IPv4 R&E Routing Table Report 20:15 GMT Thu 03 Jul, 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: 277532 Prefixes after maximum aggregation (per Origin AS): 120512 Deaggregation factor: 2.30 Unique aggregates announced (without unneeded subnets): 143628 Number of IPv4 prefixes with a valid ROA: 129316 Number of IPv4 prefixes with an invalid ROA: 43 Number of IPv4 prefixes with no ROA: 148173 Total ASes present in the Internet Routing Table: 20949 Prefixes per ASN: 13.25 Origin-only ASes present in the Internet Routing Table: 18034 Origin ASes announcing only one prefix: 8092 Transit ASes present in the Internet Routing Table: 2915 Transit-only ASes present in the Internet Routing Table: 736 Paths with bogon ASNs present in the IPv4 Routing Table: 13 Average AS path length visible in the Internet Routing Table: 5.8 Max AS path length visible: 30 Max AS path prepend of ASN (265171) 25 Prefixes from unregistered ASNs in the Routing Table: 371 Number of instances of unregistered ASNs: 403 Number of 32-bit ASNs allocated by the RIRs: 46744 Number of 32-bit ASNs visible in the Routing Table: 8378 Prefixes from 32-bit ASNs in the Routing Table: 33028 Number of bogon 32-bit ASNs visible in the Routing Table: 74 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 110 Number of addresses announced to Internet: 1636009413 Equivalent to 97 /8s, 131 /16s and 133 /24s Percentage of available address space announced: 44.2 Percentage of allocated address space announced: 44.2 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: 89073 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 33643 Total APNIC prefixes after maximum aggregation: 7497 APNIC Deaggregation factor: 4.49 Prefixes being announced from the APNIC address blocks: 32405 Unique aggregates announced from the APNIC address blocks: 7776 APNIC Region origin ASes present in the Internet Routing Table: 1245 APNIC Prefixes per ASN: 26.03 APNIC Region origin ASes announcing only one prefix: 495 APNIC Region transit ASes present in the Internet Routing Table: 203 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: 596 Number of APNIC addresses announced to Internet: 165213804 Equivalent to 9 /8s, 216 /16s and 246 /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: 126498 Total ARIN prefixes after maximum aggregation: 66486 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 124719 Unique aggregates announced from the ARIN address blocks: 67885 ARIN Region origin ASes present in the Internet Routing Table: 9334 ARIN Prefixes per ASN: 13.36 ARIN Region origin ASes announcing only one prefix: 3880 ARIN Region transit ASes present in the Internet Routing Table: 887 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: 2194 Number of ARIN addresses announced to Internet: 1028439305 Equivalent to 61 /8s, 76 /16s and 189 /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: 50717 Total RIPE prefixes after maximum aggregation: 27426 RIPE Deaggregation factor: 1.85 Prefixes being announced from the RIPE address blocks: 52361 Unique aggregates announced from the RIPE address blocks: 38302 RIPE Region origin ASes present in the Internet Routing Table: 4671 RIPE Prefixes per ASN: 11.21 RIPE Region origin ASes announcing only one prefix: 1975 RIPE Region transit ASes present in the Internet Routing Table: 706 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: 1925 Number of RIPE addresses announced to Internet: 287187536 Equivalent to 17 /8s, 30 /16s and 34 /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: 55453 Total LACNIC prefixes after maximum aggregation: 16427 LACNIC Deaggregation factor: 3.38 Prefixes being announced from the LACNIC address blocks: 53767 Unique aggregates announced from the LACNIC address blocks: 24489 LACNIC Region origin ASes present in the Internet Routing Table: 4544 LACNIC Prefixes per ASN: 11.83 LACNIC Region origin ASes announcing only one prefix: 1632 LACNIC Region transit ASes present in the Internet Routing Table: 897 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3512 Number of LACNIC addresses announced to Internet: 108450816 Equivalent to 6 /8s, 118 /16s and 212 /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: 10850 Total AfriNIC prefixes after maximum aggregation: 2417 AfriNIC Deaggregation factor: 4.49 Prefixes being announced from the AfriNIC address blocks: 14170 Unique aggregates announced from the AfriNIC address blocks: 5067 AfriNIC Region origin ASes present in the Internet Routing Table: 292 AfriNIC Prefixes per ASN: 48.53 AfriNIC Region origin ASes announcing only one prefix: 110 AfriNIC Region transit ASes present in the Internet Routing Table: 75 Average AfriNIC Region AS path length visible: 6.4 Max AfriNIC Region AS path length visible: 19 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 151 Number of AfriNIC addresses announced to Internet: 46603776 Equivalent to 2 /8s, 199 /16s and 30 /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 11374 8759 113 CHINAMOBILE-CN China Mobile Communication 56046 2366 811 188 CMNET-JIANGSU-AP China Mobile communicati 56041 1610 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1482 192 50 CMNET-HUNAN-AP China Mobile communication 24547 873 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 776 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 611 2169 463 SINET-AS Research Organization of Informa 45102 532 883 