IPv4 R&E Routing Table Report 20:15 GMT Fri 14 Mar, 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: 268567 Prefixes after maximum aggregation (per Origin AS): 116691 Deaggregation factor: 2.30 Unique aggregates announced (without unneeded subnets): 139770 Number of IPv4 prefixes with a valid ROA: 121758 Number of IPv4 prefixes with an invalid ROA: 23 Number of IPv4 prefixes with no ROA: 146786 Total ASes present in the Internet Routing Table: 20551 Prefixes per ASN: 13.07 Origin-only ASes present in the Internet Routing Table: 17696 Origin ASes announcing only one prefix: 7887 Transit ASes present in the Internet Routing Table: 2855 Transit-only ASes present in the Internet Routing Table: 722 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: 295 Number of instances of unregistered ASNs: 296 Number of 32-bit ASNs allocated by the RIRs: 46121 Number of 32-bit ASNs visible in the Routing Table: 8038 Prefixes from 32-bit ASNs in the Routing Table: 31242 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: 130 Number of addresses announced to Internet: 1566938749 Equivalent to 93 /8s, 101 /16s and 150 /24s Percentage of available address space announced: 42.3 Percentage of allocated address space announced: 42.3 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: 86265 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 32013 Total APNIC prefixes after maximum aggregation: 7605 APNIC Deaggregation factor: 4.21 Prefixes being announced from the APNIC address blocks: 30750 Unique aggregates announced from the APNIC address blocks: 8201 APNIC Region origin ASes present in the Internet Routing Table: 1201 APNIC Prefixes per ASN: 25.60 APNIC Region origin ASes announcing only one prefix: 473 APNIC Region transit ASes present in the Internet Routing Table: 215 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: 544 Number of APNIC addresses announced to Internet: 169483628 Equivalent to 10 /8s, 26 /16s and 29 /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: 125459 Total ARIN prefixes after maximum aggregation: 64413 ARIN Deaggregation factor: 1.95 Prefixes being announced from the ARIN address blocks: 123148 Unique aggregates announced from the ARIN address blocks: 66401 ARIN Region origin ASes present in the Internet Routing Table: 9339 ARIN Prefixes per ASN: 13.19 ARIN Region origin ASes announcing only one prefix: 3891 ARIN Region transit ASes present in the Internet Routing Table: 875 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: 2158 Number of ARIN addresses announced to Internet: 964774401 Equivalent to 57 /8s, 129 /16s and 74 /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: 48896 Total RIPE prefixes after maximum aggregation: 26555 RIPE Deaggregation factor: 1.84 Prefixes being announced from the RIPE address blocks: 50819 Unique aggregates announced from the RIPE address blocks: 36622 RIPE Region origin ASes present in the Internet Routing Table: 4612 RIPE Prefixes per ASN: 11.02 RIPE Region origin ASes announcing only one prefix: 1930 RIPE Region transit ASes present in the Internet Routing Table: 682 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 26 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1850 Number of RIPE addresses announced to Internet: 289169616 Equivalent to 17 /8s, 60 /16s and 96 /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: 51325 Total LACNIC prefixes after maximum aggregation: 15564 LACNIC Deaggregation factor: 3.30 Prefixes being announced from the LACNIC address blocks: 49998 Unique aggregates announced from the LACNIC address blocks: 23935 LACNIC Region origin ASes present in the Internet Routing Table: 4272 LACNIC Prefixes per ASN: 11.70 LACNIC Region origin ASes announcing only one prefix: 1480 LACNIC Region transit ASes present in the Internet Routing Table: 868 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 36 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3342 Number of LACNIC addresses announced to Internet: 100823616 Equivalent to 6 /8s, 2 /16s and 114 /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: 10579 Total AfriNIC prefixes after maximum aggregation: 2338 AfriNIC Deaggregation factor: 4.52 Prefixes being announced from the AfriNIC address blocks: 13722 Unique aggregates announced from the AfriNIC address blocks: 4489 AfriNIC Region origin ASes present in the Internet Routing Table: 275 AfriNIC Prefixes per ASN: 49.90 AfriNIC Region origin ASes announcing only one prefix: 113 AfriNIC Region transit ASes present in the Internet Routing Table: 75 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: 144 Number of AfriNIC addresses announced to Internet: 42631936 Equivalent to 2 /8s, 138 /16s and 131 /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 10138 8753 87 CHINAMOBILE-CN China Mobile Communication 56046 1571 803 179 CMNET-JIANGSU-AP China Mobile communicati 56041 1542 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1502 192 53 CMNET-HUNAN-AP China Mobile communication 24547 850 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 777 501 74 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 640 2170 465 SINET-AS Research Organization of Informa 