IPv4 R&E Routing Table Report 20:15 GMT Mon 26 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: 264000 Prefixes after maximum aggregation (per Origin AS): 115984 Deaggregation factor: 2.28 Unique aggregates announced (without unneeded subnets): 135560 Number of IPv4 prefixes with a valid ROA: 118789 Number of IPv4 prefixes with an invalid ROA: 41 Number of IPv4 prefixes with no ROA: 145170 Total ASes present in the Internet Routing Table: 19903 Prefixes per ASN: 13.26 Origin-only ASes present in the Internet Routing Table: 17160 Origin ASes announcing only one prefix: 7800 Transit ASes present in the Internet Routing Table: 2743 Transit-only ASes present in the Internet Routing Table: 756 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: 311 Number of instances of unregistered ASNs: 315 Number of 32-bit ASNs allocated by the RIRs: 46520 Number of 32-bit ASNs visible in the Routing Table: 7524 Prefixes from 32-bit ASNs in the Routing Table: 27998 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: 112 Number of addresses announced to Internet: 1557837533 Equivalent to 92 /8s, 218 /16s and 182 /24s Percentage of available address space announced: 42.1 Percentage of allocated address space announced: 42.1 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: 83203 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 32617 Total APNIC prefixes after maximum aggregation: 7562 APNIC Deaggregation factor: 4.31 Prefixes being announced from the APNIC address blocks: 30989 Unique aggregates announced from the APNIC address blocks: 7608 APNIC Region origin ASes present in the Internet Routing Table: 1239 APNIC Prefixes per ASN: 25.01 APNIC Region origin ASes announcing only one prefix: 491 APNIC Region transit ASes present in the Internet Routing Table: 221 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: 581 Number of APNIC addresses announced to Internet: 166649196 Equivalent to 9 /8s, 238 /16s and 221 /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: 125850 Total ARIN prefixes after maximum aggregation: 65967 ARIN Deaggregation factor: 1.91 Prefixes being announced from the ARIN address blocks: 122991 Unique aggregates announced from the ARIN address blocks: 66368 ARIN Region origin ASes present in the Internet Routing Table: 9359 ARIN Prefixes per ASN: 13.14 ARIN Region origin ASes announcing only one prefix: 3908 ARIN Region transit ASes present in the Internet Routing Table: 879 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: 2195 Number of ARIN addresses announced to Internet: 961336801 Equivalent to 57 /8s, 76 /16s and 213 /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: 49529 Total RIPE prefixes after maximum aggregation: 26541 RIPE Deaggregation factor: 1.87 Prefixes being announced from the RIPE address blocks: 51267 Unique aggregates announced from the RIPE address blocks: 37214 RIPE Region origin ASes present in the Internet Routing Table: 4599 RIPE Prefixes per ASN: 11.15 RIPE Region origin ASes announcing only one prefix: 1942 RIPE Region transit ASes present in the Internet Routing Table: 705 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: 1889 Number of RIPE addresses announced to Internet: 285628240 Equivalent to 17 /8s, 6 /16s and 87 /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: 44582 Total LACNIC prefixes after maximum aggregation: 13318 LACNIC Deaggregation factor: 3.35 Prefixes being announced from the LACNIC address blocks: 43724 Unique aggregates announced from the LACNIC address blocks: 19887 LACNIC Region origin ASes present in the Internet Routing Table: 3523 LACNIC Prefixes per ASN: 12.41 LACNIC Region origin ASes announcing only one prefix: 1342 LACNIC Region transit ASes present in the Internet Routing Table: 726 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: 2701 Number of LACNIC addresses announced to Internet: 97131328 Equivalent to 5 /8s, 202 /16s and 27 /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: 11111 Total AfriNIC prefixes after maximum aggregation: 2382 AfriNIC Deaggregation factor: 4.66 Prefixes being announced from the AfriNIC address blocks: 14917 Unique aggregates announced from the AfriNIC address blocks: 4372 AfriNIC Region origin ASes present in the Internet Routing Table: 300 AfriNIC Prefixes per ASN: 49.72 AfriNIC Region origin ASes announcing only one prefix: 117 AfriNIC Region transit ASes present in the Internet Routing Table: 77 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: 158 Number of AfriNIC addresses announced to Internet: 47042048 Equivalent to 2 /8s, 205 /16s and 206 /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 10845 8756 95 CHINAMOBILE-CN China Mobile Communication 56046 1848 811 186 CMNET-JIANGSU-AP China Mobile communicati 56041 1586 715 80 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1482 192 50 CMNET-HUNAN-AP China Mobile communication 24547 863 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 