IPv4 R&E Routing Table Report 20:15 GMT Sun 17 Aug, 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: 279748 Prefixes after maximum aggregation (per Origin AS): 120231 Deaggregation factor: 2.33 Unique aggregates announced (without unneeded subnets): 143445 Number of IPv4 prefixes with a valid ROA: 131516 Number of IPv4 prefixes with an invalid ROA: 42 Number of IPv4 prefixes with no ROA: 148190 Total ASes present in the Internet Routing Table: 20676 Prefixes per ASN: 13.53 Origin-only ASes present in the Internet Routing Table: 17818 Origin ASes announcing only one prefix: 7943 Transit ASes present in the Internet Routing Table: 2858 Transit-only ASes present in the Internet Routing Table: 711 Paths with bogon ASNs present in the IPv4 Routing Table: 10 Average AS path length visible in the Internet Routing Table: 5.9 Max AS path length visible: 38 Max AS path prepend of ASN ( 37447) 34 Prefixes from unregistered ASNs in the Routing Table: 347 Number of instances of unregistered ASNs: 376 Number of 32-bit ASNs allocated by the RIRs: 47200 Number of 32-bit ASNs visible in the Routing Table: 8183 Prefixes from 32-bit ASNs in the Routing Table: 33301 Number of bogon 32-bit ASNs visible in the Routing Table: 68 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 107 Number of addresses announced to Internet: 1638574853 Equivalent to 97 /8s, 170 /16s and 171 /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: 89154 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 36328 Total APNIC prefixes after maximum aggregation: 7540 APNIC Deaggregation factor: 4.82 Prefixes being announced from the APNIC address blocks: 35201 Unique aggregates announced from the APNIC address blocks: 7995 APNIC Region origin ASes present in the Internet Routing Table: 1202 APNIC Prefixes per ASN: 29.29 APNIC Region origin ASes announcing only one prefix: 477 APNIC Region transit ASes present in the Internet Routing Table: 192 Average APNIC Region AS path length visible: 7.5 Max APNIC Region AS path length visible: 28 Number of APNIC region 32-bit ASNs visible in the Routing Table: 561 Number of APNIC addresses announced to Internet: 173750636 Equivalent to 10 /8s, 91 /16s and 57 /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: 126566 Total ARIN prefixes after maximum aggregation: 66574 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 124726 Unique aggregates announced from the ARIN address blocks: 68543 ARIN Region origin ASes present in the Internet Routing Table: 9276 ARIN Prefixes per ASN: 13.45 ARIN Region origin ASes announcing only one prefix: 3854 ARIN Region transit ASes present in the Internet Routing Table: 873 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: 2173 Number of ARIN addresses announced to Internet: 1023661577 Equivalent to 61 /8s, 3 /16s and 214 /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: 49424 Total RIPE prefixes after maximum aggregation: 26997 RIPE Deaggregation factor: 1.83 Prefixes being announced from the RIPE address blocks: 51608 Unique aggregates announced from the RIPE address blocks: 37968 RIPE Region origin ASes present in the Internet Routing Table: 4702 RIPE Prefixes per ASN: 10.98 RIPE Region origin ASes announcing only one prefix: 1959 RIPE Region transit ASes present in the Internet Routing Table: 718 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 25 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1967 Number of RIPE addresses announced to Internet: 283877968 Equivalent to 16 /8s, 235 /16s and 162 /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: 55971 Total LACNIC prefixes after maximum aggregation: 16451 LACNIC Deaggregation factor: 3.40 Prefixes being announced from the LACNIC address blocks: 54130 Unique aggregates announced from the LACNIC address blocks: 24529 LACNIC Region origin ASes present in the Internet Routing Table: 4332 LACNIC Prefixes per ASN: 12.50 LACNIC Region origin ASes announcing only one prefix: 1532 LACNIC Region transit ASes present in the Internet Routing Table: 854 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: 3307 Number of LACNIC addresses announced to Internet: 108253504 Equivalent to 6 /8s, 115 /16s and 209 /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: 11112 Total AfriNIC prefixes after maximum aggregation: 2407 AfriNIC Deaggregation factor: 4.62 Prefixes being announced from the AfriNIC address blocks: 13976 Unique aggregates announced from the AfriNIC address blocks: 4309 AfriNIC Region origin ASes present in the Internet Routing Table: 318 AfriNIC Prefixes per ASN: 43.95 AfriNIC Region origin ASes announcing only one prefix: 121 AfriNIC Region transit ASes present in the Internet Routing Table: 84 Average AfriNIC Region AS path length visible: 6.6 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 175 Number of AfriNIC addresses announced to Internet: 48916736 Equivalent to 2 /8s, 234 /16s and 105 /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 12685 8761 115 CHINAMOBILE-CN China Mobile Communication 56046 2907 811 190 CMNET-JIANGSU-AP China Mobile communicati 56047 1686 192 50 CMNET-HUNAN-AP China Mobile communication 56041 1667 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 24547 859 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 817 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 610 2169 463 SINET-AS Research Organization of Informa 132525 594 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 24445 523 496 66 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 