IPv4 R&E Routing Table Report 20:15 GMT Sat 26 Jul, 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: 280688 Prefixes after maximum aggregation (per Origin AS): 120858 Deaggregation factor: 2.32 Unique aggregates announced (without unneeded subnets): 143649 Number of IPv4 prefixes with a valid ROA: 130990 Number of IPv4 prefixes with an invalid ROA: 212 Number of IPv4 prefixes with no ROA: 149486 Total ASes present in the Internet Routing Table: 20888 Prefixes per ASN: 13.44 Origin-only ASes present in the Internet Routing Table: 17983 Origin ASes announcing only one prefix: 8081 Transit ASes present in the Internet Routing Table: 2905 Transit-only ASes present in the Internet Routing Table: 716 Paths with bogon ASNs present in the IPv4 Routing Table: 13 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: 348 Number of instances of unregistered ASNs: 380 Number of 32-bit ASNs allocated by the RIRs: 46946 Number of 32-bit ASNs visible in the Routing Table: 8333 Prefixes from 32-bit ASNs in the Routing Table: 33635 Number of bogon 32-bit ASNs visible in the Routing Table: 74 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 100 Number of addresses announced to Internet: 1644391429 Equivalent to 98 /8s, 3 /16s and 108 /24s Percentage of available address space announced: 44.4 Percentage of allocated address space announced: 44.4 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: 89469 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 35238 Total APNIC prefixes after maximum aggregation: 7708 APNIC Deaggregation factor: 4.57 Prefixes being announced from the APNIC address blocks: 34216 Unique aggregates announced from the APNIC address blocks: 8127 APNIC Region origin ASes present in the Internet Routing Table: 1241 APNIC Prefixes per ASN: 27.57 APNIC Region origin ASes announcing only one prefix: 499 APNIC Region transit ASes present in the Internet Routing Table: 198 Average APNIC Region AS path length visible: 7.4 Max APNIC Region AS path length visible: 17 Number of APNIC region 32-bit ASNs visible in the Routing Table: 579 Number of APNIC addresses announced to Internet: 173366892 Equivalent to 10 /8s, 85 /16s and 94 /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: 126608 Total ARIN prefixes after maximum aggregation: 66584 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 125249 Unique aggregates announced from the ARIN address blocks: 68173 ARIN Region origin ASes present in the Internet Routing Table: 9364 ARIN Prefixes per ASN: 13.38 ARIN Region origin ASes announcing only one prefix: 3896 ARIN Region transit ASes present in the Internet Routing Table: 885 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: 2205 Number of ARIN addresses announced to Internet: 1028213257 Equivalent to 61 /8s, 73 /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: 50872 Total RIPE prefixes after maximum aggregation: 27415 RIPE Deaggregation factor: 1.86 Prefixes being announced from the RIPE address blocks: 52218 Unique aggregates announced from the RIPE address blocks: 38261 RIPE Region origin ASes present in the Internet Routing Table: 4653 RIPE Prefixes per ASN: 11.22 RIPE Region origin ASes announcing only one prefix: 1956 RIPE Region transit ASes present in the Internet Routing Table: 708 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 25 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1926 Number of RIPE addresses announced to Internet: 287502416 Equivalent to 17 /8s, 34 /16s and 240 /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: 56488 Total LACNIC prefixes after maximum aggregation: 16589 LACNIC Deaggregation factor: 3.41 Prefixes being announced from the LACNIC address blocks: 54729 Unique aggregates announced from the LACNIC address blocks: 24616 LACNIC Region origin ASes present in the Internet Routing Table: 4493 LACNIC Prefixes per ASN: 12.18 LACNIC Region origin ASes announcing only one prefix: 1622 LACNIC Region transit ASes present in the Internet Routing Table: 898 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3472 Number of LACNIC addresses announced to Internet: 109268288 Equivalent to 6 /8s, 131 /16s and 77 /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: 11134 Total AfriNIC prefixes after maximum aggregation: 2301 AfriNIC Deaggregation factor: 4.84 Prefixes being announced from the AfriNIC address blocks: 14176 Unique aggregates announced from the AfriNIC address blocks: 4376 AfriNIC Region origin ASes present in the Internet Routing Table: 289 AfriNIC Prefixes per ASN: 49.05 AfriNIC Region origin ASes announcing only one prefix: 108 AfriNIC Region transit ASes present in the Internet Routing Table: 75 Average AfriNIC Region AS path length visible: 6.6 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 151 Number of AfriNIC addresses announced to Internet: 45919488 Equivalent to 2 /8s, 188 /16s and 173 /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 11868 8761 115 CHINAMOBILE-CN China Mobile Communication 56046 2755 811 189 CMNET-JIANGSU-AP China Mobile communicati 56041 1642 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1641 192 50 CMNET-HUNAN-AP China Mobile communication 24547 873 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 775 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 613 2169 463 SINET-AS Research Organization of Informa 24445 523 496 66 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 522 883 138 ALIBABA-CN-NET Alibaba US Technology Co., 132525 