IPv4 R&E Routing Table Report 20:15 GMT Tue 08 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: 277067 Prefixes after maximum aggregation (per Origin AS): 120526 Deaggregation factor: 2.30 Unique aggregates announced (without unneeded subnets): 143700 Number of IPv4 prefixes with a valid ROA: 129981 Number of IPv4 prefixes with an invalid ROA: 43 Number of IPv4 prefixes with no ROA: 147043 Total ASes present in the Internet Routing Table: 20878 Prefixes per ASN: 13.27 Origin-only ASes present in the Internet Routing Table: 17978 Origin ASes announcing only one prefix: 8027 Transit ASes present in the Internet Routing Table: 2900 Transit-only ASes present in the Internet Routing Table: 721 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: 339 Number of instances of unregistered ASNs: 371 Number of 32-bit ASNs allocated by the RIRs: 46788 Number of 32-bit ASNs visible in the Routing Table: 8333 Prefixes from 32-bit ASNs in the Routing Table: 32937 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: 76 Number of addresses announced to Internet: 1640930053 Equivalent to 97 /8s, 206 /16s and 155 /24s Percentage of available address space announced: 44.3 Percentage of allocated address space announced: 44.3 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: 89226 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 34120 Total APNIC prefixes after maximum aggregation: 7519 APNIC Deaggregation factor: 4.54 Prefixes being announced from the APNIC address blocks: 32859 Unique aggregates announced from the APNIC address blocks: 7838 APNIC Region origin ASes present in the Internet Routing Table: 1244 APNIC Prefixes per ASN: 26.41 APNIC Region origin ASes announcing only one prefix: 495 APNIC Region transit ASes present in the Internet Routing Table: 201 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: 594 Number of APNIC addresses announced to Internet: 173146220 Equivalent to 10 /8s, 82 /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: 126445 Total ARIN prefixes after maximum aggregation: 66385 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 124733 Unique aggregates announced from the ARIN address blocks: 67807 ARIN Region origin ASes present in the Internet Routing Table: 9314 ARIN Prefixes per ASN: 13.39 ARIN Region origin ASes announcing only one prefix: 3858 ARIN Region transit ASes present in the Internet Routing Table: 880 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: 2188 Number of ARIN addresses announced to Internet: 1028408585 Equivalent to 61 /8s, 76 /16s and 69 /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: 50570 Total RIPE prefixes after maximum aggregation: 27468 RIPE Deaggregation factor: 1.84 Prefixes being announced from the RIPE address blocks: 52190 Unique aggregates announced from the RIPE address blocks: 38278 RIPE Region origin ASes present in the Internet Routing Table: 4663 RIPE Prefixes per ASN: 11.19 RIPE Region origin ASes announcing only one prefix: 1964 RIPE Region transit ASes present in the Internet Routing Table: 697 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: 1907 Number of RIPE addresses announced to Internet: 287425104 Equivalent to 17 /8s, 33 /16s and 194 /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: 56917 Total LACNIC prefixes after maximum aggregation: 16608 LACNIC Deaggregation factor: 3.43 Prefixes being announced from the LACNIC address blocks: 55202 Unique aggregates announced from the LACNIC address blocks: 24981 LACNIC Region origin ASes present in the Internet Routing Table: 4543 LACNIC Prefixes per ASN: 12.15 LACNIC Region origin ASes announcing only one prefix: 1620 LACNIC Region transit ASes present in the Internet Routing Table: 905 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: 3513 Number of LACNIC addresses announced to Internet: 109437248 Equivalent to 6 /8s, 133 /16s and 225 /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: 8676 Total AfriNIC prefixes after maximum aggregation: 2297 AfriNIC Deaggregation factor: 3.78 Prefixes being announced from the AfriNIC address blocks: 12007 Unique aggregates announced from the AfriNIC address blocks: 4721 AfriNIC Region origin ASes present in the Internet Routing Table: 269 AfriNIC Prefixes per ASN: 44.64 AfriNIC Region origin ASes announcing only one prefix: 90 AfriNIC Region transit ASes present in the Internet Routing Table: 73 Average AfriNIC Region AS path length visible: 6.5 Max AfriNIC Region AS path length visible: 19 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 131 Number of AfriNIC addresses announced to Internet: 42407424 Equivalent to 2 /8s, 135 /16s and 22 /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 11554 8759 113 CHINAMOBILE-CN China Mobile Communication 56046 2522 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 