IPv4 R&E Routing Table Report 23:05 GMT Fri 21 Apr, 2023 IPv4 BGP Table (Global) as seen at Singapore. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Singapore/ Analysis Summary ---------------- BGP routing table entries examined: 911874 Prefixes after maximum aggregation (per Origin AS): 346659 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 448412 Number of IPv4 prefixes with a valid ROA: 391599 Number of IPv4 prefixes with an invalid ROA: 1869 Number of IPv4 prefixes with no ROA: 518406 Total ASes present in the Internet Routing Table: 74152 Prefixes per ASN: 12.30 Origin-only ASes present in the Internet Routing Table: 63663 Origin ASes announcing only one prefix: 26169 Transit ASes present in the Internet Routing Table: 10489 Transit-only ASes present in the Internet Routing Table: 431 Paths with bogon ASNs present in the IPv4 Routing Table: 35 Average AS path length visible in the Internet Routing Table: 4.6 Max AS path length visible: 66 Max AS path prepend of ASN ( 37447) 64 Prefixes from unregistered ASNs in the Routing Table: 1379 Number of instances of unregistered ASNs: 1379 Number of 32-bit ASNs allocated by the RIRs: 41701 Number of 32-bit ASNs visible in the Routing Table: 34422 Prefixes from 32-bit ASNs in the Routing Table: 169615 Number of bogon 32-bit ASNs visible in the Routing Table: 8 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 854 Number of addresses announced to Internet: 3059490560 Equivalent to 182 /8s, 92 /16s and 31 /24s Percentage of available address space announced: 82.6 Percentage of allocated address space announced: 82.6 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: 306127 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 236732 Total APNIC prefixes after maximum aggregation: 68348 APNIC Deaggregation factor: 3.46 Prefixes being announced from the APNIC address blocks: 231129 Unique aggregates announced from the APNIC address blocks: 97710 APNIC Region origin ASes present in the Internet Routing Table: 13297 APNIC Prefixes per ASN: 17.38 APNIC Region origin ASes announcing only one prefix: 3910 APNIC Region transit ASes present in the Internet Routing Table: 1783 Average APNIC Region AS path length visible: 4.3 Max APNIC Region AS path length visible: 33 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8662 Number of APNIC addresses announced to Internet: 773033472 Equivalent to 46 /8s, 19 /16s and 142 /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, 131072-151865 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: 267440 Total ARIN prefixes after maximum aggregation: 121512 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 269942 Unique aggregates announced from the ARIN address blocks: 130827 ARIN Region origin ASes present in the Internet Routing Table: 19022 ARIN Prefixes per ASN: 14.19 ARIN Region origin ASes announcing only one prefix: 6959 ARIN Region transit ASes present in the Internet Routing Table: 1894 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 28 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4769 Number of ARIN addresses announced to Internet: 1283689472 Equivalent to 76 /8s, 131 /16s and 140 /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, 393216-401308 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, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 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: 259345 Total RIPE prefixes after maximum aggregation: 121970 RIPE Deaggregation factor: 2.13 Prefixes being announced from the RIPE address blocks: 255258 Unique aggregates announced from the RIPE address blocks: 157727 RIPE Region origin ASes present in the Internet Routing Table: 28291 RIPE Prefixes per ASN: 9.02 RIPE Region origin ASes announcing only one prefix: 12049 RIPE Region transit ASes present in the Internet Routing Table: 3985 Average RIPE Region AS path length visible: 4.7 Max RIPE Region AS path length visible: 32 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11140 Number of RIPE addresses announced to Internet: 717848832 Equivalent to 42 /8s, 201 /16s and 129 /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 196608-213403 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 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: 117558 Total LACNIC prefixes after maximum aggregation: 28211 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 116833 Unique aggregates announced from the LACNIC address blocks: 49265 LACNIC Region origin ASes present in the Internet Routing Table: 10973 LACNIC Prefixes per ASN: 10.65 LACNIC Region origin ASes announcing only one prefix: 2643 LACNIC Region transit ASes present in the Internet Routing Table: 2293 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 49 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8766 Number of LACNIC addresses announced to Internet: 176732416 Equivalent to 10 /8s, 136 /16s and 185 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-273820 + 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: 29420 Total AfriNIC