IPv4 R&E Routing Table Report 20:15 GMT Sun 04 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: 261682 Prefixes after maximum aggregation (per Origin AS): 114622 Deaggregation factor: 2.28 Unique aggregates announced (without unneeded subnets): 135125 Number of IPv4 prefixes with a valid ROA: 117473 Number of IPv4 prefixes with an invalid ROA: 34 Number of IPv4 prefixes with no ROA: 144175 Total ASes present in the Internet Routing Table: 19670 Prefixes per ASN: 13.30 Origin-only ASes present in the Internet Routing Table: 17007 Origin ASes announcing only one prefix: 7723 Transit ASes present in the Internet Routing Table: 2663 Transit-only ASes present in the Internet Routing Table: 696 Paths with bogon ASNs present in the IPv4 Routing Table: 6 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: 306 Number of instances of unregistered ASNs: 307 Number of 32-bit ASNs allocated by the RIRs: 46334 Number of 32-bit ASNs visible in the Routing Table: 7401 Prefixes from 32-bit ASNs in the Routing Table: 27833 Number of bogon 32-bit ASNs visible in the Routing Table: 4 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 140 Number of addresses announced to Internet: 1555945949 Equivalent to 92 /8s, 189 /16s and 217 /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: 82627 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 32100 Total APNIC prefixes after maximum aggregation: 7530 APNIC Deaggregation factor: 4.26 Prefixes being announced from the APNIC address blocks: 30471 Unique aggregates announced from the APNIC address blocks: 7904 APNIC Region origin ASes present in the Internet Routing Table: 1201 APNIC Prefixes per ASN: 25.37 APNIC Region origin ASes announcing only one prefix: 470 APNIC Region transit ASes present in the Internet Routing Table: 204 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: 547 Number of APNIC addresses announced to Internet: 167488108 Equivalent to 9 /8s, 251 /16s and 170 /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: 125523 Total ARIN prefixes after maximum aggregation: 64782 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 122367 Unique aggregates announced from the ARIN address blocks: 65662 ARIN Region origin ASes present in the Internet Routing Table: 9316 ARIN Prefixes per ASN: 13.14 ARIN Region origin ASes announcing only one prefix: 3881 ARIN Region transit ASes present in the Internet Routing Table: 858 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: 2169 Number of ARIN addresses announced to Internet: 968441825 Equivalent to 57 /8s, 185 /16s and 63 /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: 48738 Total RIPE prefixes after maximum aggregation: 26282 RIPE Deaggregation factor: 1.85 Prefixes being announced from the RIPE address blocks: 50501 Unique aggregates announced from the RIPE address blocks: 36695 RIPE Region origin ASes present in the Internet Routing Table: 4587 RIPE Prefixes per ASN: 11.01 RIPE Region origin ASes announcing only one prefix: 1935 RIPE Region transit ASes present in the Internet Routing Table: 693 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: 1873 Number of RIPE addresses announced to Internet: 281678160 Equivalent to 16 /8s, 202 /16s and 17 /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: 44775 Total LACNIC prefixes after maximum aggregation: 13513 LACNIC Deaggregation factor: 3.31 Prefixes being announced from the LACNIC address blocks: 43908 Unique aggregates announced from the LACNIC address blocks: 20212 LACNIC Region origin ASes present in the Internet Routing Table: 3486 LACNIC Prefixes per ASN: 12.60 LACNIC Region origin ASes announcing only one prefix: 1333 LACNIC Region transit ASes present in the Internet Routing Table: 705 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: 2670 Number of LACNIC addresses announced to Internet: 96692032 Equivalent to 5 /8s, 195 /16s and 103 /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: 10240 Total AfriNIC prefixes after maximum aggregation: 2311 AfriNIC Deaggregation factor: 4.43 Prefixes being announced from the AfriNIC address blocks: 14295 Unique aggregates announced from the AfriNIC address blocks: 4530 AfriNIC Region origin ASes present in the Internet Routing Table: 264 AfriNIC Prefixes per ASN: 54.15 AfriNIC Region origin ASes announcing only one prefix: 104 AfriNIC Region transit ASes present in the Internet Routing Table: 73 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: 142 Number of AfriNIC addresses announced to Internet: 41586176 Equivalent to 2 /8s, 122 /16s and 142 /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 10268 8754 92 CHINAMOBILE-CN China Mobile Communication 56046 1622 811 186 CMNET-JIANGSU-AP China Mobile communicati 56041 1569 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1486 192 53 CMNET-HUNAN-AP China Mobile communication 17561 979 62 426 LCS-AS-AP LARUS Limited, HK 24547 852 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 771 500 72 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 639 2170 465 SINET-AS Research