IPv4 R&E Routing Table Report 20:15 GMT Tue 19 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: 280178 Prefixes after maximum aggregation (per Origin AS): 120334 Deaggregation factor: 2.33 Unique aggregates announced (without unneeded subnets): 143169 Number of IPv4 prefixes with a valid ROA: 131555 Number of IPv4 prefixes with an invalid ROA: 40 Number of IPv4 prefixes with no ROA: 148583 Total ASes present in the Internet Routing Table: 20841 Prefixes per ASN: 13.44 Origin-only ASes present in the Internet Routing Table: 17945 Origin ASes announcing only one prefix: 8018 Transit ASes present in the Internet Routing Table: 2896 Transit-only ASes present in the Internet Routing Table: 707 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: 345 Number of instances of unregistered ASNs: 374 Number of 32-bit ASNs allocated by the RIRs: 47206 Number of 32-bit ASNs visible in the Routing Table: 8329 Prefixes from 32-bit ASNs in the Routing Table: 33883 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: 108 Number of addresses announced to Internet: 1639937285 Equivalent to 97 /8s, 191 /16s and 117 /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: 89297 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 35988 Total APNIC prefixes after maximum aggregation: 7392 APNIC Deaggregation factor: 4.87 Prefixes being announced from the APNIC address blocks: 35020 Unique aggregates announced from the APNIC address blocks: 7683 APNIC Region origin ASes present in the Internet Routing Table: 1196 APNIC Prefixes per ASN: 29.28 APNIC Region origin ASes announcing only one prefix: 476 APNIC Region transit ASes present in the Internet Routing Table: 186 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: 560 Number of APNIC addresses announced to Internet: 173782892 Equivalent to 10 /8s, 91 /16s and 183 /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: 126677 Total ARIN prefixes after maximum aggregation: 66662 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 124884 Unique aggregates announced from the ARIN address blocks: 68574 ARIN Region origin ASes present in the Internet Routing Table: 9277 ARIN Prefixes per ASN: 13.46 ARIN Region origin ASes announcing only one prefix: 3861 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: 1025010185 Equivalent to 61 /8s, 24 /16s and 106 /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: 49372 Total RIPE prefixes after maximum aggregation: 26943 RIPE Deaggregation factor: 1.83 Prefixes being announced from the RIPE address blocks: 51557 Unique aggregates announced from the RIPE address blocks: 37887 RIPE Region origin ASes present in the Internet Routing Table: 4710 RIPE Prefixes per ASN: 10.95 RIPE Region origin ASes announcing only one prefix: 1970 RIPE Region transit ASes present in the Internet Routing Table: 712 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 25 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1975 Number of RIPE addresses announced to Internet: 283622480 Equivalent to 16 /8s, 231 /16s and 188 /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: 56684 Total LACNIC prefixes after maximum aggregation: 16647 LACNIC Deaggregation factor: 3.41 Prefixes being announced from the LACNIC address blocks: 54825 Unique aggregates announced from the LACNIC address blocks: 24755 LACNIC Region origin ASes present in the Internet Routing Table: 4494 LACNIC Prefixes per ASN: 12.20 LACNIC Region origin ASes announcing only one prefix: 1587 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: 3440 Number of LACNIC addresses announced to Internet: 108663616 Equivalent to 6 /8s, 122 /16s and 19 /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: 2426 AfriNIC Deaggregation factor: 4.58 Prefixes being announced from the AfriNIC address blocks: 13784 Unique aggregates announced from the AfriNIC address blocks: 4164 AfriNIC Region origin ASes present in the Internet Routing Table: 321 AfriNIC Prefixes per ASN: 42.94 AfriNIC Region origin ASes announcing only one prefix: 124 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: 181 Number of AfriNIC addresses announced to Internet: 48743168 Equivalent to 2 /8s, 231 /16s and 195 /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 12705 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 1671 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 593 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 45102 