IPv4 R&E Routing Table Report 20:15 GMT Wed 20 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: 280423 Prefixes after maximum aggregation (per Origin AS): 120453 Deaggregation factor: 2.33 Unique aggregates announced (without unneeded subnets): 143163 Number of IPv4 prefixes with a valid ROA: 131526 Number of IPv4 prefixes with an invalid ROA: 41 Number of IPv4 prefixes with no ROA: 148856 Total ASes present in the Internet Routing Table: 20846 Prefixes per ASN: 13.45 Origin-only ASes present in the Internet Routing Table: 17957 Origin ASes announcing only one prefix: 8015 Transit ASes present in the Internet Routing Table: 2889 Transit-only ASes present in the Internet Routing Table: 710 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: 348 Number of instances of unregistered ASNs: 377 Number of 32-bit ASNs allocated by the RIRs: 47227 Number of 32-bit ASNs visible in the Routing Table: 8328 Prefixes from 32-bit ASNs in the Routing Table: 33921 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: 109 Number of addresses announced to Internet: 1639061509 Equivalent to 97 /8s, 178 /16s and 24 /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: 89561 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 35994 Total APNIC prefixes after maximum aggregation: 7382 APNIC Deaggregation factor: 4.88 Prefixes being announced from the APNIC address blocks: 35042 Unique aggregates announced from the APNIC address blocks: 7699 APNIC Region origin ASes present in the Internet Routing Table: 1203 APNIC Prefixes per ASN: 29.13 APNIC Region origin ASes announcing only one prefix: 478 APNIC Region transit ASes present in the Internet Routing Table: 188 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: 562 Number of APNIC addresses announced to Internet: 173787244 Equivalent to 10 /8s, 91 /16s and 200 /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: 126516 Total ARIN prefixes after maximum aggregation: 66751 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 125082 Unique aggregates announced from the ARIN address blocks: 68700 ARIN Region origin ASes present in the Internet Routing Table: 9293 ARIN Prefixes per ASN: 13.46 ARIN Region origin ASes announcing only one prefix: 3868 ARIN Region transit ASes present in the Internet Routing Table: 874 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: 2180 Number of ARIN addresses announced to Internet: 1023661065 Equivalent to 61 /8s, 3 /16s and 212 /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: 49437 Total RIPE prefixes after maximum aggregation: 26941 RIPE Deaggregation factor: 1.84 Prefixes being announced from the RIPE address blocks: 51591 Unique aggregates announced from the RIPE address blocks: 37887 RIPE Region origin ASes present in the Internet Routing Table: 4704 RIPE Prefixes per ASN: 10.97 RIPE Region origin ASes announcing only one prefix: 1966 RIPE Region transit ASes present in the Internet Routing Table: 710 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: 283680336 Equivalent to 16 /8s, 232 /16s and 158 /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: 56895 Total LACNIC prefixes after maximum aggregation: 16688 LACNIC Deaggregation factor: 3.41 Prefixes being announced from the LACNIC address blocks: 55040 Unique aggregates announced from the LACNIC address blocks: 24692 LACNIC Region origin ASes present in the Internet Routing Table: 4480 LACNIC Prefixes per ASN: 12.29 LACNIC Region origin ASes announcing only one prefix: 1583 LACNIC Region transit ASes present in the Internet Routing Table: 900 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 31 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3431 Number of LACNIC addresses announced to Internet: 109024064 Equivalent to 6 /8s, 127 /16s and 147 /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: 11233 Total AfriNIC prefixes after maximum aggregation: 2428 AfriNIC Deaggregation factor: 4.63 Prefixes being announced from the AfriNIC address blocks: 13559 Unique aggregates announced from the AfriNIC address blocks: 4082 AfriNIC Region origin ASes present in the Internet Routing Table: 319 AfriNIC Prefixes per ASN: 42.50 AfriNIC Region origin ASes announcing only one prefix: 120 AfriNIC Region transit ASes present in the Internet Routing Table: 83 Average AfriNIC Region AS path length visible: 6.7 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 180 Number of AfriNIC addresses announced