537 887 138 ALIBABA-CN-NET Alibaba US Technology Co., 24445 523 496 66 CMNET-V4HENAN-AS-AP Henan Mobile Communic 17561 521 33 149 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 13521 40952 5219 AMAZON-02, US 22773 3338 3017 165 ASN-CXA-ALL-CCI-22773-RDC, US 749 3226 54767 2477 DNIC-AS-00749, US 4155 2836 215 1731 USDA-1, US 36352 2563 210 1140 AS-COLOCROSSING, US 367 2461 3164 1167 DNIC-ASBLK-00306-00371, US 6167 1923 4004 517 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 7018 1774 22857 1322 ATT-INTERNET4, US 209 1657 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 1161 90 948 AKAMAI-ASN1, NL 3257 1041 2082 805 GTT-BACKBONE GTT, US 34984 925 116 600 TELLCOM-AS, TR 3215 887 4818 291 France Telecom - Orange, FR 8452 828 1841 16 TE-AS TE-AS, EG 25019 815 1301 129 SAUDINETSTC-AS, SA 212238 661 47 585 CDNEXT, GB 8376 573 53 20 Jordan Data Communications, JO 51167 564 113 248 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 7474 2015 910 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 1196 371 22 Telefonica del Peru S.A.A., PE 26615 1021 2487 55 TIM SA, BR 18881 890 1127 31 TELEFONICA BRASIL S.A, BR 11172 722 124 69 Alestra, S. de R.L. de C.V., MX 28006 648 77 298 CORPORACION NACIONAL DE TELECOMUNICACIONE 27651 646 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 29571 1064 100 72 ORANGE-COTE-IVOIRE, CI 24835 597 372 58 RAYA-AS, EG 36914 572 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36935 501 521 40 Vodafone-, EG 24863 495 388 19 LINKdotNET-AS, EG 36903 456 204 330 MT-MPLS, MA 2018 376 318 69 TENET-1, ZA 37069 367 817 14 MOBINIL, EG 37693 343 599 42 TUNISIANA, TN 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 13521 40952 5219 AMAZON-02, US 9808 11554 8759 113 CHINAMOBILE-CN China Mobile Communication 8151 7474 2015 910 UNINET, MX 22773 3338 3017 165 ASN-CXA-ALL-CCI-22773-RDC, US 749 3226 54767 2477 DNIC-AS-00749, US 4155 2836 215 1731 USDA-1, US 36352 2563 210 1140 AS-COLOCROSSING, US 56046 2522 811 188 CMNET-JIANGSU-AP China Mobile communicati 367 2461 3164 1167 DNIC-ASBLK-00306-00371, 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 11554 11441 CHINAMOBILE-CN China Mobile Communications Grou 8151 7474 6564 UNINET, MX 22773 3338 3173 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2522 2334 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 56041 1610 1532 CMNET-ZHEJIANG-AP China Mobile communications c 56047 1482 1432 CMNET-HUNAN-AP China Mobile communications corp 36352 2563 1423 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 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 /13:214 /14:585 /15:1107 /16:7714 /17:3505 /18:4227 /19:7780 /20:12668 /21:15895 /22:27657 /23:29327 /24:165898 /25:64 /26:81 /27:35 /28:13 /29:16 /30:10 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 4006 7474 UNINET, MX 22773 2492 3338 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2316 13521 AMAZON-02, US 11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 36352 1025 2563 AS-COLOCROSSING, US 19901 1020 1339 BRSPD-PUBLIC, US 10620 993 1711 Telmex Colombia S.A., CO 209 962 1657 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) ---------------------------------------------- 1:31 2:430 3:815 4:5 5:803 6:149 7:5 8:656 11:171 12:973 13:392 14:113 15:307 16:247 17:4 18:886 20:188 21:4 22:188 23:2624 24:684 27:26 29:19 31:527 32:18 33:1 34:10 35:180 36:2282 37:766 38:2582 39:552 40:78 41:863 42:21 43:233 44:29 45:4308 46:1010 47:102 49:21 50:361 51:384 52:1378 54:314 55:1104 56:11 57:24 58:16 59:38 60:37 61:78 62:541 63:788 64:1928 65:1148 66:1603 67:1101 68:376 69:1255 70:460 71:191 72:711 74:970 75:320 76:260 77:492 78:369 79:239 80:304 81:379 82:713 83:219 84:343 85:474 86:245 87:228 88:302 89:717 90:105 91:958 92:690 93:485 94:968 95:676 96:289 97:53 98:505 99:187 100:42 101:22 102:386 103:1302 104:1675 105:207 106:42 107:1548 108:534 109:446 110:40 111:1930 112:610 113:35 114:55 115:26 116:60 117:1081 118:70 119:82 120:1412 121:49 122:69 123:129 124:69 125:25 126:1 128:515 129:395 130:668 131:1042 132:561 133:212 134:476 135:127 136:632 137:531 138:1017 139:442 140:718 141:367 142:1022 143:799 144:427 145:123 146:686 147:517 148:990 149:760 150:182 151:812 152:624 153:145 154:1328 155:868 156:1155 157:401 158:561 159:747 160:822 161:660 162:1081 163:441 164:726 165:581 166:810 167:693 168:1573 169:162 170:1766 171:110 172:1371 173:810 174:364 175:85 176:813 177:1090 178:623 179:894 180:41 181:2269 182:28 183:1038 184:461 185:3454 186:2805 187:1700 188:843 189:1998 190:6072 191:525 192:5261 193:1873 194:1255 195:958 196:716 197:1058 198:2741 199:5005 200:4703 201:3808 202:966 203:744 204:2226 205:1841 206:1613 207:1630 208:1640 209:2022 210:350 211:457 212:1019 213:779 214:938 215:35 216:2587 217:450 218:540 219:19 220:27 221:440 222:24 223:1027 End of report