IPv4 R&E Routing Table Report 20:15 GMT Wed 07 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: 262257 Prefixes after maximum aggregation (per Origin AS): 115161 Deaggregation factor: 2.28 Unique aggregates announced (without unneeded subnets): 135547 Number of IPv4 prefixes with a valid ROA: 118252 Number of IPv4 prefixes with an invalid ROA: 46 Number of IPv4 prefixes with no ROA: 143959 Total ASes present in the Internet Routing Table: 19695 Prefixes per ASN: 13.32 Origin-only ASes present in the Internet Routing Table: 17037 Origin ASes announcing only one prefix: 7743 Transit ASes present in the Internet Routing Table: 2658 Transit-only ASes present in the Internet Routing Table: 702 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: 309 Number of instances of unregistered ASNs: 310 Number of 32-bit ASNs allocated by the RIRs: 46348 Number of 32-bit ASNs visible in the Routing Table: 7402 Prefixes from 32-bit ASNs in the Routing Table: 27758 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: 136 Number of addresses announced to Internet: 1556148957 Equivalent to 92 /8s, 192 /16s and 242 /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: 82629 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 32430 Total APNIC prefixes after maximum aggregation: 7602 APNIC Deaggregation factor: 4.27 Prefixes being announced from the APNIC address blocks: 30865 Unique aggregates announced from the APNIC address blocks: 8014 APNIC Region origin ASes present in the Internet Routing Table: 1225 APNIC Prefixes per ASN: 25.20 APNIC Region origin ASes announcing only one prefix: 483 APNIC Region transit ASes present in the Internet Routing Table: 202 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: 555 Number of APNIC addresses announced to Internet: 167689580 Equivalent to 9 /8s, 254 /16s and 189 /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: 125784 Total ARIN prefixes after maximum aggregation: 65144 ARIN Deaggregation factor: 1.93 Prefixes being announced from the ARIN address blocks: 122735 Unique aggregates announced from the ARIN address blocks: 65939 ARIN Region origin ASes present in the Internet Routing Table: 9342 ARIN Prefixes per ASN: 13.14 ARIN Region origin ASes announcing only one prefix: 3896 ARIN Region transit ASes present in the Internet Routing Table: 863 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: 2181 Number of ARIN addresses announced to Internet: 968557025 Equivalent to 57 /8s, 187 /16s and 1 /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: 48813 Total RIPE prefixes after maximum aggregation: 26425 RIPE Deaggregation factor: 1.85 Prefixes being announced from the RIPE address blocks: 50550 Unique aggregates announced from the RIPE address blocks: 36924 RIPE Region origin ASes present in the Internet Routing Table: 4577 RIPE Prefixes per ASN: 11.04 RIPE Region origin ASes announcing only one prefix: 1927 RIPE Region transit ASes present in the Internet Routing Table: 691 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: 281476944 Equivalent to 16 /8s, 198 /16s and 255 /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: 44663 Total LACNIC prefixes after maximum aggregation: 13490 LACNIC Deaggregation factor: 3.31 Prefixes being announced from the LACNIC address blocks: 43786 Unique aggregates announced from the LACNIC address blocks: 20097 LACNIC Region origin ASes present in the Internet Routing Table: 3470 LACNIC Prefixes per ASN: 12.62 LACNIC Region origin ASes announcing only one prefix: 1336 LACNIC Region transit ASes present in the Internet Routing Table: 701 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: 2658 Number of LACNIC addresses announced to Internet: 97049408 Equivalent to 5 /8s, 200 /16s and 219 /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: 10258 Total AfriNIC prefixes after maximum aggregation: 2293 AfriNIC Deaggregation factor: 4.47 Prefixes being announced from the AfriNIC address blocks: 14185 Unique aggregates announced from the AfriNIC address blocks: 4454 AfriNIC Region origin ASes present in the Internet Routing Table: 257 AfriNIC Prefixes per ASN: 55.19 AfriNIC Region origin ASes announcing only one prefix: 101 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: 135 Number of AfriNIC addresses announced to Internet: 41324032 Equivalent to 2 /8s, 118 /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 10466 8754 87 CHINAMOBILE-CN China Mobile Communication 56046 1681 811 186 CMNET-JIANGSU-AP China Mobile communicati 56041 1570 