IPv4 R&E Routing Table Report 20:15 GMT Thu 15 May, 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: 263386 Prefixes after maximum aggregation (per Origin AS): 115260 Deaggregation factor: 2.29 Unique aggregates announced (without unneeded subnets): 134668 Number of IPv4 prefixes with a valid ROA: 118424 Number of IPv4 prefixes with an invalid ROA: 28 Number of IPv4 prefixes with no ROA: 144934 Total ASes present in the Internet Routing Table: 19738 Prefixes per ASN: 13.34 Origin-only ASes present in the Internet Routing Table: 17077 Origin ASes announcing only one prefix: 7745 Transit ASes present in the Internet Routing Table: 2661 Transit-only ASes present in the Internet Routing Table: 716 Paths with bogon ASNs present in the IPv4 Routing Table: 9 Average AS path length visible in the Internet Routing Table: 5.8 Max AS path length visible: 38 Max AS path prepend of ASN ( 37447) 34 Prefixes from unregistered ASNs in the Routing Table: 315 Number of instances of unregistered ASNs: 319 Number of 32-bit ASNs allocated by the RIRs: 46405 Number of 32-bit ASNs visible in the Routing Table: 7415 Prefixes from 32-bit ASNs in the Routing Table: 27777 Number of bogon 32-bit ASNs visible in the Routing Table: 10 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 136 Number of addresses announced to Internet: 1554357469 Equivalent to 92 /8s, 165 /16s and 156 /24s Percentage of available address space announced: 42.0 Percentage of allocated address space announced: 42.0 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: 83234 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 32375 Total APNIC prefixes after maximum aggregation: 7540 APNIC Deaggregation factor: 4.29 Prefixes being announced from the APNIC address blocks: 30798 Unique aggregates announced from the APNIC address blocks: 7616 APNIC Region origin ASes present in the Internet Routing Table: 1205 APNIC Prefixes per ASN: 25.56 APNIC Region origin ASes announcing only one prefix: 479 APNIC Region transit ASes present in the Internet Routing Table: 200 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: 553 Number of APNIC addresses announced to Internet: 167641708 Equivalent to 9 /8s, 254 /16s and 2 /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: 125722 Total ARIN prefixes after maximum aggregation: 65412 ARIN Deaggregation factor: 1.92 Prefixes being announced from the ARIN address blocks: 122834 Unique aggregates announced from the ARIN address blocks: 66046 ARIN Region origin ASes present in the Internet Routing Table: 9340 ARIN Prefixes per ASN: 13.15 ARIN Region origin ASes announcing only one prefix: 3895 ARIN Region transit ASes present in the Internet Routing Table: 865 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: 2179 Number of ARIN addresses announced to Internet: 960912865 Equivalent to 57 /8s, 70 /16s and 93 /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: 48858 Total RIPE prefixes after maximum aggregation: 26438 RIPE Deaggregation factor: 1.85 Prefixes being announced from the RIPE address blocks: 50628 Unique aggregates announced from the RIPE address blocks: 36798 RIPE Region origin ASes present in the Internet Routing Table: 4597 RIPE Prefixes per ASN: 11.01 RIPE Region origin ASes announcing only one prefix: 1921 RIPE Region transit ASes present in the Internet Routing Table: 696 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 27 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1871 Number of RIPE addresses announced to Internet: 281251408 Equivalent to 16 /8s, 195 /16s and 142 /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: 45221 Total LACNIC prefixes after maximum aggregation: 13317 LACNIC Deaggregation factor: 3.40 Prefixes being announced from the LACNIC address blocks: 44269 Unique aggregates announced from the LACNIC address blocks: 19909 LACNIC Region origin ASes present in the Internet Routing Table: 3470 LACNIC Prefixes per ASN: 12.76 LACNIC Region origin ASes announcing only one prefix: 1340 LACNIC Region transit ASes present in the Internet Routing Table: 691 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: 2660 Number of LACNIC addresses announced to Internet: 97773120 Equivalent to 5 /8s, 211 /16s and 230 /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: 10895 Total AfriNIC prefixes after maximum aggregation: 2341 AfriNIC Deaggregation factor: 4.65 Prefixes being announced from the AfriNIC address blocks: 14721 Unique aggregates announced from the AfriNIC address blocks: 4181 AfriNIC Region origin ASes present in the Internet Routing Table: 283 AfriNIC Prefixes per ASN: 52.02 AfriNIC Region origin ASes announcing only one prefix: 110 AfriNIC Region transit ASes present in the Internet Routing Table: 78 Average AfriNIC Region AS path length visible: 6.5 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 152 Number of AfriNIC addresses announced to Internet: 46726400 Equivalent to 2 /8s, 200 /16s and 253 /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 10803 8756 95 CHINAMOBILE-CN China Mobile Communication 56046 1772 811 186 CMNET-JIANGSU-AP China Mobile communicati 56041 1572 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1485 192 53 CMNET-HUNAN-AP China Mobile communication 24547 864 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 17561 856 54 403 LCS-AS-AP LARUS Limited, HK 24444 