521 877 134 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 13798 41098 5335 AMAZON-02, US 22773 3339 3013 162 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 4155 2930 229 1735 USDA-1, US 36352 2525 207 1158 AS-COLOCROSSING, US 367 2409 2913 1110 DNIC-ASBLK-00306-00371, US 6167 1948 4050 520 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 209 1665 4888 263 CENTURYLINK-US-LEGACY-QWEST, US 7018 1573 22815 1173 ATT-INTERNET4, 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 1209 95 987 AKAMAI-ASN1, NL 3215 889 4819 293 France Telecom - Orange, FR 25019 804 1301 130 SAUDINETSTC-AS, SA 212238 673 48 597 CDNEXT, GB 34984 644 96 501 TELLCOM-AS, TR 8376 618 53 26 Jordan Data Communications, JO 51167 564 113 248 CONTABO, DE 8452 555 1841 16 TE-AS TE-AS, EG 35819 538 543 58 MOBILY-AS Etihad Etisalat Company Mobily, 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 7312 1970 828 UNINET, MX 11830 1984 369 64 Instituto Costarricense de Electricidad y 10620 1655 239 1203 Telmex Colombia S.A., CO 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1185 371 22 Telefonica del Peru S.A.A., PE 26615 1017 2487 55 TIM SA, BR 18881 891 1127 31 TELEFONICA BRASIL S.A, BR 11664 801 278 29 Techtel LMDS Comunicaciones Interactivas 27651 650 92 45 ENTEL CHILE S.A., CL 28006 644 76 297 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 24835 1259 572 23 RAYA-AS, EG 29571 1156 93 56 ORANGE-COTE-IVOIRE, CI 24863 969 389 23 LINKdotNET-AS, EG 37069 649 1112 11 MOBINIL, EG 36935 598 518 28 Vodafone-, EG 20011 576 154 212 INTERNET-SOLUTIONS, ZA 36914 571 82 3 KENET-AS, KE 36903 563 246 362 MT-MPLS, MA 36992 434 1038 211 ETISALAT-MISR, EG 2018 375 318 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 13798 41098 5335 AMAZON-02, US 9808 12685 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 7312 1970 828 UNINET, MX 22773 3339 3013 162 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 4155 2930 229 1735 USDA-1, US 56046 2907 811 190 CMNET-JIANGSU-AP China Mobile communicati 36352 2525 207 1158 AS-COLOCROSSING, US 367 2409 2913 1110 DNIC-ASBLK-00306-00371, US 11830 1984 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 12685 12570 CHINAMOBILE-CN China Mobile Communications Grou 8151 7312 6484 UNINET, MX 22773 3339 3177 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2907 2717 CMNET-JIANGSU-AP China Mobile communications co 11830 1984 1920 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1902 1687 ATLANTICBB-JOHNSTOWN, US 56047 1686 1636 CMNET-HUNAN-AP China Mobile communications corp 56041 1667 1589 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1948 1428 CELLCO-PART, 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 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 396146 UNALLOCATED 8.21.227.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.42.219.0/24 3356 LEVEL3, US 396146 UNALLOCATED 8.44.213.0/24 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 23.147.224.0/24 Origin: 27392 639-DATACENTERS, US 23.147.224.0/24 Transit: 3356 LEVEL3, US 23.147.225.0/24 Origin: 27392 639-DATACENTERS, US 23.147.225.0/24 Transit: 3356 LEVEL3, US 23.147.226.0/24 Origin: 27392 639-DATACENTERS, US 23.147.226.0/24 Transit: 3356 LEVEL3, 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 /8:14 /9:11 /10:30 /11:52 /12:160 /13:223 /14:592 /15:1116 /16:7783 /17:3481 /18:4191 /19:7586 /20:12974 /21:15905 /22:28478 /23:29441 /24:167466 /25:67 /26:83 /27:52 /28:18 /29:10 /30:9 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3959 7312 UNINET, MX 22773 2495 3339 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2363 13798 AMAZON-02, US 11830 1689 1984 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1036 1385 BRIGHTSPEED, US 36352 1008 2525 AS-COLOCROSSING, US 10620 966 1655 Telmex Colombia S.A., CO 209 961 1665 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) ---------------------------------------------- 1:76 2:468 3:878 4:5 5:854 6:145 7:5 8:647 9:2 11:171 12:878 13:396 14:114 15:320 16:245 17:3 18:894 20:191 21:4 22:188 23:2642 24:661 27:22 29:19 31:509 32:12 34:10 35:174 36:3055 37:749 38:2598 39:633 40:87 41:1096 42:152 43:205 44:30 45:4235 46:1034 47:112 49:25 50:484 51:384 52:1377 54:315 55:1106 56:11 57:26 58:44 59:30 60:31 61:53 62:538 63:785 64:1945 65:1097 66:1591 67:1087 68:363 69:1255 70:450 71:189 72:698 74:965 75:322 76:248 77:423 78:357 79:246 80:306 81:387 82:731 83:227 84:325 85:466 86:258 87:221 88:302 89:705 90:108 91:987 92:696 93:460 94:974 95:667 96:266 97:54 98:503 99:201 100:40 101:29 102:439 103:1242 104:1670 105:210 106:47 107:1552 108:540 109:405 110:51 111:2277 112:853 113:44 114:54 115:21 116:50 117:1206 118:73 119:67 120:1497 121:49 122:62 123:145 124:65 125:26 126:1 128:541 129:401 130:669 131:993 132:562 133:212 134:510 135:121 136:648 137:518 138:1026 139:448 140:695 141:380 142:992 143:827 144:427 145:127 146:651 147:484 148:989 149:769 150:198 151:837 152:638 153:135 154:1263 155:912 156:946 157:418 158:576 159:726 160:911 161:641 162:1035 163:450 164:743 165:673 166:808 167:700 168:1526 169:168 170:1792 171:101 172:1317 173:813 174:365 175:89 176:489 177:944 178:598 179:871 180:43 181:2311 182:22 183:1158 184:455 185:3543 186:2998 187:1585 188:803 189:1880 190:6126 191:561 192:5212 193:1838 194:1202 195:912 196:915 197:1139 198:2749 199:5142 200:4546 201:3673 202:986 203:700 204:2193 205:1815 206:1593 207:1619 208:1586 209:1958 210:347 211:480 212:949 213:773 214:953 215:39 216:2608 217:476 218:589 219:19 220:32 221:472 222:24 223:1246 End of report