468 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 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 13682 40974 5277 AMAZON-02, US 22773 3338 3013 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3223 54766 2474 DNIC-AS-00749, US 4155 2874 218 1726 USDA-1, US 36352 2557 209 1144 AS-COLOCROSSING, US 367 2479 3042 1161 DNIC-ASBLK-00306-00371, US 6167 1937 4026 519 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 7018 1655 22847 1244 ATT-INTERNET4, US 209 1653 4889 266 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 1169 91 952 AKAMAI-ASN1, NL 3257 1051 2083 815 GTT-BACKBONE GTT, US 34984 926 116 597 TELLCOM-AS, TR 3215 887 4818 291 France Telecom - Orange, FR 8452 830 1841 16 TE-AS TE-AS, EG 25019 805 1301 130 SAUDINETSTC-AS, SA 212238 657 46 581 CDNEXT, GB 8376 565 52 24 Jordan Data Communications, JO 51167 564 113 248 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 7409 1992 895 UNINET, MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 10620 1690 242 1218 Telmex Colombia S.A., CO 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1189 371 22 Telefonica del Peru S.A.A., PE 26615 1016 2487 55 TIM SA, BR 18881 886 1127 31 TELEFONICA BRASIL S.A, BR 11172 727 124 69 Alestra, S. de R.L. de C.V., MX 27651 650 92 46 ENTEL CHILE S.A., CL 28006 643 76 296 CORPORACION NACIONAL DE TELECOMUNICACIONE 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 24835 1435 572 23 RAYA-AS, EG 29571 1157 101 66 ORANGE-COTE-IVOIRE, CI 24863 1048 388 19 LINKdotNET-AS, EG 37069 953 1112 11 MOBINIL, EG 36914 577 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36935 549 518 29 Vodafone-, EG 36903 456 204 330 MT-MPLS, MA 36992 386 968 201 ETISALAT-MISR, EG 2018 375 318 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 13682 40974 5277 AMAZON-02, US 9808 11868 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 7409 1992 895 UNINET, MX 22773 3338 3013 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3223 54766 2474 DNIC-AS-00749, US 4155 2874 218 1726 USDA-1, US 56046 2755 811 189 CMNET-JIANGSU-AP China Mobile communicati 36352 2557 209 1144 AS-COLOCROSSING, US 367 2479 3042 1161 DNIC-ASBLK-00306-00371, US 11830 1987 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 11868 11753 CHINAMOBILE-CN China Mobile Communications Grou 8151 7409 6514 UNINET, MX 22773 3338 3175 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2755 2566 CMNET-JIANGSU-AP China Mobile communications co 11830 1987 1923 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1902 1687 ATLANTICBB-JOHNSTOWN, US 56047 1641 1591 CMNET-HUNAN-AP China Mobile communications corp 56041 1642 1564 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1937 1418 CELLCO-PART, 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 13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US 21861 UNALLOCATED 12.37.59.0/24 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 23.147.224.0/24 Origin: 27392 639-DATACENTERS, US 23.147.224.0/24 Transit: 3356 LEVEL3, US 23.147.225.0/24 Origin: 27392 639-DATACENTERS, US 23.147.225.0/24 Transit: 3356 LEVEL3, US 23.147.226.0/24 Origin: 27392 639-DATACENTERS, US 23.147.226.0/24 Transit: 3356 LEVEL3, 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 /8:14 /9:11 /10:31 /11:51 /12:159 /13:216 /14:592 /15:1117 /16:7763 /17:3488 /18:4238 /19:7790 /20:13358 /21:15897 /22:28739 /23:29367 /24:167623 /25:65 /26:81 /27:40 /28:18 /29:14 /30:10 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3988 7409 UNINET, MX 22773 2493 3338 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2350 13682 AMAZON-02, US 11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1025 1350 BRSPD-PUBLIC, US 36352 1016 2557 AS-COLOCROSSING, US 10620 995 1690 Telmex Colombia S.A., CO 209 962 1653 CENTURYLINK-US-LEGACY-QWEST, US 11776 883 1902 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:36 2:446 3:854 4:5 5:813 6:145 7:5 8:656 11:171 12:966 13:406 14:135 15:309 16:247 17:3 18:890 20:190 21:4 22:188 23:2685 24:682 27:37 29:19 31:542 32:18 33:1 34:10 35:175 36:2637 37:811 38:2657 39:585 40:84 41:1088 42:21 43:223 44:32 45:4241 46:1008 47:110 49:26 50:482 51:387 52:1382 54:319 55:1109 56:11 57:22 58:18 59:35 60:29 61:62 62:514 63:781 64:1954 65:1129 66:1619 67:1100 68:372 69:1265 70:455 71:190 72:699 74:968 75:317 76:240 77:482 78:367 79:246 80:309 81:398 82:739 83:227 84:341 85:488 86:244 87:220 88:307 89:666 90:107 91:961 92:689 93:481 94:978 95:684 96:273 97:53 98:498 99:189 100:40 101:63 102:380 103:1300 104:1712 105:200 106:40 107:1533 108:521 109:443 110:46 111:2004 112:689 113:38 114:61 115:23 116:56 117:1139 118:78 119:82 120:1457 121:51 122:70 123:136 124:66 125:25 126:1 128:527 129:398 130:671 131:1019 132:557 133:212 134:490 135:128 136:683 137:578 138:1037 139:445 140:769 141:367 142:1051 143:818 144:439 145:122 146:685 147:508 148:1004 149:739 150:211 151:806 152:613 153:131 154:1182 155:908 156:948 157:408 158:573 159:765 160:849 161:691 162:1055 163:440 164:725 165:602 166:815 167:714 168:1520 169:162 170:1766 171:105 172:1339 173:842 174:360 175:83 176:804 177:1112 178:611 179:860 180:45 181:2263 182:47 183:1091 184:458 185:3471 186:2872 187:1646 188:850 189:1994 190:6027 191:542 192:5301 193:1863 194:1216 195:985 196:720 197:1179 198:2769 199:5100 200:4704 201:3833 202:1083 203:725 204:2295 205:1838 206:1591 207:1630 208:1525 209:1999 210:359 211:467 212:1037 213:785 214:936 215:37 216:2601 217:443 218:559 219:18 220:32 221:461 222:24 223:1134 End of report