Organization of Informa 24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 500 796 137 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 13290 40823 4403 AMAZON-02, US 22773 3365 3015 165 ASN-CXA-ALL-CCI-22773-RDC, US 749 3254 54863 2505 DNIC-AS-00749, US 4155 2688 205 1641 USDA-1, US 36352 2514 207 1117 AS-COLOCROSSING, US 367 2423 2902 1171 DNIC-ASBLK-00306-00371, US 7018 2103 22891 1551 ATT-INTERNET4, US 11776 1895 258 216 ATLANTICBB-JOHNSTOWN, US 6167 1856 3733 470 CELLCO-PART, US 209 1665 4890 275 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 1179 92 966 AKAMAI-ASN1, NL 3257 996 2077 748 GTT-BACKBONE GTT, US 3215 889 4810 291 France Telecom - Orange, FR 25019 812 1301 129 SAUDINETSTC-AS, SA 34984 685 76 408 TELLCOM-AS, TR 8452 661 1842 17 TE-AS TE-AS, EG 203214 581 45 360 HULUMTELE, IQ 8376 574 53 22 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 7451 2024 1008 UNINET, MX 11830 1994 369 64 Instituto Costarricense de Electricidad y 10620 1930 286 1301 Telmex Colombia S.A., CO 3816 1332 784 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1191 371 22 Telefonica del Peru S.A.A., PE 26615 1014 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 550 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 1491 389 16 LINKdotNET-AS, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 29571 971 100 75 ORANGE-COTE-IVOIRE, CI 24835 882 552 38 RAYA-AS, EG 36935 699 135 175 Vodafone-, EG 36992 603 1228 124 ETISALAT-MISR, EG 36914 547 82 3 KENET-AS, KE 37069 465 1046 15 MOBINIL, EG 36903 410 192 301 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 13290 40823 4403 AMAZON-02, US 9808 10268 8754 92 CHINAMOBILE-CN China Mobile Communication 8151 7451 2024 1008 UNINET, MX 22773 3365 3015 165 ASN-CXA-ALL-CCI-22773-RDC, US 749 3254 54863 2505 DNIC-AS-00749, US 4155 2688 205 1641 USDA-1, US 36352 2514 207 1117 AS-COLOCROSSING, US 367 2423 2902 1171 DNIC-ASBLK-00306-00371, US 7018 2103 22891 1551 ATT-INTERNET4, US 11830 1994 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 10268 10176 CHINAMOBILE-CN China Mobile Communications Grou 8151 7451 6443 UNINET, MX 22773 3365 3200 ASN-CXA-ALL-CCI-22773-RDC, US 11830 1994 1930 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1895 1679 ATLANTICBB-JOHNSTOWN, US 56041 1569 1491 CMNET-ZHEJIANG-AP China Mobile communications c 24863 1491 1475 LINKdotNET-AS, EG 56046 1622 1436 CMNET-JIANGSU-AP China Mobile communications co 56047 1486 1433 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 23.158.216.0/24 Origin: 204535 RESERVED, ZZ 23.158.216.0/24 Transit: 22427 GNET-AS, US 23.166.120.0/24 Origin: 59993 UILLLC-20230328, US 23.166.120.0/24 Transit: 30456 COSMIC-GLOBAL, 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 /8:13 /9:10 /10:29 /11:41 /12:151 /13:214 /14:578 /15:1097 /16:7623 /17:3437 /18:4208 /19:7676 /20:12379 /21:15286 /22:27606 /23:27420 /24:153689 /25:61 /26:84 /27:36 /28:13 /29:16 /30:10 /31:0 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3955 7451 UNINET, MX 22773 2517 3365 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2335 13290 AMAZON-02, US 11830 1695 1994 Instituto Costarricense de Electricidad y Telecom., CR 10620 1089 1930 Telmex Colombia S.A., CO 39891 1081 1936 ALJAWWALSTC-AS, SA 36352 1012 2514 AS-COLOCROSSING, US 209 964 1665 CENTURYLINK-US-LEGACY-QWEST, US 19901 963 1241 BRSPD-PUBLIC, 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) ---------------------------------------------- 1:66 2:472 3:664 4:5 5:798 6:155 7:5 8:634 11:171 12:996 13:308 14:109 15:301 16:244 17:5 18:885 20:176 21:4 22:188 23:2550 24:644 27:21 29:19 31:466 32:9 33:1 34:10 35:133 36:1322 37:1041 38:1912 39:551 40:62 41:924 42:213 43:189 44:34 45:3638 46:952 47:85 49:19 50:346 51:383 52:1383 54:298 55:1085 56:11 57:15 58:18 59:31 60:16 61:72 62:546 63:765 64:1925 65:1086 66:1538 67:954 68:415 69:1117 70:442 71:202 72:771 74:959 75:426 76:249 77:471 78:329 79:271 80:294 81:351 82:749 83:245 84:344 85:460 86:233 87:241 88:277 89:841 90:103 91:940 92:598 93:463 94:942 95:689 96:289 97:66 98:467 99:164 100:35 101:24 102:376 103:1231 104:1438 105:133 106:16 107:1494 108:551 109:389 110:33 111:1914 112:448 113:39 114:42 115:13 116:62 117:1035 118:72 119:131 120:1174 121:46 122:68 123:73 124:56 125:25 128:469 129:306 130:693 131:890 132:561 133:212 134:488 135:111 136:573 137:494 138:875 139:443 140:706 141:448 142:1025 143:646 144:425 145:135 146:674 147:493 148:866 149:759 150:386 151:627 152:495 153:129 154:1866 155:810 156:1517 157:375 158:535 159:684 160:828 161:698 162:946 163:352 164:709 165:768 166:775 167:633 168:1112 169:143 170:1596 171:123 172:1360 173:832 174:249 175:55 176:762 177:840 178:506 179:667 180:45 181:1734 182:29 183:866 184:473 185:3367 186:2019 187:1366 188:782 189:1727 190:4208 191:421 192:5155 193:1817 194:1215 195:920 196:686 197:1547 198:2729 199:4881 200:3593 201:3305 202:1002 203:736 204:2155 205:1940 206:1543 207:1493 208:1419 209:1932 210:308 211:430 212:930 213:838 214:982 215:42 216:2531 217:416 218:516 219:19 220:26 221:304 222:32 223:761 End of report