization of Infor 7497 435 180 23 CSTNET-AS-AP Computer Network Informati 1237 195 74 141 KREONET-AS-KR KISTI, KR 7575 177 329 120 AARNET-AS-AP Australian Academic and Re 58647 177 18 2 KAGAWAU-AS Kagawa University, JP 4538 130 4192 73 ERX-CERNET-BKB China Education and Rese 55824 127 19 17 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 63 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 2698 3597 392 GOOGLE-CLOUD-PLATFORM, US 16509 2137 1636 843 AMAZON-02, US 15169 827 1997 61 GOOGLE, US 14618 813 4019 611 AMAZON-AES, US 376 201 178 150 RISQ-AS, CA 5786 196 16 1 UPRENET, PR 36492 157 11 35 GOOGLEWIFI, US 2152 141 507 92 CSUNET-NW, US 18558 141 18 4 NETBLK-RCOEK, US 81 127 521 30 NCREN, 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 680 283 1903 249 DFN Verein zur Foerderung eines Deutsch 786 185 1767 182 JANET Jisc Services Limited, GB 8895 163 24 5 ISU Internet Services Unit ISU, SA 559 113 533 105 SWITCH Peering requests: peering@switch 1103 94 1502 83 SURFNET-NL SURFnet, The Netherlands, NL 2614 94 27 74 ROEDUNET, RO 137 82 677 77 ASGARR Consortium GARR, IT 553 74 465 74 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 261 176 43 Rede Nacional de Ensino e Pesquisa, BR 28391 153 10 67 Universidad Juarez Autonoma de Tabasco, 27947 125 0 95 Telconet S.A, EC 11340 114 25 55 Red Universitaria Nacional, CL 271640 72 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 2715 59 102 39 Fundacao Carlos Chagas Filho de Amparo 4270 48 16 1 Red de Interconexion Universitaria, AR 19611 48 17 2 Associacao Antonio Vieira - Unisinos, B 28614 38 2 2 Fundacao Universidade Regional de Blume 3596 35 4 3 Universidad Autonoma Metropolitana, MX 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 382 319 71 TENET-1, ZA 36914 252 82 3 KENET-AS, KE 327687 165 28 3 RENU, UG 8094 47 48 18 PUKNET, ZA 327700 42 16 1 MoRENet, MZ 3208 32 2 1 ARN, DZ 6879 24 2 9 ENSTINET-, EG 37074 14 8 2 UG-AS, GH 37501 11 49 6 UOFS, ZA 37654 10 1 6 RwEdNet-AS, RW 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 2698 3597 392 GOOGLE-CLOUD-PLATFORM, US 16509 2137 1636 843 AMAZON-02, US 15169 827 1997 61 GOOGLE, US 14618 813 4019 611 AMAZON-AES, US 2907 601 2162 465 SINET-AS Research Organization of Infor 7497 435 180 23 CSTNET-AS-AP Computer Network Informati 2018 382 319 71 TENET-1, ZA 680 283 1903 249 DFN Verein zur Foerderung eines Deutsch 1916 261 176 43 Rede Nacional de Ensino e Pesquisa, BR 36914 252 82 3 KENET-AS, KE 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 2137 1294 AMAZON-02, US 15169 827 766 GOOGLE, US 7497 435 412 CSTNET-AS-AP Computer Network Information Cente 2018 382 311 TENET-1, ZA 36914 252 249 KENET-AS, KE 1916 261 218 Rede Nacional de Ensino e Pesquisa, BR 14618 813 202 AMAZON-AES, US 5786 196 195 UPRENET, PR 58647 177 175 KAGAWAU-AS Kagawa University, JP 327687 165 162 RENU, UG 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 33008 UNALLOCATED 162.248.66.0/24 11096 FLORIDANET, US 64507 DOCUMENT 170.79.91.8/29 27817 Red Nacional Academica de Te 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 134.208.0.0/16 Origin: 17711 NDHU-TW National Dong Hwa University, TW 134.208.0.0/16 Transit: 7539 TWAREN-TW National Center for High-perfo 170.39.88.0/24 Origin: 14618 AMAZON-AES, US 170.39.88.0/24 Transit: 16509 AMAZON-02, US 192.31.196.0/24 Origin: 112 RESERVED, ZZ 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 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/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 /12:19 /13:34 /14:81 /15:161 /16:2093 /17:502 /18:468 /19:714 /20:2778 /21:1027 /22:1652 /23:1710 /24:13704 /25:91 /26:70 /27:78 /28:22 /29:85 /30:41 /31:35 /32:9 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 16509 295 2137 AMAZON-02, US 15169 275 827 GOOGLE, US 14618 265 813 AMAZON-AES, US 36914 241 252 KENET-AS, KE 396982 197 2698 GOOGLE-CLOUD-PLATFORM, US 8895 158 163 ISU Internet Services Unit ISU, SA 27947 98 125 Telconet S.A, EC 32440 80 109 LONI, US 23024 52 113 OCDE, US 1916 40 261 Rede Nacional de Ensino e Pesquisa, BR Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2 3:77 5:20 8:28 12:1 13:45 14:89 15:70 16:112 18:59 23:111 24:3 31:9 34:21 35:47 38:9 40:1 41:117 42:10 43:1 44:8 45:60 46:11 47:1 49:9 50:3 52:558 54:228 58:1 59:19 60:4 61:3 62:12 63:37 64:163 65:13 66:70 67:60 68:13 69:36 70:43 71:3 72:13 74:137 76:46 77:11 78:3 79:10 80:13 81:27 82:6 83:6 84:10 85:46 86:10 87:2 88:1 89:17 91:58 92:4 93:4 94:4 95:2 96:7 97:1 98:11 99:47 101:3 102:29 103:294 104:212 107:33 108:101 109:12 111:16 114:31 115:1 116:8 117:61 118:32 119:18 121:28 122:8 123:8 124:40 125:4 128:87 129:48 130:143 131:63 132:60 133:152 134:105 135:3 136:292 137:143 138:10 139:17 140:38 141:4 142:277 143:22 144:39 145:3 146:143 147:64 148:201 149:17 150:44 151:16 152:149 153:14 154:31 155:73 156:68 157:23 158:40 159:148 160:29 161:36 162:85 163:86 164:20 165:50 166:1 167:22 168:159 169:11 170:133 171:1 172:114 173:114 174:2 175:26 176:11 177:5 178:1 179:9 180:15 182:1 184:7 185:106 186:3 187:18 188:19 189:3 190:5 191:13 192:1485 193:310 194:129 195:89 196:203 197:165 198:501 199:300 200:331 201:36 202:633 203:430 204:365 205:147 206:204 207:190 208:132 209:163 210:191 211:14 212:170 213:15 216:166 217:12 218:22 219:5 220:16 222:2 223:14 End of report