IPv4 R&E Routing Table Report 20:15 GMT Fri 02 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: 261757 Prefixes after maximum aggregation (per Origin AS): 114508 Deaggregation factor: 2.29 Unique aggregates announced (without unneeded subnets): 135137 Number of IPv4 prefixes with a valid ROA: 117498 Number of IPv4 prefixes with an invalid ROA: 34 Number of IPv4 prefixes with no ROA: 144225 Total ASes present in the Internet Routing Table: 19685 Prefixes per ASN: 13.30 Origin-only ASes present in the Internet Routing Table: 17002 Origin ASes announcing only one prefix: 7726 Transit ASes present in the Internet Routing Table: 2683 Transit-only ASes present in the Internet Routing Table: 707 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: 46309 Number of 32-bit ASNs visible in the Routing Table: 7428 Prefixes from 32-bit ASNs in the Routing Table: 27841 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: 140 Number of addresses announced to Internet: 1551496925 Equivalent to 92 /8s, 121 /16s and 246 /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: 82533 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 32126 Total APNIC prefixes after maximum aggregation: 7533 APNIC Deaggregation factor: 4.26 Prefixes being announced from the APNIC address blocks: 30527 Unique aggregates announced from the APNIC address blocks: 7939 APNIC Region origin ASes present in the Internet Routing Table: 1200 APNIC Prefixes per ASN: 25.44 APNIC Region origin ASes announcing only one prefix: 470 APNIC Region transit ASes present in the Internet Routing Table: 204 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: 547 Number of APNIC addresses announced to Internet: 167516780 Equivalent to 9 /8s, 252 /16s and 26 /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: 125458 Total ARIN prefixes after maximum aggregation: 64645 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 122315 Unique aggregates announced from the ARIN address blocks: 65604 ARIN Region origin ASes present in the Internet Routing Table: 9314 ARIN Prefixes per ASN: 13.13 ARIN Region origin ASes announcing only one prefix: 3881 ARIN Region transit ASes present in the Internet Routing Table: 861 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: 2171 Number of ARIN addresses announced to Internet: 963645665 Equivalent to 57 /8s, 112 /16s and 16 /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: 48763 Total RIPE prefixes after maximum aggregation: 26279 RIPE Deaggregation factor: 1.86 Prefixes being announced from the RIPE address blocks: 50518 Unique aggregates announced from the RIPE address blocks: 36727 RIPE Region origin ASes present in the Internet Routing Table: 4580 RIPE Prefixes per ASN: 11.03 RIPE Region origin ASes announcing only one prefix: 1933 RIPE Region transit ASes present in the Internet Routing Table: 698 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: 1882 Number of RIPE addresses announced to Internet: 281655376 Equivalent to 16 /8s, 201 /16s and 184 /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: 44834 Total LACNIC prefixes after maximum aggregation: 13526 LACNIC Deaggregation factor: 3.31 Prefixes being announced from the LACNIC address blocks: 43963 Unique aggregates announced from the LACNIC address blocks: 20218 LACNIC Region origin ASes present in the Internet Routing Table: 3501 LACNIC Prefixes per ASN: 12.56 LACNIC Region origin ASes announcing only one prefix: 1338 LACNIC Region transit ASes present in the Internet Routing Table: 715 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: 2688 Number of LACNIC addresses announced to Internet: 96838720 Equivalent to 5 /8s, 197 /16s and 164 /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: 10265 Total AfriNIC prefixes after maximum aggregation: 2316 AfriNIC Deaggregation factor: 4.43 Prefixes being announced from the AfriNIC address blocks: 14294 Unique aggregates announced from the AfriNIC address blocks: 4527 AfriNIC Region origin ASes present in