IPv4 R&E Routing Table Report 20:15 GMT Tue 24 Jun, 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: 263213 Prefixes after maximum aggregation (per Origin AS): 115624 Deaggregation factor: 2.28 Unique aggregates announced (without unneeded subnets): 135950 Number of IPv4 prefixes with a valid ROA: 119152 Number of IPv4 prefixes with an invalid ROA: 42 Number of IPv4 prefixes with no ROA: 144019 Total ASes present in the Internet Routing Table: 19645 Prefixes per ASN: 13.40 Origin-only ASes present in the Internet Routing Table: 16969 Origin ASes announcing only one prefix: 7689 Transit ASes present in the Internet Routing Table: 2676 Transit-only ASes present in the Internet Routing Table: 694 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: 41 Max AS path prepend of ASN (265171) 25 Prefixes from unregistered ASNs in the Routing Table: 373 Number of instances of unregistered ASNs: 405 Number of 32-bit ASNs allocated by the RIRs: 46698 Number of 32-bit ASNs visible in the Routing Table: 7404 Prefixes from 32-bit ASNs in the Routing Table: 28705 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: 108 Number of addresses announced to Internet: 1557655301 Equivalent to 92 /8s, 215 /16s and 239 /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: 83441 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 32809 Total APNIC prefixes after maximum aggregation: 7289 APNIC Deaggregation factor: 4.50 Prefixes being announced from the APNIC address blocks: 31852 Unique aggregates announced from the APNIC address blocks: 7622 APNIC Region origin ASes present in the Internet Routing Table: 1196 APNIC Prefixes per ASN: 26.63 APNIC Region origin ASes announcing only one prefix: 471 APNIC Region transit ASes present in the Internet Routing Table: 192 Average APNIC Region AS path length visible: 7.3 Max APNIC Region AS path length visible: 27 Number of APNIC region 32-bit ASNs visible in the Routing Table: 559 Number of APNIC addresses announced to Internet: 167614316 Equivalent to 9 /8s, 253 /16s and 151 /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: 125295 Total ARIN prefixes after maximum aggregation: 65967 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 123039 Unique aggregates announced from the ARIN address blocks: 66569 ARIN Region origin ASes present in the Internet Routing Table: 9307 ARIN Prefixes per ASN: 13.22 ARIN Region origin ASes announcing only one prefix: 3866 ARIN Region transit ASes present in the Internet Routing Table: 875 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: 2195 Number of ARIN addresses announced to Internet: 960756233 Equivalent to 57 /8s, 67 /16s and 250 /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: 49555 Total RIPE prefixes after maximum aggregation: 26742 RIPE Deaggregation factor: 1.85 Prefixes being announced from the RIPE address blocks: 51378 Unique aggregates announced from the RIPE address blocks: 37477 RIPE Region origin ASes present in the Internet Routing Table: 4632 RIPE Prefixes per ASN: 11.09 RIPE Region origin ASes announcing only one prefix: 1945 RIPE Region transit ASes present in the Internet Routing Table: 694 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 41 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1914 Number of RIPE addresses announced to Internet: 285907280 Equivalent to 17 /8s, 10 /16s and 153 /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: 44481 Total LACNIC prefixes after maximum aggregation: 13093 LACNIC Deaggregation factor: 3.40 Prefixes being announced from the LACNIC address blocks: 43620 Unique aggregates announced from the LACNIC address blocks: 19656 LACNIC Region origin ASes present in the Internet Routing Table: 3390 LACNIC Prefixes per ASN: 12.87 LACNIC Region origin ASes announcing only one prefix: 1295 LACNIC Region transit ASes present in the Internet Routing Table: 694 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: 2577 Number of LACNIC addresses announced to Internet: 97006656 Equivalent to 5 /8s, 200 /16s and 52 /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: 10700 Total AfriNIC prefixes after maximum aggregation: 2269 AfriNIC Deaggregation factor: 4.72 Prefixes being announced from the AfriNIC address blocks: 13216 Unique aggregates announced from the AfriNIC address blocks: 4519 AfriNIC Region origin ASes present in the Internet Routing Table: 295 AfriNIC Prefixes per ASN: 44.80 AfriNIC Region origin ASes announcing only one prefix: 112 AfriNIC Region transit ASes present in the Internet Routing Table: 76 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: 159 Number of AfriNIC addresses announced to Internet: 46324480 Equivalent to 2 /8s, 194 /16s and 219 /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 11183 8761 110 CHINAMOBILE-CN China Mobile Communication 56046 2133 811 188 CMNET-JIANGSU-AP China Mobile communicati 56041 1670 718 90 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1482 192 50 CMNET-HUNAN-AP China Mobile communication 24547 869 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 776 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 613 2170 465 SINET-AS Research Organization of Informa 45102 530 856 135 ALIBABA-CN-NET