IPv4 R&E Routing Table Report 20:15 GMT Thu 01 May, 2025 IPv4 BGP Table (R&E) as seen at KREONet2. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/KREONet2/ Analysis Summary ---------------- BGP routing table entries examined: 261326 Prefixes after maximum aggregation (per Origin AS): 114416 Deaggregation factor: 2.28 Unique aggregates announced (without unneeded subnets): 135108 Number of IPv4 prefixes with a valid ROA: 116918 Number of IPv4 prefixes with an invalid ROA: 41 Number of IPv4 prefixes with no ROA: 144367 Total ASes present in the Internet Routing Table: 19684 Prefixes per ASN: 13.28 Origin-only ASes present in the Internet Routing Table: 17009 Origin ASes announcing only one prefix: 7732 Transit ASes present in the Internet Routing Table: 2675 Transit-only ASes present in the Internet Routing Table: 716 Paths with bogon ASNs present in the IPv4 Routing Table: 6 Average AS path length visible in the Internet Routing Table: 5.8 Max AS path length visible: 38 Max AS path prepend of ASN ( 37447) 34 Prefixes from unregistered ASNs in the Routing Table: 311 Number of instances of unregistered ASNs: 312 Number of 32-bit ASNs allocated by the RIRs: 46308 Number of 32-bit ASNs visible in the Routing Table: 7418 Prefixes from 32-bit ASNs in the Routing Table: 27643 Number of bogon 32-bit ASNs visible in the Routing Table: 4 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 143 Number of addresses announced to Internet: 1551138525 Equivalent to 92 /8s, 116 /16s and 126 /24s Percentage of available address space announced: 41.9 Percentage of allocated address space announced: 41.9 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: 82445 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 31948 Total APNIC prefixes after maximum aggregation: 7454 APNIC Deaggregation factor: 4.29 Prefixes being announced from the APNIC address blocks: 30455 Unique aggregates announced from the APNIC address blocks: 7888 APNIC Region origin ASes present in the Internet Routing Table: 1200 APNIC Prefixes per ASN: 25.38 APNIC Region origin ASes announcing only one prefix: 468 APNIC Region transit ASes present in the Internet Routing Table: 202 Average APNIC Region AS path length visible: 7.3 Max APNIC Region AS path length visible: 19 Number of APNIC region 32-bit ASNs visible in the Routing Table: 544 Number of APNIC addresses announced to Internet: 167510124 Equivalent to 9 /8s, 252 /16s and 0 /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, 131072-155961 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: 125567 Total ARIN prefixes after maximum aggregation: 64683 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 122405 Unique aggregates announced from the ARIN address blocks: 65655 ARIN Region origin ASes present in the Internet Routing Table: 9318 ARIN Prefixes per ASN: 13.14 ARIN Region origin ASes announcing only one prefix: 3892 ARIN Region transit ASes present in the Internet Routing Table: 859 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 26 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2172 Number of ARIN addresses announced to Internet: 963624929 Equivalent to 57 /8s, 111 /16s and 191 /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: 48665 Total RIPE prefixes after maximum aggregation: 26269 RIPE Deaggregation factor: 1.85 Prefixes being announced from the RIPE address blocks: 50439 Unique aggregates announced from the RIPE address blocks: 36704 RIPE Region origin ASes present in the Internet Routing Table: 4583 RIPE Prefixes per ASN: 11.01 RIPE Region origin ASes announcing only one prefix: 1941 RIPE Region transit ASes present in the Internet Routing Table: 691 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 27 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1883 Number of RIPE addresses announced to Internet: 281656656 Equivalent to 16 /8s, 201 /16s and 189 /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: 44507 Total LACNIC prefixes after maximum aggregation: 13453 LACNIC Deaggregation factor: 3.31 Prefixes being announced from the LACNIC address blocks: 43641 Unique aggregates announced from the LACNIC address blocks: 20146 LACNIC Region origin ASes present in the Internet Routing Table: 3479 LACNIC Prefixes per ASN: 12.54 LACNIC Region origin ASes announcing only one prefix: 1324 LACNIC Region transit ASes present in the Internet Routing Table: 713 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 2675 Number of LACNIC addresses announced to Internet: 96776256 Equivalent to 5 /8s, 196 /16s and 176 /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: 10328 Total AfriNIC prefixes after maximum aggregation: 2348 AfriNIC Deaggregation factor: 4.40 Prefixes being announced from the AfriNIC address blocks: 14243 Unique aggregates announced from the AfriNIC address blocks: 4590 AfriNIC Region origin ASes present in the Internet Routing Table: 267 AfriNIC Prefixes per ASN: 53.34 AfriNIC Region origin ASes announcing only one prefix: 107 AfriNIC Region transit ASes present in the Internet Routing Table: 73 Average AfriNIC Region AS path length visible: 6.6 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 144 Number of AfriNIC addresses announced to Internet: 41510144 Equivalent to 2 /8s, 121 /16s and 101 /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 9808 10268 8754 92 CHINAMOBILE-CN China Mobile Communication 56046 1622 811 186 CMNET-JIANGSU-AP China Mobile communicati 56041 1569 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1486 192 53 CMNET-HUNAN-AP China Mobile communication 17561 907 57 379 LCS-AS-AP LARUS Limited, HK 24547 852 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 771 500 72 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 639 2170 465 SINET-AS Research Organization of Informa 24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 500 796 137 ALIBABA-CN-NET Alibaba US Technology Co., Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13212 39692 4245 AMAZON-02, US 22773 3380 3017 174 ASN-CXA-ALL-CCI-22773-RDC, US 749 3253 54863 2504 DNIC-AS-00749, US 4155 2684 204 1644 USDA-1, US 36352 2506 206 1114 AS-COLOCROSSING, US 367 2442 2904 1187 DNIC-ASBLK-00306-00371, US 7018 2103 22891 1551 ATT-INTERNET4, US 11776 1895 258 216 ATLANTICBB-JOHNSTOWN, US 6167 1856 3733 470 CELLCO-PART, US 209 1665 4890 275 CENTURYLINK-US-LEGACY-QWEST, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 39891 1936 130 50 ALJAWWALSTC-AS, SA 20940 1178 92 965 AKAMAI-ASN1, NL 3257 996 2077 748 GTT-BACKBONE GTT, US 3215 889 4810 291 France Telecom - Orange, FR 25019 812 1301 129 SAUDINETSTC-AS, SA 34984 692 77 414 TELLCOM-AS, TR 8452 659 1842 17 TE-AS TE-AS, EG 203214 582 45 358 HULUMTELE, IQ 8376 573 53 22 Jordan Data Communications, JO 51167 568 113 251 CONTABO, DE Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 7295 2025 1007 UNINET, MX 11830 1995 369 64 Instituto Costarricense de Electricidad y 10620 1929 286 1300 Telmex Colombia S.A., CO 3816 1332 784 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1189 371 22 Telefonica del Peru S.A.A., PE 26615 1013 2503 52 TIM SA, BR 18881 882 1127 31 TELEFONICA BRASIL S.A, BR 27651 648 94 35 ENTEL CHILE S.A., CL 28006 644 77 297 CORPORACION NACIONAL DE TELECOMUNICACIONE 26599 550 2884 69 TELEFONICA BRASIL S.A, BR Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 1491 389 16 LINKdotNET-AS, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 29571 971 100 75 ORANGE-COTE-IVOIRE, CI 24835 882 552 38 RAYA-AS, EG 36935 699 135 175 Vodafone-, EG 36992 603 1228 124 ETISALAT-MISR, EG 36914 543 82 3 KENET-AS, KE 37069 465 1046 15 MOBINIL, EG 36903 410 192 301 MT-MPLS, MA 2018 373 318 69 TENET-1, ZA Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13212 39692 4245 