137 ALIBABA-CN-NET Alibaba US Technology Co., 24445 524 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 17561 510 32 145 LCS-AS-AP LARUS Limited, HK 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 13585 40949 5226 AMAZON-02, US 22773 3335 3015 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3226 54767 2477 DNIC-AS-00749, US 4155 2841 216 1736 USDA-1, US 36352 2562 210 1138 AS-COLOCROSSING, US 367 2456 3164 1161 DNIC-ASBLK-00306-00371, US 6167 1909 3939 521 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 7018 1810 22859 1352 ATT-INTERNET4, US 209 1656 4889 270 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 1186 92 963 AKAMAI-ASN1, NL 3257 1041 2082 805 GTT-BACKBONE GTT, US 3215 887 4818 291 France Telecom - Orange, FR 8452 826 1841 16 TE-AS TE-AS, EG 25019 814 1301 129 SAUDINETSTC-AS, SA 34984 738 80 466 TELLCOM-AS, TR 212238 662 47 586 CDNEXT, GB 8376 576 52 23 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 6580 1800 903 UNINET, MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 10620 1711 248 1231 Telmex Colombia S.A., CO 3816 1344 787 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1195 371 22 Telefonica del Peru S.A.A., PE 26615 1020 2487 55 TIM SA, BR 18881 883 1127 31 TELEFONICA BRASIL S.A, BR 11172 723 124 70 Alestra, S. de R.L. de C.V., MX 28006 648 77 298 CORPORACION NACIONAL DE TELECOMUNICACIONE 27651 647 91 44 ENTEL CHILE S.A., CL 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 1564 389 16 LINKdotNET-AS, EG 29571 1064 100 72 ORANGE-COTE-IVOIRE, CI 24835 980 413 108 RAYA-AS, EG 36992 681 1254 203 ETISALAT-MISR, EG 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36914 567 82 3 KENET-AS, KE 37069 559 1094 15 MOBINIL, EG 36935 475 517 39 Vodafone-, EG 36903 456 204 330 MT-MPLS, MA 2018 374 318 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 13585 40949 5226 AMAZON-02, US 9808 11374 8759 113 CHINAMOBILE-CN China Mobile Communication 8151 6580 1800 903 UNINET, MX 22773 3335 3015 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3226 54767 2477 DNIC-AS-00749, US 4155 2841 216 1736 USDA-1, US 36352 2562 210 1138 AS-COLOCROSSING, US 367 2456 3164 1161 DNIC-ASBLK-00306-00371, US 56046 2366 811 188 CMNET-JIANGSU-AP China Mobile communicati 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 11374 11261 CHINAMOBILE-CN China Mobile Communications Grou 8151 6580 5677 UNINET, MX 22773 3335 3172 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2366 2178 CMNET-JIANGSU-AP China Mobile communications co 11830 1987 1923 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1902 1687 ATLANTICBB-JOHNSTOWN, US 24863 1564 1548 LINKdotNET-AS, EG 56041 1610 1532 CMNET-ZHEJIANG-AP China Mobile communications c 56047 1482 1432 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 13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US 21861 UNALLOCATED 12.37.59.0/24 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 41.67.248.0/22 Origin: 15964 CAMNET-AS, CM 41.67.248.0/22 Transit: 37662 WIOCC-AS, MU 41.67.252.0/23 Origin: 15964 CAMNET-AS, CM 41.67.252.0/23 Transit: 37662 WIOCC-AS, MU 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 /8:14 /9:11 /10:31 /11:51 /12:158 /13:219 /14:589 /15:1109 /16:7613 /17:3494 /18:4264 /19:7731 /20:12793 /21:15859 /22:28511 /23:29221 /24:165640 /25:63 /26:80 /27:35 /28:13 /29:17 /30:10 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3419 6580 UNINET, MX 22773 2491 3335 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2347 13585 AMAZON-02, US 11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 36352 1025 2562 AS-COLOCROSSING, US 19901 1014 1318 BRSPD-PUBLIC, US 10620 993 1711 Telmex Colombia S.A., CO 209 962 1656 CENTURYLINK-US-LEGACY-QWEST, US 11776 883 1902 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:21 2:452 3:821 4:5 5:809 6:149 7:5 8:654 11:171 12:975 13:394 14:113 15:306 16:247 17:4 18:886 20:188 21:4 22:188 23:2648 24:689 27:26 29:19 31:528 32:18 33:1 34:10 35:175 36:2071 37:770 38:2566 39:552 40:78 41:1059 42:21 43:228 44:30 45:4382 46:1023 47:98 49:21 50:364 51:387 52:1387 54:315 55:1103 56:11 57:23 58:16 59:38 60:31 61:79 62:569 63:788 64:1920 65:1152 66:1601 67:1099 68:371 69:1258 70:447 71:192 72:712 74:959 75:320 76:259 77:530 78:370 79:254 80:305 81:371 82:727 83:222 84:364 85:485 86:246 87:224 88:302 89:723 90:106 91:964 92:668 93:500 94:966 95:667 96:291 97:53 98:503 99:188 100:42 101:20 102:380 103:1301 104:1679 105:204 106:41 107:1549 108:544 109:442 110:46 111:1932 112:583 113:36 114:52 115:27 116:57 117:1081 118:69 119:86 120:1399 121:49 122:77 123:130 124:68 125:25 128:519 129:391 130:666 131:1043 132:563 133:213 134:471 135:127 136:628 137:524 138:1006 139:441 140:724 141:366 142:1041 143:781 144:425 145:125 146:692 147:521 148:994 149:766 150:181 151:794 152:630 153:144 154:1367 155:862 156:1160 157:401 158:552 159:745 160:826 161:661 162:1071 163:440 164:726 165:577 166:818 167:696 168:1549 169:159 170:1782 171:110 172:1350 173:814 174:362 175:88 176:819 177:1139 178:612 179:872 180:49 181:2261 182:57 183:1033 184:461 185:3545 186:2721 187:1582 188:840 189:1857 190:5841 191:511 192:5266 193:1906 194:1265 195:941 196:745 197:1282 198:2746 199:5005 200:4651 201:3720 202:973 203:743 204:2221 205:1850 206:1585 207:1627 208:1583 209:2030 210:335 211:447 212:1015 213:819 214:924 215:35 216:2606 217:449 218:548 219:19 220:34 221:415 222:24 223:985 End of report