Alibaba US Technology Co., 24445 523 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 132525 456 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 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 13540 40949 5199 AMAZON-02, US 22773 3345 3015 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3227 54767 2478 DNIC-AS-00749, US 4155 2819 214 1716 USDA-1, US 36352 2572 210 1134 AS-COLOCROSSING, US 367 2431 3163 1160 DNIC-ASBLK-00306-00371, US 6167 1914 3955 513 CELLCO-PART, US 7018 1906 22866 1424 ATT-INTERNET4, US 11776 1901 259 214 ATLANTICBB-JOHNSTOWN, 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 1195 92 970 AKAMAI-ASN1, NL 3257 1022 2081 791 GTT-BACKBONE GTT, US 3215 887 4818 291 France Telecom - Orange, FR 25019 818 1301 129 SAUDINETSTC-AS, SA 8452 788 1841 16 TE-AS TE-AS, EG 34984 679 74 415 TELLCOM-AS, TR 212238 652 47 577 CDNEXT, GB 8376 572 53 24 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 7367 1991 928 UNINET, MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 10620 1673 243 1211 Telmex Colombia S.A., CO 3816 1340 787 207 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1199 371 22 Telefonica del Peru S.A.A., PE 26615 1050 2487 55 TIM SA, BR 18881 885 1127 31 TELEFONICA BRASIL S.A, BR 28006 648 77 298 CORPORACION NACIONAL DE TELECOMUNICACIONE 27651 627 90 33 ENTEL CHILE S.A., CL 6503 532 346 132 Axtel, S.A.B. de C.V., MX 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 1451 389 16 LINKdotNET-AS, EG 29571 1159 101 74 ORANGE-COTE-IVOIRE, CI 24835 1063 475 106 RAYA-AS, EG 36935 617 520 50 Vodafone-, EG 36914 571 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36992 551 1192 124 ETISALAT-MISR, EG 37069 451 1046 15 MOBINIL, EG 36903 422 193 305 MT-MPLS, MA 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 13540 40949 5199 AMAZON-02, US 9808 11183 8761 110 CHINAMOBILE-CN China Mobile Communication 8151 7367 1991 928 UNINET, MX 22773 3345 3015 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3227 54767 2478 DNIC-AS-00749, US 4155 2819 214 1716 USDA-1, US 36352 2572 210 1134 AS-COLOCROSSING, US 367 2431 3163 1160 DNIC-ASBLK-00306-00371, US 56046 2133 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 11183 11073 CHINAMOBILE-CN China Mobile Communications Grou 8151 7367 6439 UNINET, MX 22773 3345 3182 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2133 1945 CMNET-JIANGSU-AP China Mobile communications co 11830 1987 1923 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1901 1687 ATLANTICBB-JOHNSTOWN, US 56041 1670 1580 CMNET-ZHEJIANG-AP China Mobile communications c 36352 2572 1438 AS-COLOCROSSING, US 24863 1451 1435 LINKdotNET-AS, EG 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 41.77.208.0/22 Origin: 37475 RESERVED, ZZ 41.77.208.0/22 Transit: 15964 CAMNET-AS, CM 41.204.224.0/24 Origin: 36911 RESERVED, ZZ 41.204.224.0/24 Transit: 328766 RESERVED, ZZ 41.204.226.0/24 Origin: 36911 RESERVED, ZZ 41.204.226.0/24 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 /11:42 /12:149 /13:208 /14:573 /15:1091 /16:7611 /17:3433 /18:4195 /19:7584 /20:12541 /21:15364 /22:27245 /23:27887 /24:155013 /25:63 /26:81 /27:34 /28:13 /29:17 /30:10 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3988 7367 UNINET, MX 22773 2500 3345 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2327 13540 AMAZON-02, US 11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 36352 1033 2572 AS-COLOCROSSING, US 19901 1009 1313 BRSPD-PUBLIC, US 10620 968 1673 Telmex Colombia S.A., CO 209 962 1657 CENTURYLINK-US-LEGACY-QWEST, US 11776 883 1901 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:18 2:455 3:814 4:5 5:806 6:149 7:5 8:654 11:171 12:970 13:386 14:115 15:306 16:247 17:4 18:887 20:188 21:4 22:188 23:2627 24:715 27:21 29:19 31:520 32:9 33:1 34:10 35:180 36:1952 37:870 38:1980 39:550 40:67 41:999 42:21 43:219 44:34 45:3521 46:972 47:96 49:21 50:355 51:387 52:1384 54:317 55:1101 56:11 57:22 58:16 59:34 60:32 61:84 62:521 63:748 64:1982 65:1092 66:1532 67:1050 68:398 69:1176 70:466 71:193 72:658 74:929 75:319 76:238 77:494 78:369 79:250 80:286 81:365 82:706 83:208 84:339 85:435 86:244 87:200 88:311 89:713 90:104 91:946 92:646 93:489 94:923 95:683 96:288 97:53 98:531 99:174 100:42 101:20 102:343 103:1235 104:1678 105:214 106:26 107:1559 108:548 109:405 110:39 111:1927 112:526 113:36 114:48 115:28 116:56 117:1050 118:66 119:82 120:1371 121:48 122:77 123:125 124:60 125:25 128:480 129:403 130:677 131:957 132:547 133:213 134:459 135:127 136:606 137:519 138:834 139:426 140:715 141:362 142:1031 143:714 144:429 145:122 146:684 147:510 148:937 149:789 150:205 151:706 152:491 153:141 154:948 155:863 156:891 157:378 158:559 159:742 160:883 161:639 162:1040 163:431 164:722 165:535 166:797 167:671 168:1138 169:159 170:1546 171:112 172:1349 173:813 174:361 175:91 176:775 177:821 178:494 179:689 180:40 181:1785 182:25 183:1023 184:454 185:3577 186:2041 187:1527 188:857 189:1852 190:4145 191:439 192:5189 193:1891 194:1229 195:937 196:717 197:1191 198:2740 199:4963 200:3668 201:3426 202:946 203:727 204:2158 205:1753 206:1538 207:1555 208:1483 209:1975 210:328 211:440 212:1009 213:778 214:918 215:36 216:2559 217:436 218:538 219:19 220:38 221:397 222:24 223:899 End of report