IPv4 R&E Routing Table Report 20:15 GMT Thu 29 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: 266529 Prefixes after maximum aggregation (per Origin AS): 117708 Deaggregation factor: 2.26 Unique aggregates announced (without unneeded subnets): 137633 Number of IPv4 prefixes with a valid ROA: 120035 Number of IPv4 prefixes with an invalid ROA: 41 Number of IPv4 prefixes with no ROA: 146453 Total ASes present in the Internet Routing Table: 19862 Prefixes per ASN: 13.42 Origin-only ASes present in the Internet Routing Table: 17147 Origin ASes announcing only one prefix: 7800 Transit ASes present in the Internet Routing Table: 2715 Transit-only ASes present in the Internet Routing Table: 712 Paths with bogon ASNs present in the IPv4 Routing Table: 9 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: 316 Number of instances of unregistered ASNs: 320 Number of 32-bit ASNs allocated by the RIRs: 46539 Number of 32-bit ASNs visible in the Routing Table: 7501 Prefixes from 32-bit ASNs in the Routing Table: 28071 Number of bogon 32-bit ASNs visible in the Routing Table: 10 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 114 Number of addresses announced to Internet: 1560033757 Equivalent to 92 /8s, 252 /16s and 57 /24s Percentage of available address space announced: 42.1 Percentage of allocated address space announced: 42.1 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: 83793 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 33696 Total APNIC prefixes after maximum aggregation: 8273 APNIC Deaggregation factor: 4.07 Prefixes being announced from the APNIC address blocks: 32092 Unique aggregates announced from the APNIC address blocks: 8519 APNIC Region origin ASes present in the Internet Routing Table: 1218 APNIC Prefixes per ASN: 26.35 APNIC Region origin ASes announcing only one prefix: 475 APNIC Region transit ASes present in the Internet Routing Table: 199 Average APNIC Region AS path length visible: 7.3 Max APNIC Region AS path length visible: 17 Number of APNIC region 32-bit ASNs visible in the Routing Table: 559 Number of APNIC addresses announced to Internet: 167108972 Equivalent to 9 /8s, 245 /16s and 225 /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: 127260 Total ARIN prefixes after maximum aggregation: 66947 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 124346 Unique aggregates announced from the ARIN address blocks: 67448 ARIN Region origin ASes present in the Internet Routing Table: 9426 ARIN Prefixes per ASN: 13.19 ARIN Region origin ASes announcing only one prefix: 3931 ARIN Region transit ASes present in the Internet Routing Table: 881 Average ARIN Region AS path length visible: 5.4 Max ARIN Region AS path length visible: 26 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2222 Number of ARIN addresses announced to Internet: 962837473 Equivalent to 57 /8s, 99 /16s and 187 /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: 49766 Total RIPE prefixes after maximum aggregation: 26570 RIPE Deaggregation factor: 1.87 Prefixes being announced from the RIPE address blocks: 51593 Unique aggregates announced from the RIPE address blocks: 37347 RIPE Region origin ASes present in the Internet Routing Table: 4617 RIPE Prefixes per ASN: 11.17 RIPE Region origin ASes announcing only one prefix: 1948 RIPE Region transit ASes present in the Internet Routing Table: 703 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1899 Number of RIPE addresses announced to Internet: 285766480 Equivalent to 17 /8s, 8 /16s and 115 /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: 44501 Total LACNIC prefixes after maximum aggregation: 13347 LACNIC Deaggregation factor: 3.33 Prefixes being announced from the LACNIC address blocks: 43632 Unique aggregates announced from the LACNIC address blocks: 19882 LACNIC Region origin ASes present in the Internet Routing Table: 3467 LACNIC Prefixes per ASN: 12.58 LACNIC Region origin ASes announcing only one prefix: 1330 LACNIC Region transit ASes present in the Internet Routing Table: 722 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: 2664 Number of LACNIC addresses announced to Internet: 97303104 Equivalent to 5 /8s, 204 /16s and 186 /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: 10990 Total AfriNIC prefixes after maximum aggregation: 2356 AfriNIC Deaggregation factor: 4.66 Prefixes being announced from the AfriNIC address blocks: 14752 Unique aggregates announced from the AfriNIC address blocks: 4324 AfriNIC Region origin ASes present in the Internet Routing Table: 294 AfriNIC Prefixes per ASN: 50.18 AfriNIC Region origin ASes announcing only one prefix: 116 AfriNIC Region transit ASes present in the Internet Routing Table: 80 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: 157 Number of AfriNIC addresses announced to Internet: 46967296 Equivalent to 2 /8s, 204 /16s and 170 /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 10884 8756 96 CHINAMOBILE-CN China Mobile Communication 56046 1924 811 187 CMNET-JIANGSU-AP China Mobile communicati 56041 1678 721 100 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1483 192 50 CMNET-HUNAN-AP China Mobile communication 7545 948 115 748 TPG-INTERNET-AP TPG Telecom Limited, AU 24547 864 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 17561 801 51 374 LCS-AS-AP LARUS Limited, HK 24444 778 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 605 2170 465 SINET-AS Research Organization of Informa 24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 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 13544 40826 5182 AMAZON-02, US 22773 3343 3016 166 ASN-CXA-ALL-CCI-22773-RDC, US 749 3231 54784 2482 DNIC-AS-00749, US 4155 2764 210 1702 USDA-1, US 36352 2560 210 1126 AS-COLOCROSSING, US 367 2445 2912 1177 DNIC-ASBLK-00306-00371, US 7018 2072 22882 1525 ATT-INTERNET4, US 11776 1900 259 211 ATLANTICBB-JOHNSTOWN, US 6167 1887 3867 499 CELLCO-PART, US 209 1661 4889 271 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 1188 93 969 AKAMAI-ASN1, NL 3257 955 2078 769 GTT-BACKBONE GTT, US 3215 894 4818 289 France Telecom - Orange, FR 25019 814 1300 125 SAUDINETSTC-AS, SA 8452 779 1841 16 TE-AS TE-AS, EG 34984 675 74 405 TELLCOM-AS, TR 212238 638 46 564 CDNEXT, GB 203214 590 44 383 HULUMTELE, IQ 8376 576 53 21 Jordan Data Communications, JO 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 7389 1999 1006 UNINET, MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 10620 1902 280 1293 Telmex Colombia S.A., CO 3816 1338 785 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1198 371 22 Telefonica del Peru S.A.A., PE 26615 1042 2503 52 TIM SA, BR 18881 884 1127 31 TELEFONICA BRASIL S.A, BR 27651 648 94 35 ENTEL CHILE S.A., CL 28006 647 77 297 CORPORACION NACIONAL DE TELECOMUNICACIONE 26599 552 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 1480 389 16 LINKdotNET-AS, EG 24835 1053 535 35 RAYA-AS, EG 29571 990 100 74 ORANGE-COTE-IVOIRE, CI 20011 980 185 285 INTERNET-SOLUTIONS, ZA 36992 604 1228 124 ETISALAT-MISR, EG 36935 597 128 165 Vodafone-, EG 36914 550 82 3 KENET-AS, KE 37069 469 1046 15 MOBINIL, EG 