IPv4 R&E Routing Table Report 20:15 GMT Sun 18 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: 264278 Prefixes after maximum aggregation (per Origin AS): 115831 Deaggregation factor: 2.28 Unique aggregates announced (without unneeded subnets): 135100 Number of IPv4 prefixes with a valid ROA: 118246 Number of IPv4 prefixes with an invalid ROA: 28 Number of IPv4 prefixes with no ROA: 146004 Total ASes present in the Internet Routing Table: 19787 Prefixes per ASN: 13.36 Origin-only ASes present in the Internet Routing Table: 17116 Origin ASes announcing only one prefix: 7771 Transit ASes present in the Internet Routing Table: 2671 Transit-only ASes present in the Internet Routing Table: 715 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: 320 Number of instances of unregistered ASNs: 324 Number of 32-bit ASNs allocated by the RIRs: 46451 Number of 32-bit ASNs visible in the Routing Table: 7444 Prefixes from 32-bit ASNs in the Routing Table: 27778 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: 116 Number of addresses announced to Internet: 1554465501 Equivalent to 92 /8s, 167 /16s and 66 /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: 83485 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 32406 Total APNIC prefixes after maximum aggregation: 7540 APNIC Deaggregation factor: 4.30 Prefixes being announced from the APNIC address blocks: 30821 Unique aggregates announced from the APNIC address blocks: 7633 APNIC Region origin ASes present in the Internet Routing Table: 1199 APNIC Prefixes per ASN: 25.71 APNIC Region origin ASes announcing only one prefix: 472 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: 545 Number of APNIC addresses announced to Internet: 167653740 Equivalent to 9 /8s, 254 /16s and 49 /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: 125750 Total ARIN prefixes after maximum aggregation: 65478 ARIN Deaggregation factor: 1.92 Prefixes being announced from the ARIN address blocks: 122938 Unique aggregates announced from the ARIN address blocks: 65861 ARIN Region origin ASes present in the Internet Routing Table: 9333 ARIN Prefixes per ASN: 13.17 ARIN Region origin ASes announcing only one prefix: 3891 ARIN Region transit ASes present in the Internet Routing Table: 866 Average ARIN Region AS path length visible: 5.4 Max ARIN Region AS path length visible: 26 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2183 Number of ARIN addresses announced to Internet: 960852449 Equivalent to 57 /8s, 69 /16s and 113 /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: 49920 Total RIPE prefixes after maximum aggregation: 26909 RIPE Deaggregation factor: 1.86 Prefixes being announced from the RIPE address blocks: 51604 Unique aggregates announced from the RIPE address blocks: 37447 RIPE Region origin ASes present in the Internet Routing Table: 4637 RIPE Prefixes per ASN: 11.13 RIPE Region origin ASes announcing only one prefix: 1940 RIPE Region transit ASes present in the Internet Routing Table: 699 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1890 Number of RIPE addresses announced to Internet: 281942352 Equivalent to 16 /8s, 206 /16s and 25 /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: 44782 Total LACNIC prefixes after maximum aggregation: 13361 LACNIC Deaggregation factor: 3.35 Prefixes being announced from the LACNIC address blocks: 43827 Unique aggregates announced from the LACNIC address blocks: 19880 LACNIC Region origin ASes present in the Internet Routing Table: 3489 LACNIC Prefixes per ASN: 12.56 LACNIC Region origin ASes announcing only one prefix: 1356 LACNIC Region transit ASes present in the Internet Routing Table: 698 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 36 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 2673 Number of LACNIC addresses announced to Internet: 97277760 Equivalent to 5 /8s, 204 /16s and 87 /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: 11100 Total AfriNIC prefixes after maximum aggregation: 2327 AfriNIC Deaggregation factor: 4.77 Prefixes being announced from the AfriNIC address blocks: 14972 Unique aggregates announced from the AfriNIC address blocks: 4165 AfriNIC Region origin ASes present in the Internet Routing Table: 287 AfriNIC Prefixes per ASN: 52.17 AfriNIC Region origin ASes announcing only one prefix: 112 AfriNIC Region transit ASes present in the Internet Routing Table: 79 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: 153 Number of AfriNIC addresses announced to Internet: 46688256 Equivalent to 2 /8s, 200 /16s and 104 /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 10804 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 847 54 398 LCS-AS-AP LARUS Limited, HK 24444 775 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 