AMAZON-02, US 9808 10268 8754 92 CHINAMOBILE-CN China Mobile Communication 8151 7295 2025 1007 UNINET, MX 22773 3380 3017 174 ASN-CXA-ALL-CCI-22773-RDC, US 749 3253 54863 2504 DNIC-AS-00749, US 4155 2684 204 1644 USDA-1, US 36352 2506 206 1114 AS-COLOCROSSING, US 367 2442 2904 1187 DNIC-ASBLK-00306-00371, US 7018 2103 22891 1551 ATT-INTERNET4, US 11830 1995 369 64 Instituto Costarricense de Electricidad y Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 10268 10176 CHINAMOBILE-CN China Mobile Communications Grou 8151 7295 6288 UNINET, MX 22773 3380 3206 ASN-CXA-ALL-CCI-22773-RDC, US 11830 1995 1931 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1895 1679 ATLANTICBB-JOHNSTOWN, US 56041 1569 1491 CMNET-ZHEJIANG-AP China Mobile communications c 24863 1491 1475 LINKdotNET-AS, EG 56046 1622 1436 CMNET-JIANGSU-AP China Mobile communications co 56047 1486 1433 CMNET-HUNAN-AP China Mobile communications corp Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 22542 UNALLOCATED 8.42.195.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.42.219.0/24 3356 LEVEL3, US 399953 UNALLOCATED 12.9.122.0/24 7018 ATT-INTERNET4, US 13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.152.48.0/24 Origin: 46167 RESERVED, ZZ 23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US 23.158.216.0/24 Origin: 204535 RESERVED, ZZ 23.158.216.0/24 Transit: 22427 GNET-AS, US 23.166.120.0/24 Origin: 59993 UILLLC-20230328, US 23.166.120.0/24 Transit: 30456 COSMIC-GLOBAL, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/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 /8:13 /9:10 /10:29 /11:41 /12:151 /13:214 /14:577 /15:1096 /16:7556 /17:3441 /18:4198 /19:7675 /20:12353 /21:15349 /22:27543 /23:27371 /24:153484 /25:61 /26:84 /27:36 /28:13 /29:16 /30:10 /31:0 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3751 7295 UNINET, MX 22773 2524 3380 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2348 13212 AMAZON-02, US 11830 1696 1995 Instituto Costarricense de Electricidad y Telecom., CR 10620 1088 1929 Telmex Colombia S.A., CO 39891 1081 1936 ALJAWWALSTC-AS, SA 36352 1012 2506 AS-COLOCROSSING, US 209 964 1665 CENTURYLINK-US-LEGACY-QWEST, US 19901 959 1236 BRSPD-PUBLIC, US 11776 883 1895 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:66 2:471 3:641 4:5 5:797 6:155 7:5 8:632 11:171 12:996 13:303 14:109 15:301 16:244 17:5 18:882 20:176 21:4 22:188 23:2557 24:643 27:21 29:19 31:462 32:9 33:1 34:10 35:135 36:1320 37:1014 38:1908 39:551 40:62 41:927 42:213 43:190 44:34 45:3611 46:953 47:85 49:19 50:350 51:385 52:1381 54:297 55:1087 56:11 57:15 58:18 59:31 60:16 61:72 62:547 63:761 64:1935 65:1091 66:1543 67:955 68:429 69:1121 70:443 71:203 72:770 74:961 75:426 76:249 77:468 78:334 79:283 80:295 81:352 82:753 83:245 84:342 85:468 86:233 87:241 88:276 89:836 90:103 91:933 92:597 93:459 94:937 95:684 96:292 97:66 98:466 99:162 100:35 101:20 102:375 103:1236 104:1443 105:132 106:16 107:1493 108:550 109:389 110:33 111:1916 112:449 113:39 114:43 115:13 116:62 117:1036 118:63 119:130 120:1174 121:46 122:67 123:71 124:56 125:25 128:474 129:307 130:694 131:893 132:562 133:212 134:494 135:111 136:578 137:499 138:866 139:444 140:711 141:448 142:1024 143:645 144:428 145:134 146:673 147:518 148:867 149:774 150:386 151:628 152:481 153:131 154:1834 155:811 156:1476 157:373 158:537 159:683 160:827 161:692 162:968 163:349 164:711 165:763 166:773 167:628 168:1107 169:143 170:1600 171:123 172:1365 173:829 174:250 175:56 176:734 177:833 178:503 179:670 180:45 181:1731 182:29 183:866 184:475 185:3337 186:2024 187:1251 188:780 189:1696 190:4205 191:419 192:5144 193:1816 194:1217 195:920 196:679 197:1644 198:2719 199:4888 200:3580 201:3299 202:1000 203:738 204:2156 205:1934 206:1548 207:1495 208:1418 209:1934 210:308 211:430 212:933 213:846 214:983 215:42 216:2530 217:418 218:516 219:19 220:26 221:304 222:32 223:761 End of report