17561 559 36 225 LCS-AS-AP LARUS Limited, HK 24445 503 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 476 779 140 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 12933 39644 3955 AMAZON-02, US 22773 3373 3017 175 ASN-CXA-ALL-CCI-22773-RDC, US 749 3259 54879 2506 DNIC-AS-00749, US 4155 2478 183 1516 USDA-1, US 367 2454 2913 1188 DNIC-ASBLK-00306-00371, US 36352 2280 192 1037 AS-COLOCROSSING, US 7018 2219 22910 1582 ATT-INTERNET4, US 11776 1877 257 217 ATLANTICBB-JOHNSTOWN, US 6167 1800 3546 465 CELLCO-PART, US 209 1670 4890 278 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 1255 98 1014 AKAMAI-ASN1, NL 3215 926 4894 282 France Telecom - Orange, FR 34984 886 86 483 TELLCOM-AS, TR 3257 780 2067 684 GTT-BACKBONE GTT, US 25019 700 1290 134 SAUDINETSTC-AS, SA 203214 618 48 351 HULUMTELE, IQ 8452 602 1842 17 TE-AS TE-AS, EG 8376 574 54 23 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 7163 1993 956 UNINET, MX 11830 1993 369 64 Instituto Costarricense de Electricidad y 10620 1734 257 1227 Telmex Colombia S.A., CO 3816 1329 781 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1196 371 22 Telefonica del Peru S.A.A., PE 26615 1012 2503 53 TIM SA, BR 18881 869 1127 31 TELEFONICA BRASIL S.A, BR 28006 644 77 295 CORPORACION NACIONAL DE TELECOMUNICACIONE 27651 633 90 53 ENTEL CHILE S.A., CL 26599 541 2876 72 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 1472 389 16 LINKdotNET-AS, EG 29571 1211 97 215 ORANGE-COTE-IVOIRE, CI 20011 980 183 284 INTERNET-SOLUTIONS, ZA 24835 843 509 44 RAYA-AS, EG 36935 694 520 41 Vodafone-, EG 36992 639 1229 126 ETISALAT-MISR, EG 37069 591 1031 15 MOBINIL, EG 36914 554 82 3 KENET-AS, KE 36903 417 195 306 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 12933 39644 3955 AMAZON-02, US 9808 10138 8753 87 CHINAMOBILE-CN China Mobile Communication 8151 7163 1993 956 UNINET, MX 22773 3373 3017 175 ASN-CXA-ALL-CCI-22773-RDC, US 749 3259 54879 2506 DNIC-AS-00749, US 4155 2478 183 1516 USDA-1, US 367 2454 2913 1188 DNIC-ASBLK-00306-00371, US 36352 2280 192 1037 AS-COLOCROSSING, US 7018 2219 22910 1582 ATT-INTERNET4, US 11830 1993 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 10138 10051 CHINAMOBILE-CN China Mobile Communications Grou 8151 7163 6207 UNINET, MX 22773 3373 3198 ASN-CXA-ALL-CCI-22773-RDC, US 11830 1993 1929 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1877 1660 ATLANTICBB-JOHNSTOWN, US 56041 1542 1464 CMNET-ZHEJIANG-AP China Mobile communications c 24863 1472 1456 LINKdotNET-AS, EG 56047 1502 1449 CMNET-HUNAN-AP China Mobile communications corp 209 1670 1392 CENTURYLINK-US-LEGACY-QWEST, 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 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 53966 UNALLOCATED 8.39.98.0/24 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 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 PIGGYTARO-DATA, CA 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 /11:43 /12:151 /13:222 /14:577 /15:1104 /16:7639 /17:3380 /18:4226 /19:7758 /20:12645 /21:15593 /22:28366 /23:28181 /24:158412 /25:60 /26:75 /27:36 /28:16 /29:16 /30:10 /31:0 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3748 7163 UNINET, MX 22773 2515 3373 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2342 12933 AMAZON-02, US 11830 1694 1993 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 10620 978 1734 Telmex Colombia S.A., CO 209 966 1670 CENTURYLINK-US-LEGACY-QWEST, US 19901 923 1161 BRSPD-PUBLIC, US 36352 905 2280 AS-COLOCROSSING, US 11776 881 1877 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:62 2:482 3:590 4:5 5:939 6:149 7:5 8:640 11:171 12:1000 13:289 14:141 15:299 16:241 17:5 18:890 20:173 21:4 22:188 23:2534 24:962 27:23 29:19 31:403 32:17 34:10 35:131 36:1229 37:1121 38:2335 39:543 40:54 41:965 42:211 43:205 44:25 45:4097 46:988 47:84 49:55 50:349 51:382 52:1384 54:276 55:1070 56:9 57:19 58:31 59:26 60:16 61:65 62:519 63:780 64:1890 65:1087 66:1628 67:978 68:417 69:1249 70:443 71:216 72:811 74:985 75:427 76:254 77:449 78:387 79:273 80:276 81:318 82:642 83:246 84:369 85:569 86:233 87:273 88:257 89:909 90:101 91:948 92:685 93:379 94:787 95:751 96:268 97:66 98:467 99:161 100:36 101:24 102:319 103:1244 104:1449 105:117 106:63 107:1484 108:537 109:381 110:57 111:1915 112:462 113:37 114:64 115:18 116:53 117:1047 118:163 119:136 120:1169 121:42 122:110 123:145 124:57 125:23 126:1 128:480 129:281 130:708 131:928 132:569 133:213 134:524 135:115 136:569 137:508 138:1036 139:422 140:710 141:416 142:982 143:700 144:416 145:97 146:692 147:503 148:858 149:713 150:373 151:752 152:525 153:126 154:1530 155:774 156:1371 157:378 158:501 159:675 160:923 161:727 162:1005 163:338 164:736 165:782 166:707 167:649 168:1549 169:143 170:1677 171:122 172:1395 173:812 174:262 175:63 176:733 177:1098 178:539 179:793 180:51 181:1902 182:46 183:885 184:512 185:3335 186:2485 187:1412 188:759 189:1739 190:5187 191:490 192:5095 193:1750 194:1202 195:912 196:667 197:1527 198:2680 199:4862 200:4077 201:3408 202:987 203:693 204:2130 205:1996 206:1572 207:1481 208:1362 209:1965 210:311 211:425 212:986 213:820 214:1012 215:36 216:2519 217:434 218:525 219:20 220:24 221:301 222:31 223:739 End of report