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1486 192 53 CMNET-HUNAN-AP China Mobile communication 17561 902 57 414 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 13302 40822 4549 AMAZON-02, US 22773 3350 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3254 54863 2505 DNIC-AS-00749, US 4155 2702 206 1653 USDA-1, US 36352 2520 207 1118 AS-COLOCROSSING, US 367 2442 2904 1185 DNIC-ASBLK-00306-00371, US 7018 2100 22891 1549 ATT-INTERNET4, US 11776 1895 258 216 ATLANTICBB-JOHNSTOWN, US 6167 1849 3728 488 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 1205 94 984 AKAMAI-ASN1, NL 3257 995 2077 748 GTT-BACKBONE GTT, US 3215 894 4818 288 France Telecom - Orange, FR 25019 813 1301 129 SAUDINETSTC-AS, SA 34984 686 76 409 TELLCOM-AS, TR 8452 661 1842 17 TE-AS TE-AS, EG 203214 580 45 362 HULUMTELE, IQ 8376 577 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 7607 2066 1007 UNINET, MX 11830 1994 369 64 Instituto Costarricense de Electricidad y 10620 1930 286 1301 Telmex Colombia S.A., CO 3816 1334 784 207 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1192 371 22 Telefonica del Peru S.A.A., PE 26615 1014 2503 52 TIM SA, BR 18881 883 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 1491 389 16 LINKdotNET-AS, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 29571 975 100 76 ORANGE-COTE-IVOIRE, CI 24835 882 552 38 RAYA-AS, EG 36935 719 141 184 Vodafone-, EG 36992 603 1228 124 ETISALAT-MISR, EG 36914 554 82 3 KENET-AS, KE 37069 469 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 13302 40822 4549 AMAZON-02, US 9808 10466 8754 87 CHINAMOBILE-CN China Mobile Communication 8151 7607 2066 1007 UNINET, MX 22773 3350 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3254 54863 2505 DNIC-AS-00749, US 4155 2702 206 1653 USDA-1, US 36352 2520 207 1118 AS-COLOCROSSING, US 367 2442 2904 1185 DNIC-ASBLK-00306-00371, US 7018 2100 22891 1549 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 10466 10379 CHINAMOBILE-CN China Mobile Communications Grou 8151 7607 6600 UNINET, MX 22773 3350 3186 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 56046 1681 1495 CMNET-JIANGSU-AP China Mobile communications co 56041 1570 1492 CMNET-ZHEJIANG-AP China Mobile communications c 24863 1491 1475 LINKdotNET-AS, EG 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 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 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 /14:579 /15:1099 /16:7625 /17:3436 /18:4203 /19:7717 /20:12380 /21:15321 /22:27569 /23:27522 /24:154123 /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 4019 7607 UNINET, MX 22773 2503 3350 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2313 13302 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 998 2520 AS-COLOCROSSING, US 19901 971 1249 BRSPD-PUBLIC, US 209 964 1665 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) ---------------------------------------------- 1:66 2:495 3:690 4:6 5:794 6:155 7:5 8:683 11:171 12:999 13:308 14:113 15:301 16:245 17:6 18:888 20:177 21:4 22:188 23:2579 24:648 27:21 29:19 31:478 32:9 33:1 34:10 35:134 36:1485 37:1029 38:1896 39:551 40:62 41:930 42:213 43:192 44:34 45:3642 46:958 47:86 49:20 50:348 51:385 52:1384 54:301 55:1095 56:11 57:15 58:18 59:32 60:16 61:72 62:543 63:762 64:1994 65:1078 66:1581 67:955 68:405 69:1126 70:442 71:202 72:788 74:962 75:427 76:249 77:474 78:340 79:280 80:295 81:354 82:749 83:244 84:343 85:447 86:236 87:239 88:277 89:862 90:103 91:945 92:597 93:465 94:915 95:624 96:290 97:66 98:457 99:163 100:35 101:23 102:378 103:1234 104:1442 105:140 106:16 107:1503 108:550 109:388 110:34 111:1935 112:453 113:39 114:43 115:17 116:62 117:1041 118:72 119:131 120:1175 121:46 122:71 123:72 124:56 125:25 128:469 129:306 130:684 131:901 132:565 133:212 134:506 135:113 136:574 137:497 138:878 139:447 140:708 141:463 142:1024 143:671 144:431 145:135 146:678 147:497 148:863 149:769 150:386 151:638 152:494 153:129 154:1801 155:831 156:1423 157:375 158:543 159:687 160:835 161:668 162:938 163:356 164:715 165:769 166:779 167:634 168:1109 169:143 170:1599 171:122 172:1364 173:830 174:256 175:57 176:660 177:802 178:490 179:666 180:49 181:1738 182:30 183:869 184:453 185:3493 186:2003 187:1357 188:777 189:1753 190:4217 191:424 192:5164 193:1838 194:1221 195:927 196:691 197:1548 198:2737 199:4899 200:3543 201:3242 202:998 203:741 204:2159 205:1931 206:1566 207:1503 208:1425 209:1935 210:308 211:430 212:929 213:844 214:982 215:42 216:2530 217:416 218:520 219:19 220:26 221:333 222:32 223:763 End of report