the Internet Routing Table: 262 AfriNIC Prefixes per ASN: 54.56 AfriNIC Region origin ASes announcing only one prefix: 104 AfriNIC Region transit ASes present in the Internet Routing Table: 71 Average AfriNIC Region AS path length visible: 6.5 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 140 Number of AfriNIC addresses announced to Internet: 41780736 Equivalent to 2 /8s, 125 /16s and 134 /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 976 62 423 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 638 2170 464 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 13231 39693 4328 AMAZON-02, US 22773 3378 3017 175 ASN-CXA-ALL-CCI-22773-RDC, US 749 3254 54863 2505 DNIC-AS-00749, US 4155 2687 205 1642 USDA-1, US 36352 2514 207 1117 AS-COLOCROSSING, US 367 2433 2903 1180 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 1179 92 966 AKAMAI-ASN1, NL 3257 996 2077 748 GTT-BACKBONE GTT, US 3215 889 4810 291 France Telecom - Orange, FR 25019 886 1304 131 SAUDINETSTC-AS, SA 34984 692 77 414 TELLCOM-AS, TR 8452 660 1842 17 TE-AS TE-AS, EG 203214 584 45 356 HULUMTELE, IQ 8376 574 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 7443 2024 1009 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 1190 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 1490 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 552 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 13231 39693 4328 AMAZON-02, US 9808 10268 8754 92 CHINAMOBILE-CN China Mobile Communication 8151 7443 2024 1009 UNINET, MX 22773 3378 3017 175 ASN-CXA-ALL-CCI-22773-RDC, US 749 3254 54863 2505 DNIC-AS-00749, US 4155 2687 205 1642 USDA-1, US 36352 2514 207 1117 AS-COLOCROSSING, US 367 2433 2903 1180 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 7443 6434 UNINET, MX 22773 3378 3203 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 1490 1474 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 /16:7557 /17:3439 /18:4204 /19:7687 /20:12440 /21:15287 /22:27638 /23:27433 /24:153716 /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 3948 7443 UNINET, MX 22773 2522 3378 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2339 13231 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 2514 AS-COLOCROSSING, US 209 964 1665 CENTURYLINK-US-LEGACY-QWEST, US 19901 962 1240 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) ---------------------------------------------- 1:78 2:471 3:651 4:5 5:799 6:155 7:5 8:633 11:171 12:992 13:311 14:110 15:301 16:244 17:5 18:884 20:176 21:4 22:188 23:2549 24:644 27:21 29:19 31:466 32:9 33:1 34:10 35:133 36:1321 37:1027 38:1919 39:551 40:62 41:939 42:213 43:191 44:34 45:3639 46:953 47:85 49:49 50:348 51:385 52:1379 54:297 55:1087 56:11 57:15 58:18 59:31 60:16 61:71 62:547 63:762 64:1922 65:1083 66:1544 67:953 68:429 69:1115 70:443 71:202 72:768 74:961 75:426 76:249 77:469 78:335 79:284 80:296 81:351 82:755 83:245 84:342 85:468 86:233 87:242 88:277 89:833 90:103 91:937 92:598 93:460 94:937 95:686 96:289 97:68 98:465 99:162 100:35 101:23 102:376 103:1232 104:1435 105:134 106:18 107:1493 108:547 109:388 110:33 111:1916 112:448 113:39 114:42 115:13 116:62 117:1035 118:74 119:131 120:1174 121:46 122:67 123:73 124:56 125:25 128:476 129:307 130:692 131:888 132:561 133:212 134:489 135:111 136:572 137:494 138:875 139:443 140:709 141:450 142:1025 143:650 144:428 145:135 146:675 147:518 148:867 149:769 150:383 151:628 152:496 153:129 154:1859 155:814 156:1515 157:373 158:537 159:685 160:826 161:696 162:968 163:350 164:710 165:768 166:776 167:624 168:1115 169:144 170:1597 171:123 172:1362 173:825 174:249 175:56 176:734 177:825 178:504 179:674 180:45 181:1734 182:29 183:866 184:474 185:3347 186:2019 187:1365 188:777 189:1713 190:4212 191:421 192:5149 193:1818 194:1218 195:926 196:680 197:1545 198:2719 199:4880 200:3595 201:3309 202:1006 203:738 204:2155 205:1926 206:1546 207:1494 208:1419 209:1930 210:308 211:430 212:936 213:839 214:985 215:42 216:2524 217:417 218:516 219:19 220:26 221:304 222:32 223:762 End of report