775 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 602 2170 465 SINET-AS Research Organization of Informa 24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 512 848 137 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 13397 40827 4981 AMAZON-02, US 22773 3345 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3243 54815 2494 DNIC-AS-00749, US 4155 2723 207 1662 USDA-1, US 36352 2526 208 1118 AS-COLOCROSSING, US 367 2485 2907 1183 DNIC-ASBLK-00306-00371, US 7018 2094 22887 1543 ATT-INTERNET4, US 11776 1895 258 216 ATLANTICBB-JOHNSTOWN, US 6167 1858 3753 487 CELLCO-PART, US 209 1663 4890 273 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 1178 92 969 AKAMAI-ASN1, NL 3257 932 2077 749 GTT-BACKBONE GTT, US 3215 895 4818 289 France Telecom - Orange, FR 25019 815 1301 129 SAUDINETSTC-AS, SA 8452 709 1842 17 TE-AS TE-AS, EG 34984 688 76 411 TELLCOM-AS, TR 212238 626 44 552 CDNEXT, GB 8376 570 53 21 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 7857 2132 957 UNINET, MX 11830 1996 369 64 Instituto Costarricense de Electricidad y 10620 1902 280 1293 Telmex Colombia S.A., CO 3816 1338 785 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1197 371 22 Telefonica del Peru S.A.A., PE 26615 1027 2503 52 TIM SA, BR 18881 882 1127 31 TELEFONICA BRASIL S.A, BR 27651 648 94 35 ENTEL CHILE S.A., CL 28006 644 77 297 CORPORACION NACIONAL DE TELECOMUNICACIONE 26599 552 2884 69 TELEFONICA BRASIL S.A, BR 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 1493 389 16 LINKdotNET-AS, EG 24835 1036 523 36 RAYA-AS, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 29571 980 100 75 ORANGE-COTE-IVOIRE, CI 36992 603 1228 124 ETISALAT-MISR, EG 36935 585 125 166 Vodafone-, EG 36914 552 82 3 KENET-AS, KE 37069 494 1046 15 MOBINIL, EG 36903 446 199 325 MT-MPLS, MA 2018 373 318 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 13397 40827 4981 AMAZON-02, US 9808 10803 8756 95 CHINAMOBILE-CN China Mobile Communication 8151 7857 2132 957 UNINET, MX 22773 3345 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3243 54815 2494 DNIC-AS-00749, US 4155 2723 207 1662 USDA-1, US 36352 2526 208 1118 AS-COLOCROSSING, US 367 2485 2907 1183 DNIC-ASBLK-00306-00371, US 7018 2094 22887 1543 ATT-INTERNET4, US 11830 1996 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 10803 10708 CHINAMOBILE-CN China Mobile Communications Grou 8151 7857 6900 UNINET, MX 22773 3345 3181 ASN-CXA-ALL-CCI-22773-RDC, US 11830 1996 1932 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1895 1679 ATLANTICBB-JOHNSTOWN, US 56046 1772 1586 CMNET-JIANGSU-AP China Mobile communications co 56041 1572 1494 CMNET-ZHEJIANG-AP China Mobile communications c 24863 1493 1477 LINKdotNET-AS, EG 56047 1485 1432 CMNET-HUNAN-AP China Mobile communications corp 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 23.152.48.0/24 Origin: 46167 RESERVED, ZZ 23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US 41.78.60.0/22 Origin: 6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A 41.78.60.0/22 Transit: 2914 NTT-DATA-2914, US 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 /8:13 /9:10 /10:29 /11:42 /12:151 /13:208 /14:573 /15:1099 /16:7633 /17:3452 /18:4216 /19:7703 /20:12365 /21:15368 /22:27363 /23:27821 /24:155118 /25:62 /26:80 /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 4207 7857 UNINET, MX 22773 2499 3345 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2328 13397 AMAZON-02, US 11830 1697 1996 Instituto Costarricense de Electricidad y Telecom., CR 10620 1081 1902 Telmex Colombia S.A., CO 39891 1081 1936 ALJAWWALSTC-AS, SA 36352 1009 2526 AS-COLOCROSSING, US 19901 973 1259 BRSPD-PUBLIC, US 209 964 1663 CENTURYLINK-US-LEGACY-QWEST, US 11776 883 1895 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:19 2:471 3:734 4:6 5:788 6:156 7:5 8:678 11:171 12:996 13:362 14:113 15:301 16:246 17:6 18:886 20:177 21:4 22:188 23:2598 24:640 27:21 29:19 31:477 32:9 33:1 34:10 35:133 36:1713 37:894 38:1980 39:554 40:62 41:935 42:21 43:195 44:35 45:3601 46:962 47:92 49:17 50:363 51:386 52:1387 54:311 55:1094 56:11 57:18 58:17 59:15 60:16 61:75 62:544 63:765 64:2001 65:1087 66:1586 67:958 68:394 69:1131 70:410 71:202 72:742 74:961 75:427 76:248 77:468 78:365 79:286 80:299 81:388 82:738 83:234 84:341 85:450 86:234 87:228 88:292 89:855 90:104 91:931 92:611 93:475 94:917 95:623 96:289 97:59 98:454 99:179 100:35 101:25 102:391 103:1204 104:1624 105:217 106:16 107:1523 108:546 109:384 110:35 111:1957 112:460 113:39 114:40 115:18 116:62 117:1047 118:39 119:121 120:1219 121:45 122:58 123:78 124:57 125:25 128:490 129:392 130:691 131:896 132:563 133:212 134:492 135:113 136:648 137:501 138:866 139:429 140:700 141:463 142:1023 143:687 144:435 145:136 146:690 147:494 148:868 149:775 150:352 151:641 152:494 153:129 154:1689 155:845 156:1429 157:370 158:549 159:689 160:822 161:668 162:970 163:359 164:719 165:775 166:790 167:629 168:1108 169:149 170:1620 171:125 172:1374 173:837 174:252 175:61 176:679 177:824 178:487 179:683 180:49 181:1824 182:28 183:930 184:449 185:3424 186:2033 187:1414 188:797 189:1811 190:4265 191:446 192:5165 193:1849 194:1225 195:937 196:706 197:1570 198:2733 199:4900 200:3586 201:3345 202:990 203:723 204:2162 205:1880 206:1538 207:1504 208:1441 209:1936 210:290 211:437 212:990 213:840 214:986 215:42 216:2527 217:425 218:520 219:19 220:26 221:340 222:31 223:793 End of report