IPv4 R&E Routing Table Report 20:15 GMT Tue 27 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: 264978 Prefixes after maximum aggregation (per Origin AS): 116065 Deaggregation factor: 2.28 Unique aggregates announced (without unneeded subnets): 135863 Number of IPv4 prefixes with a valid ROA: 119010 Number of IPv4 prefixes with an invalid ROA: 42 Number of IPv4 prefixes with no ROA: 145926 Total ASes present in the Internet Routing Table: 19820 Prefixes per ASN: 13.37 Origin-only ASes present in the Internet Routing Table: 17134 Origin ASes announcing only one prefix: 7793 Transit ASes present in the Internet Routing Table: 2686 Transit-only ASes present in the Internet Routing Table: 705 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: 46522 Number of 32-bit ASNs visible in the Routing Table: 7508 Prefixes from 32-bit ASNs in the Routing Table: 28018 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: 115 Number of addresses announced to Internet: 1558181085 Equivalent to 92 /8s, 223 /16s and 244 /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: 84006 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 32468 Total APNIC prefixes after maximum aggregation: 7450 APNIC Deaggregation factor: 4.36 Prefixes being announced from the APNIC address blocks: 30903 Unique aggregates announced from the APNIC address blocks: 7515 APNIC Region origin ASes present in the Internet Routing Table: 1224 APNIC Prefixes per ASN: 25.25 APNIC Region origin ASes announcing only one prefix: 488 APNIC Region transit ASes present in the Internet Routing Table: 207 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: 567 Number of APNIC addresses announced to Internet: 166623596 Equivalent to 9 /8s, 238 /16s and 121 /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: 126070 Total ARIN prefixes after maximum aggregation: 66042 ARIN Deaggregation factor: 1.91 Prefixes being announced from the ARIN address blocks: 123187 Unique aggregates announced from the ARIN address blocks: 66581 ARIN Region origin ASes present in the Internet Routing Table: 9340 ARIN Prefixes per ASN: 13.19 ARIN Region origin ASes announcing only one prefix: 3900 ARIN Region transit ASes present in the Internet Routing Table: 866 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: 2192 Number of ARIN addresses announced to Internet: 961058017 Equivalent to 57 /8s, 72 /16s and 148 /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: 49505 Total RIPE prefixes after maximum aggregation: 26493 RIPE Deaggregation factor: 1.87 Prefixes being announced from the RIPE address blocks: 51328 Unique aggregates announced from the RIPE address blocks: 37200 RIPE Region origin ASes present in the Internet Routing Table: 4595 RIPE Prefixes per ASN: 11.17 RIPE Region origin ASes announcing only one prefix: 1943 RIPE Region transit ASes present in the Internet Routing Table: 696 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: 1891 Number of RIPE addresses announced to Internet: 285848144 Equivalent to 17 /8s, 9 /16s and 178 /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: 45614 Total LACNIC prefixes after maximum aggregation: 13489 LACNIC Deaggregation factor: 3.38 Prefixes being announced from the LACNIC address blocks: 44728 Unique aggregates announced from the LACNIC address blocks: 20180 LACNIC Region origin ASes present in the Internet Routing Table: 3538 LACNIC Prefixes per ASN: 12.64 LACNIC Region origin ASes announcing only one prefix: 1348 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: 2703 Number of LACNIC addresses announced to Internet: 97608512 Equivalent to 5 /8s, 209 /16s and 99 /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: 11005 Total AfriNIC prefixes after maximum aggregation: 2376 AfriNIC Deaggregation factor: 4.63 Prefixes being announced from the AfriNIC address blocks: 14717 Unique aggregates announced from the AfriNIC address blocks: 4273 AfriNIC Region origin ASes present in the Internet Routing Table: 290 AfriNIC Prefixes per ASN: 50.75 AfriNIC Region origin ASes announcing only one prefix: 114 AfriNIC Region transit ASes present in the Internet Routing Table: 79 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: 155 Number of AfriNIC addresses announced to Internet: 46992128 Equivalent to 2 /8s, 205 /16s and 11 /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 10859 8756 95 CHINAMOBILE-CN China Mobile Communication 56046 1855 811 186 CMNET-JIANGSU-AP China Mobile communicati 56041 1586 715 80 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1483 192 50 CMNET-HUNAN-AP China Mobile communication 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 604 2170 464 SINET-AS