542 894 139 ALIBABA-CN-NET Alibaba US Technology Co., 24445 523 496 66 CMNET-V4HENAN-AS-AP Henan Mobile Communic 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 13877 41102 5353 AMAZON-02, US 22773 3339 3013 162 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 4155 2938 229 1742 USDA-1, US 36352 2522 207 1160 AS-COLOCROSSING, US 367 2422 2898 1121 DNIC-ASBLK-00306-00371, US 6167 1948 4050 520 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 209 1653 4885 270 CENTURYLINK-US-LEGACY-QWEST, US 7018 1570 22815 1171 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 1207 95 987 AKAMAI-ASN1, NL 3215 889 4819 293 France Telecom - Orange, FR 25019 804 1301 130 SAUDINETSTC-AS, SA 212238 670 48 594 CDNEXT, GB 34984 643 95 500 TELLCOM-AS, TR 8376 603 53 26 Jordan Data Communications, JO 51167 564 113 248 CONTABO, DE 8452 556 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 7225 1962 823 UNINET, MX 11830 1987 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 1183 371 22 Telefonica del Peru S.A.A., PE 26615 1017 2487 55 TIM SA, BR 18881 892 1127 31 TELEFONICA BRASIL S.A, BR 11664 801 278 29 Techtel LMDS Comunicaciones Interactivas 27651 651 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 1301 572 23 RAYA-AS, EG 29571 1108 93 56 ORANGE-COTE-IVOIRE, CI 24863 976 389 23 LINKdotNET-AS, EG 37069 644 1096 13 MOBINIL, EG 36935 599 519 29 Vodafone-, EG 20011 576 154 212 INTERNET-SOLUTIONS, ZA 36914 568 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 13877 41102 5353 AMAZON-02, US 9808 12705 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 7225 1962 823 UNINET, MX 22773 3339 3013 162 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 4155 2938 229 1742 USDA-1, US 56046 2907 811 190 CMNET-JIANGSU-AP China Mobile communicati 36352 2522 207 1160 AS-COLOCROSSING, US 367 2422 2898 1121 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 12705 12590 CHINAMOBILE-CN China Mobile Communications Grou 8151 7225 6402 UNINET, MX 22773 3339 3177 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2907 2717 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 56047 1686 1636 CMNET-HUNAN-AP China Mobile communications corp 56041 1671 1593 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 /16:7803 /17:3485 /18:4185 /19:7578 /20:12964 /21:15890 /22:28517 /23:29583 /24:167731 /25:67 /26:83 /27:52 /28:18 /29:9 /30:9 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3880 7225 UNINET, MX 22773 2495 3339 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2377 13877 AMAZON-02, US 11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1036 1385 BRIGHTSPEED, US 36352 1007 2522 AS-COLOCROSSING, US 10620 966 1655 Telmex Colombia S.A., CO 209 962 1653 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) ---------------------------------------------- 1:29 2:469 3:883 4:5 5:887 6:145 7:5 8:651 9:2 11:171 12:882 13:395 14:113 15:321 16:247 17:3 18:895 20:191 21:4 22:188 23:2651 24:662 27:22 29:19 31:502 32:12 34:10 35:174 36:3072 37:730 38:2592 39:633 40:87 41:1089 42:176 43:205 44:30 45:4259 46:1007 47:114 49:25 50:485 51:384 52:1390 54:326 55:1062 56:11 57:24 58:44 59:30 60:31 61:53 62:540 63:785 64:1952 65:1106 66:1590 67:1084 68:350 69:1258 70:451 71:189 72:698 74:960 75:321 76:250 77:445 78:357 79:243 80:304 81:383 82:723 83:229 84:326 85:463 86:254 87:221 88:303 89:708 90:108 91:983 92:688 93:459 94:967 95:658 96:270 97:54 98:502 99:200 100:40 101:29 102:438 103:1241 104:1679 105:209 106:40 107:1551 108:535 109:401 110:50 111:2277 112:858 113:44 114:53 115:21 116:50 117:1210 118:71 119:67 120:1495 121:49 122:62 123:132 124:65 125:26 126:1 128:541 129:401 130:673 131:1009 132:567 133:212 134:511 135:121 136:680 137:515 138:1048 139:447 140:696 141:380 142:992 143:842 144:431 145:128 146:649 147:485 148:970 149:765 150:198 151:838 152:637 153:135 154:1220 155:906 156:876 157:418 158:577 159:725 160:877 161:666 162:1034 163:449 164:747 165:677 166:813 167:701 168:1543 169:168 170:1828 171:102 172:1323 173:810 174:366 175:86 176:488 177:979 178:602 179:898 180:43 181:2318 182:23 183:1160 184:455 185:3579 186:3094 187:1565 188:809 189:1870 190:6174 191:563 192:5218 193:1852 194:1201 195:965 196:914 197:1132 198:2755 199:5151 200:4567 201:3671 202:981 203:699 204:2203 205:1815 206:1592 207:1624 208:1577 209:1955 210:347 211:482 212:927 213:776 214:953 215:39 216:2595 217:478 218:593 219:19 220:32 221:472 222:24 223:1246 End of report