603 2170 464 SINET-AS Research Organization of Informa 24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 515 848 138 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 13420 40823 5042 AMAZON-02, US 22773 3349 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3243 54815 2494 DNIC-AS-00749, US 4155 2726 207 1671 USDA-1, US 36352 2543 209 1136 AS-COLOCROSSING, US 367 2440 2908 1170 DNIC-ASBLK-00306-00371, US 7018 2093 22887 1542 ATT-INTERNET4, US 11776 1896 258 216 ATLANTICBB-JOHNSTOWN, US 6167 1860 3758 488 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 1177 92 966 AKAMAI-ASN1, NL 3257 931 2076 748 GTT-BACKBONE GTT, US 3215 895 4818 289 France Telecom - Orange, FR 25019 815 1301 129 SAUDINETSTC-AS, SA 8452 777 1842 17 TE-AS TE-AS, EG 34984 685 76 408 TELLCOM-AS, TR 58224 641 390 437 TCI, IR 212238 625 44 551 CDNEXT, GB 8376 568 53 21 Jordan Data Communications, JO 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 7464 2012 999 UNINET, MX 11830 1977 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 1195 371 22 Telefonica del Peru S.A.A., PE 26615 1027 2503 52 TIM SA, BR 18881 883 1127 31 TELEFONICA BRASIL S.A, BR 27651 648 94 35 ENTEL CHILE S.A., CL 28006 646 77 298 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 1495 389 16 LINKdotNET-AS, EG 29571 1217 101 68 ORANGE-COTE-IVOIRE, CI 24835 1037 523 36 RAYA-AS, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 36992 603 1228 124 ETISALAT-MISR, EG 36935 582 124 165 Vodafone-, EG 36914 544 82 3 KENET-AS, KE 37069 469 1046 15 MOBINIL, EG 36903 457 205 331 MT-MPLS, MA 2018 372 318 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 13420 40823 5042 AMAZON-02, US 9808 10804 8756 95 CHINAMOBILE-CN China Mobile Communication 8151 7464 2012 999 UNINET, MX 22773 3349 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3243 54815 2494 DNIC-AS-00749, US 4155 2726 207 1671 USDA-1, US 36352 2543 209 1136 AS-COLOCROSSING, US 367 2440 2908 1170 DNIC-ASBLK-00306-00371, US 7018 2093 22887 1542 ATT-INTERNET4, US 11830 1977 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 10804 10709 CHINAMOBILE-CN China Mobile Communications Grou 8151 7464 6465 UNINET, MX 22773 3349 3185 ASN-CXA-ALL-CCI-22773-RDC, US 11830 1977 1913 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1896 1680 ATLANTICBB-JOHNSTOWN, US 56046 1772 1586 CMNET-JIANGSU-AP China Mobile communications co 56041 1572 1494 CMNET-ZHEJIANG-AP China Mobile communications c 24863 1495 1479 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 /11:41 /12:150 /13:209 /14:573 /15:1100 /16:7638 /17:3457 /18:4223 /19:7676 /20:12418 /21:15313 /22:27513 /23:27798 /24:155894 /25:62 /26:81 /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 3993 7464 UNINET, MX 22773 2503 3349 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2330 13420 AMAZON-02, US 11830 1679 1977 Instituto Costarricense de Electricidad y Telecom., CR 10620 1081 1902 Telmex Colombia S.A., CO 39891 1081 1936 ALJAWWALSTC-AS, SA 36352 1025 2543 AS-COLOCROSSING, US 19901 975 1261 BRSPD-PUBLIC, US 209 964 1663 CENTURYLINK-US-LEGACY-QWEST, US 11776 883 1896 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 2:474 3:765 4:6 5:804 6:156 7:5 8:683 11:171 12:999 13:364 14:115 15:301 16:246 17:6 18:881 20:180 21:4 22:188 23:2580 24:638 27:21 29:19 31:509 32:10 33:1 34:10 35:133 36:1714 37:948 38:2043 39:554 40:62 41:952 42:21 43:202 44:36 45:3584 46:963 47:92 49:18 50:362 51:386 52:1388 54:308 55:1093 56:11 57:18 58:17 59:15 60:16 61:74 62:555 63:752 64:1917 65:1086 66:1540 67:959 68:397 69:1132 70:415 71:203 72:733 74:949 75:427 76:248 77:476 78:371 79:286 80:303 81:369 82:743 83:232 84:341 85:464 86:232 87:232 88:292 89:863 90:104 91:940 92:613 93:486 94:936 95:679 96:288 97:59 98:455 99:179 100:35 101:23 102:370 103:1203 104:1632 105:215 106:16 107:1523 108:546 109:388 110:35 111:1962 112:460 113:39 114:40 115:22 116:62 117:1047 118:38 119:124 120:1220 121:45 122:58 123:78 124:57 125:25 128:500 129:399 130:690 131:899 132:563 133:211 134:495 135:113 136:608 137:515 138:856 139:430 140:701 141:461 142:1024 143:675 144:434 145:135 146:682 147:492 148:869 149:774 150:353 151:644 152:494 153:129 154:1716 155:862 156:1451 157:372 158:551 159:722 160:940 161:668 162:980 163:360 164:740 165:776 166:787 167:628 168:1107 169:154 170:1624 171:121 172:1368 173:839 174:252 175:62 176:789 177:826 178:510 179:689 180:49 181:1821 182:29 183:930 184:450 185:3545 186:2041 187:1400 188:815 189:1761 190:4216 191:445 192:5174 193:1895 194:1237 195:961 196:711 197:1590 198:2730 199:4910 200:3595 201:3266 202:994 203:725 204:2145 205:1953 206:1538 207:1520 208:1433 209:1941 210:290 211:436 212:1067 213:851 214:979 215:42 216:2529 217:427 218:520 219:19 220:28 221:339 222:31 223:792 End of report