17561 816 52 382 LCS-AS-AP LARUS Limited, HK 24444 778 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 605 2170 465 SINET-AS Research Organization of Informa 24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 517 848 138 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 13524 40826 5156 AMAZON-02, US 22773 3343 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3231 54784 2482 DNIC-AS-00749, US 4155 2746 209 1683 USDA-1, US 36352 2566 210 1128 AS-COLOCROSSING, US 367 2437 2910 1169 DNIC-ASBLK-00306-00371, US 7018 2074 22883 1527 ATT-INTERNET4, US 11776 1900 259 211 ATLANTICBB-JOHNSTOWN, US 6167 1876 3829 493 CELLCO-PART, US 209 1661 4889 271 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 1176 92 961 AKAMAI-ASN1, NL 3257 931 2076 748 GTT-BACKBONE GTT, US 3215 894 4818 289 France Telecom - Orange, FR 25019 817 1301 129 SAUDINETSTC-AS, SA 8452 779 1841 16 TE-AS TE-AS, EG 34984 688 76 410 TELLCOM-AS, TR 212238 622 44 548 CDNEXT, GB 203214 587 43 377 HULUMTELE, IQ 8376 573 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 7438 2003 986 UNINET, MX 11830 1990 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 1033 2503 52 TIM SA, BR 18881 883 1127 31 TELEFONICA BRASIL S.A, BR 27651 648 94 35 ENTEL CHILE S.A., CL 28006 647 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 1482 389 16 LINKdotNET-AS, EG 24835 1049 535 35 RAYA-AS, EG 29571 988 100 74 ORANGE-COTE-IVOIRE, CI 20011 980 185 285 INTERNET-SOLUTIONS, ZA 36992 603 1228 124 ETISALAT-MISR, EG 36935 601 128 168 Vodafone-, EG 37069 567 1046 15 MOBINIL, EG 36914 551 82 3 KENET-AS, KE 36903 457 205 331 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 13524 40826 5156 AMAZON-02, US 9808 10845 8756 95 CHINAMOBILE-CN China Mobile Communication 8151 7438 2003 986 UNINET, MX 22773 3343 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3231 54784 2482 DNIC-AS-00749, US 4155 2746 209 1683 USDA-1, US 36352 2566 210 1128 AS-COLOCROSSING, US 367 2437 2910 1169 DNIC-ASBLK-00306-00371, US 7018 2074 22883 1527 ATT-INTERNET4, US 11830 1990 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 10845 10750 CHINAMOBILE-CN China Mobile Communications Grou 8151 7438 6452 UNINET, MX 22773 3343 3179 ASN-CXA-ALL-CCI-22773-RDC, US 11830 1990 1926 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1900 1689 ATLANTICBB-JOHNSTOWN, US 56046 1848 1662 CMNET-JIANGSU-AP China Mobile communications co 56041 1586 1506 CMNET-ZHEJIANG-AP China Mobile communications c 24863 1482 1466 LINKdotNET-AS, EG 36352 2566 1438 AS-COLOCROSSING, 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 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 /10:30 /11:41 /12:150 /13:209 /14:574 /15:1100 /16:7645 /17:3424 /18:4221 /19:7638 /20:12548 /21:15218 /22:27394 /23:27860 /24:155700 /25:62 /26:82 /27:36 /28:13 /29:16 /30:10 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3997 7438 UNINET, MX 22773 2497 3343 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2353 13524 AMAZON-02, US 11830 1693 1990 Instituto Costarricense de Electricidad y Telecom., CR 10620 1081 1902 Telmex Colombia S.A., CO 39891 1081 1936 ALJAWWALSTC-AS, SA 36352 1042 2566 AS-COLOCROSSING, US 19901 983 1272 BRSPD-PUBLIC, US 209 964 1661 CENTURYLINK-US-LEGACY-QWEST, US 11776 883 1900 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 2:473 3:785 4:5 5:792 6:155 7:5 8:678 11:171 12:989 13:379 14:126 15:302 16:247 17:6 18:890 20:183 21:4 22:188 23:2588 24:641 27:24 29:19 31:507 32:9 33:1 34:10 35:136 36:1768 37:993 38:1900 39:552 40:62 41:985 42:21 43:206 44:37 45:3633 46:963 47:92 49:26 50:363 51:386 52:1394 54:316 55:1097 56:11 57:19 58:16 59:31 60:16 61:73 62:543 63:753 64:1939 65:1094 66:1544 67:968 68:399 69:1127 70:415 71:201 72:734 74:947 75:324 76:252 77:494 78:350 79:241 80:310 81:374 82:731 83:234 84:338 85:419 86:232 87:209 88:292 89:867 90:104 91:927 92:636 93:483 94:944 95:678 96:289 97:60 98:453 99:180 100:36 101:18 102:359 103:1241 104:1618 105:216 106:18 107:1526 108:550 109:403 110:40 111:1920 112:485 113:39 114:42 115:24 116:62 117:1043 118:61 119:89 120:1247 121:44 122:65 123:76 124:57 125:25 128:493 129:393 130:694 131:911 132:570 133:211 134:495 135:113 136:607 137:508 138:914 139:431 140:703 141:458 142:1027 143:692 144:438 145:132 146:673 147:515 148:879 149:764 150:351 151:645 152:476 153:129 154:1704 155:861 156:1375 157:383 158:561 159:720 160:822 161:634 162:996 163:431 164:718 165:774 166:789 167:624 168:1111 169:158 170:1547 171:121 172:1379 173:848 174:252 175:58 176:785 177:835 178:509 179:682 180:45 181:1820 182:29 183:955 184:450 185:3522 186:2077 187:1430 188:832 189:1750 190:4207 191:448 192:5187 193:1876 194:1239 195:935 196:683 197:1568 198:2746 199:4915 200:3634 201:3271 202:1007 203:751 204:2150 205:1943 206:1534 207:1523 208:1428 209:1911 210:297 211:420 212:1031 213:781 214:966 215:42 216:2540 217:428 218:523 219:18 220:29 221:350 222:31 223:798 End of report