36903 452 208 317 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 13544 40826 5182 AMAZON-02, US 9808 10884 8756 96 CHINAMOBILE-CN China Mobile Communication 8151 7389 1999 1006 UNINET, MX 22773 3343 3016 166 ASN-CXA-ALL-CCI-22773-RDC, US 749 3231 54784 2482 DNIC-AS-00749, US 4155 2764 210 1702 USDA-1, US 36352 2560 210 1126 AS-COLOCROSSING, US 367 2445 2912 1177 DNIC-ASBLK-00306-00371, US 7018 2072 22882 1525 ATT-INTERNET4, US 11830 1987 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 10884 10788 CHINAMOBILE-CN China Mobile Communications Grou 8151 7389 6383 UNINET, MX 22773 3343 3177 ASN-CXA-ALL-CCI-22773-RDC, US 11830 1987 1923 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 56046 1924 1737 CMNET-JIANGSU-AP China Mobile communications co 11776 1900 1689 ATLANTICBB-JOHNSTOWN, US 56041 1678 1578 CMNET-ZHEJIANG-AP China Mobile communications c 24863 1480 1464 LINKdotNET-AS, EG 36352 2560 1434 AS-COLOCROSSING, US 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 41.78.60.0/22 Origin: 6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A 41.78.60.0/22 Transit: 2914 NTT-DATA-2914, US 41.204.224.0/24 Origin: 36911 RESERVED, ZZ 41.204.224.0/24 Transit: 328766 RESERVED, ZZ 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 /10:30 /11:41 /12:149 /13:209 /14:573 /15:1101 /16:7646 /17:3442 /18:4244 /19:7683 /20:12673 /21:15413 /22:27888 /23:28132 /24:157057 /25:62 /26:82 /27:36 /28:13 /29:16 /30:10 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3967 7389 UNINET, MX 22773 2494 3343 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2383 13544 AMAZON-02, US 11830 1690 1987 Instituto Costarricense de Electricidad y Telecom., CR 10620 1081 1902 Telmex Colombia S.A., CO 39891 1081 1936 ALJAWWALSTC-AS, SA 36352 1037 2560 AS-COLOCROSSING, US 19901 983 1273 BRSPD-PUBLIC, US 209 964 1661 CENTURYLINK-US-LEGACY-QWEST, US 11776 883 1900 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:19 2:475 3:792 4:5 5:790 6:155 7:6 8:678 11:171 12:993 13:375 14:255 15:308 16:247 17:7 18:888 20:185 21:4 22:188 23:2617 24:641 27:75 29:19 31:515 32:11 33:1 34:10 35:139 36:1874 37:1012 38:1912 39:552 40:51 41:982 42:21 43:206 44:42 45:3640 46:944 47:92 49:20 50:368 51:387 52:1402 54:314 55:1098 56:11 57:20 58:16 59:37 60:124 61:80 62:537 63:753 64:1946 65:1083 66:1545 67:974 68:421 69:1127 70:416 71:200 72:731 74:949 75:321 76:256 77:483 78:355 79:236 80:310 81:388 82:713 83:231 84:337 85:428 86:231 87:207 88:290 89:854 90:104 91:931 92:637 93:485 94:931 95:747 96:290 97:60 98:455 99:182 100:35 101:22 102:344 103:1224 104:1625 105:214 106:3 107:1529 108:552 109:406 110:90 111:1919 112:499 113:39 114:40 115:45 116:62 117:1044 118:80 119:89 120:1274 121:43 122:64 123:135 124:67 125:27 128:500 129:397 130:694 131:920 132:572 133:211 134:487 135:116 136:607 137:509 138:900 139:431 140:699 141:462 142:1058 143:696 144:431 145:136 146:689 147:512 148:879 149:760 150:352 151:633 152:489 153:129 154:1680 155:870 156:1381 157:390 158:560 159:741 160:811 161:640 162:1022 163:431 164:719 165:782 166:791 167:657 168:1110 169:156 170:1547 171:122 172:1375 173:845 174:253 175:62 176:781 177:777 178:503 179:680 180:46 181:1817 182:29 183:968 184:452 185:3483 186:2071 187:1434 188:830 189:1753 190:4183 191:447 192:5212 193:1878 194:1226 195:929 196:681 197:1558 198:2749 199:4953 200:3640 201:3255 202:1033 203:841 204:2181 205:1958 206:1551 207:1539 208:1437 209:1927 210:303 211:422 212:1026 213:777 214:980 215:42 216:2803 217:429 218:525 219:18 220:114 221:361 222:31 223:821 End of report