Research Organization of Informa 24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 517 848 138 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 13552 40829 5171 AMAZON-02, US 22773 3344 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3231 54784 2482 DNIC-AS-00749, US 4155 2756 209 1688 USDA-1, US 36352 2562 210 1124 AS-COLOCROSSING, US 367 2428 2894 1161 DNIC-ASBLK-00306-00371, US 7018 2073 22882 1526 ATT-INTERNET4, US 11776 1900 259 211 ATLANTICBB-JOHNSTOWN, US 6167 1876 3829 493 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 1182 92 965 AKAMAI-ASN1, NL 3257 933 2077 748 GTT-BACKBONE GTT, US 3215 894 4818 289 France Telecom - Orange, FR 25019 816 1301 129 SAUDINETSTC-AS, SA 8452 779 1841 16 TE-AS TE-AS, EG 34984 688 76 410 TELLCOM-AS, TR 212238 621 44 547 CDNEXT, GB 203214 588 43 378 HULUMTELE, IQ 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 7438 2004 984 UNINET, MX 11830 1990 369 64 Instituto Costarricense de Electricidad y 10620 1888 279 1289 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 11664 1113 278 33 Techtel LMDS Comunicaciones Interactivas 26615 1041 2503 52 TIM SA, BR 18881 883 1127 31 TELEFONICA BRASIL S.A, BR 27651 648 94 35 ENTEL CHILE S.A., CL 28006 647 77 297 CORPORACION NACIONAL DE TELECOMUNICACIONE 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 1481 389 16 LINKdotNET-AS, EG 24835 1049 535 35 RAYA-AS, EG 29571 988 100 74 ORANGE-COTE-IVOIRE, CI 20011 980 185 285 INTERNET-SOLUTIONS, ZA 36992 604 1228 124 ETISALAT-MISR, EG 36935 601 128 168 Vodafone-, EG 36914 550 82 3 KENET-AS, KE 37069 469 1046 15 MOBINIL, EG 36903 457 205 331 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 13552 40829 5171 AMAZON-02, US 9808 10859 8756 95 CHINAMOBILE-CN China Mobile Communication 8151 7438 2004 984 UNINET, MX 22773 3344 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3231 54784 2482 DNIC-AS-00749, US 4155 2756 209 1688 USDA-1, US 36352 2562 210 1124 AS-COLOCROSSING, US 367 2428 2894 1161 DNIC-ASBLK-00306-00371, US 7018 2073 22882 1526 ATT-INTERNET4, US 11830 1990 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 10859 10764 CHINAMOBILE-CN China Mobile Communications Grou 8151 7438 6454 UNINET, MX 22773 3344 3180 ASN-CXA-ALL-CCI-22773-RDC, US 11830 1990 1926 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1900 1689 ATLANTICBB-JOHNSTOWN, US 56046 1855 1669 CMNET-JIANGSU-AP China Mobile communications co 56041 1586 1506 CMNET-ZHEJIANG-AP China Mobile communications c 24863 1481 1465 LINKdotNET-AS, EG 36352 2562 1438 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 /12:150 /13:209 /14:573 /15:1100 /16:7639 /17:3429 /18:4224 /19:7654 /20:12524 /21:15317 /22:27582 /23:28023 /24:156235 /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 3996 7438 UNINET, MX 22773 2497 3344 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2383 13552 AMAZON-02, US 11830 1693 1990 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 10620 1073 1888 Telmex Colombia S.A., CO 36352 1041 2562 AS-COLOCROSSING, US 19901 983 1272 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 2:477 3:789 4:5 5:786 6:155 7:5 8:676 11:171 12:989 13:376 14:115 15:302 16:247 17:6 18:890 20:183 21:4 22:188 23:2585 24:641 27:22 29:19 31:512 32:9 33:1 34:10 35:138 36:1769 37:993 38:1896 39:551 40:62 41:987 42:21 43:206 44:35 45:3576 46:941 47:92 49:20 50:362 51:386 52:1394 54:316 55:1093 56:11 57:20 58:16 59:31 60:16 61:73 62:540 63:753 64:1937 65:1091 66:1620 67:962 68:398 69:1125 70:415 71:200 72:737 74:947 75:319 76:248 77:483 78:355 79:234 80:314 81:374 82:729 83:233 84:338 85:424 86:227 87:208 88:291 89:865 90:104 91:931 92:641 93:483 94:934 95:683 96:289 97:60 98:453 99:182 100:35 101:18 102:353 103:1216 104:1613 105:214 106:3 107:1525 108:548 109:397 110:35 111:1920 112:486 113:39 114:40 115:24 116:62 117:1043 118:62 119:89 120:1245 121:43 122:64 123:76 124:57 125:24 128:493 129:390 130:691 131:922 132:569 133:211 134:496 135:113 136:608 137:507 138:915 139:430 140:716 141:459 142:1025 143:694 144:437 145:132 146:675 147:517 148:878 149:762 150:351 151:644 152:475 153:125 154:1678 155:861 156:1341 157:384 158:544 159:722 160:811 161:637 162:990 163:427 164:720 165:774 166:791 167:621 168:1123 169:154 170:1584 171:121 172:1411 173:847 174:253 175:58 176:781 177:864 178:503 179:687 180:47 181:1873 182:29 183:955 184:450 185:3514 186:2387 187:1431 188:831 189:1757 190:4333 191:447 192:5195 193:1866 194:1225 195:927 196:681 197:1566 198:2740 199:4920 200:3701 201:3284 202:997 203:739 204:2158 205:1961 206:1560 207:1519 208:1441 209:1973 210:297 211:419 212:1030 213:779 214:977 215:42 216:2534 217:427 218:524 219:18 220:28 221:350 222:31 223:805 End of report