to Internet: 48795648 Equivalent to 2 /8s, 232 /16s and 144 /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 12704 8761 115 CHINAMOBILE-CN China Mobile Communication 56046 2907 811 190 CMNET-JIANGSU-AP China Mobile communicati 56047 1689 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 592 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 13905 41102 5347 AMAZON-02, US 22773 3335 3013 162 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 4155 2942 229 1742 USDA-1, US 36352 2520 207 1160 AS-COLOCROSSING, US 367 2417 2881 1119 DNIC-ASBLK-00306-00371, US 6167 1948 4050 520 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 209 1652 4885 270 CENTURYLINK-US-LEGACY-QWEST, US 7018 1522 22797 1152 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 1206 95 986 AKAMAI-ASN1, NL 3215 890 4819 294 France Telecom - Orange, FR 25019 804 1301 130 SAUDINETSTC-AS, SA 212238 665 48 593 CDNEXT, GB 34984 643 95 500 TELLCOM-AS, TR 8376 603 53 26 Jordan Data Communications, JO 8452 568 1841 16 TE-AS TE-AS, EG 51167 564 113 248 CONTABO, DE 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 7455 2063 855 UNINET, MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 10620 1657 239 1204 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 1018 2487 55 TIM SA, BR 18881 891 1127 31 TELEFONICA BRASIL S.A, BR 11664 805 278 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 1269 572 23 RAYA-AS, EG 29571 1152 93 56 ORANGE-COTE-IVOIRE, CI 37069 955 1096 13 MOBINIL, EG 24863 770 389 23 LINKdotNET-AS, EG 36935 599 519 29 Vodafone-, EG 20011 576 154 212 INTERNET-SOLUTIONS, ZA 36914 574 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 13905 41102 5347 AMAZON-02, US 9808 12704 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 7455 2063 855 UNINET, MX 22773 3335 3013 162 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 4155 2942 229 1742 USDA-1, US 56046 2907 811 190 CMNET-JIANGSU-AP China Mobile communicati 36352 2520 207 1160 AS-COLOCROSSING, US 367 2417 2881 1119 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 12704 12589 CHINAMOBILE-CN China Mobile Communications Grou 8151 7455 6600 UNINET, MX 22773 3335 3173 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 1689 1639 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 /15:1118 /16:7784 /17:3485 /18:4184 /19:7662 /20:13343 /21:15917 /22:28349 /23:29588 /24:167667 /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 4002 7455 UNINET, MX 22773 2491 3335 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2365 13905 AMAZON-02, US 11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1034 1382 BRIGHTSPEED, US 36352 1006 2520 AS-COLOCROSSING, US 10620 968 1657 Telmex Colombia S.A., CO 209 961 1652 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) ---------------------------------------------- 1:28 2:469 3:913 4:5 5:875 6:145 7:5 8:652 9:3 11:171 12:881 13:405 14:114 15:322 16:247 17:3 18:894 20:191 21:4 22:188 23:2654 24:662 27:22 29:19 31:500 32:12 34:10 35:174 36:3072 37:804 38:2653 39:633 40:87 41:1095 42:176 43:205 44:30 45:4261 46:1006 47:114 49:25 50:484 51:384 52:1389 54:323 55:1098 56:11 57:24 58:44 59:30 60:31 61:53 62:541 63:782 64:1968 65:1108 66:1589 67:1086 68:367 69:1251 70:450 71:185 72:699 74:971 75:321 76:249 77:446 78:357 79:243 80:303 81:383 82:705 83:229 84:325 85:467 86:258 87:222 88:303 89:708 90:108 91:988 92:688 93:464 94:965 95:658 96:269 97:54 98:498 99:196 100:40 101:27 102:437 103:1254 104:1679 105:209 106:40 107:1562 108:534 109:396 110:50 111:2276 112:858 113:44 114:53 115:20 116:50 117:1210 118:67 119:67 120:1495 121:49 122:61 123:130 124:65 125:25 126:1 128:542 129:398 130:668 131:1017 132:567 133:212 134:510 135:121 136:678 137:515 138:1051 139:440 140:693 141:380 142:990 143:846 144:424 145:137 146:645 147:484 148:965 149:765 150:198 151:835 152:634 153:137 154:886 155:897 156:845 157:420 158:576 159:725 160:916 161:656 162:1050 163:451 164:741 165:669 166:812 167:700 168:1532 169:169 170:1834 171:102 172:1323 173:812 174:369 175:86 176:491 177:1003 178:596 179:917 180:42 181:2323 182:27 183:1162 184:453 185:3562 186:3101 187:1653 188:802 189:1915 190:6101 191:547 192:5231 193:1846 194:1199 195:968 196:918 197:1138 198:2748 199:5153 200:4502 201:3656 202:986 203:706 204:2208 205:1812 206:1592 207:1624 208:1590 209:1974 210:347 211:482 212:932 213:775 214:954 215:39 216:2608 217:472 218:593 219:19 220:32 221:472 222:24 223:1246 End of report