prefixes after maximum aggregation: 5802 AfriNIC Deaggregation factor: 5.07 Prefixes being announced from the AfriNIC address blocks: 37858 Unique aggregates announced from the AfriNIC address blocks: 12299 AfriNIC Region origin ASes present in the Internet Routing Table: 1737 AfriNIC Prefixes per ASN: 21.80 AfriNIC Region origin ASes announcing only one prefix: 608 AfriNIC Region transit ASes present in the Internet Routing Table: 339 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 66 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1085 Number of AfriNIC addresses announced to Internet: 107516160 Equivalent to 6 /8s, 104 /16s and 145 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 45/8, 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 9460 8704 36 CHINAMOBILE-CN China Mobile Communicati 7545 5725 786 690 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3675 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3560 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3394 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2938 490 237 BBIL-AP BHARTI Airtel Ltd., IN 24560 2380 836 440 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2303 11250 586 KIXS-AS-KR Korea Telecom, KR 4755 2175 442 196 TATACOMM-AS TATA Communications formerl 45090 2148 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 8231 10773 2946 AMAZON-02, US 11492 4543 301 602 CABLEONE, US 7155 3969 279 48 VIASAT-SP-BACKBONE, US 22773 3589 3057 282 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3522 1320 64 SHAW, CA 16625 3154 1576 2349 AKAMAI-AS, US 749 3071 53111 2323 DNIC-AS-00749, US 396982 2630 3590 362 GOOGLE-CLOUD-PLATFORM, US 7018 2579 24123 1572 ATT-INTERNET4, US 30036 2510 362 438 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7218 1706 140 UNI2-AS, ES 39891 4833 286 59 ALJAWWALSTC-AS, SA 20940 4070 3399 163 AKAMAI-ASN1, NL 8551 3894 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2895 2292 909 ROSTELECOM-AS, RU 9009 2662 250 1387 M247, RO 34984 2276 359 612 TELLCOM-AS, TR 6849 2018 307 18 UKRTELNET, UA 58224 1851 950 543 TCI, IR 13188 1606 100 26 TRIOLAN, UA Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 11245 3361 595 Uninet S.A. de C.V., MX 10620 3503 507 851 Telmex Colombia S.A., CO 13999 2328 357 614 Mega Cable, S.A. de C.V., MX 11830 2261 369 64 Instituto Costarricense de Electricidad 28573 1334 2324 240 Claro NXT Telecomunicacoes Ltda, BR 6503 1299 339 514 Axtel, S.A.B. de C.V., MX 3816 1293 760 170 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1132 370 22 Telefonica del Peru S.A.A., PE 11664 1097 180 444 Techtel LMDS Comunicaciones Interactiva 26615 1032 2498 45 TIM SA, BR Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 1576 393 19 LINKdotNET-AS, EG 24835 1553 533 30 RAYA-AS, EG 36992 1338 1518 275 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1025 67 51 ORANGE-COTE-IVOIRE, CI 36935 875 520 42 Vodafone-, EG 6713 549 1861 34 IAM-AS, MA 15399 535 54 47 WANANCHI-, KE 37342 493 32 1 MOVITEL, MZ 24757 485 73 5 EthioNet-AS, ET Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 11245 3361 595 Uninet S.A. de C.V., MX 9808 9460 8704 36 CHINAMOBILE-CN China Mobile Communicati 16509 8231 10773 2946 AMAZON-02, US 12479 7218 1706 140 UNI2-AS, ES 7545 5725 786 690 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 286 59 ALJAWWALSTC-AS, SA 11492 4543 301 602 CABLEONE, US 20940 4070 3399 163 AKAMAI-ASN1, NL 7155 3969 279 48 VIASAT-SP-BACKBONE, US 8551 3894 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 9460 9424 CHINAMOBILE-CN China Mobile Communications Grou 12479 7218 7078 UNI2-AS, ES 16509 8231 5285 AMAZON-02, US 7545 5725 5035 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4774 ALJAWWALSTC-AS, SA 11492 4543 3941 CABLEONE, US 7155 3969 3921 VIASAT-SP-BACKBONE, US 20940 4070 3907 AKAMAI-ASN1, NL 8551 3894 3857 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7552 3675 3654 VIETEL-AS-AP Viettel Group, VN Complete listing at https://bgp.nsrc.org/REN/Singapore/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 198802 UNALLOCATED 5.105.41.0/24 207279 MARKAHOST-TELEKOMUNIKASYON-L 198802 UNALLOCATED 5.105.82.0/24 207279 MARKAHOST-TELEKOMUNIKASYON-L 198802 UNALLOCATED 5.105.102.0/24 207279 MARKAHOST-TELEKOMUNIKASYON-L 3507 UNALLOCATED 5.105.166.0/24 213035 AS-SERVERION Serverion B.V., 198802 UNALLOCATED 5.105.197.0/24 207279 MARKAHOST-TELEKOMUNIKASYON-L 33492 UNALLOCATED 8.6.184.0/23 3356 LEVEL3, US 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.131.185.0/24 Origin: 174 COGENT-174, US 23.131.185.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.186.0/24 Origin: 174 COGENT-174, US 23.131.186.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.187.0/24 Origin: 174 COGENT-174, US 23.131.187.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.188.0/24 Origin: 174 COGENT-174, US 23.131.188.0/24 Transit: 2914 NTT-LTD-2914, US 23.139.232.0/24 Origin: 211619 MAXKO, HR 23.139.232.0/24 Transit: 42864 GIGANET-HU GigaNet Internet Service Prov Complete listing at https://bgp.nsrc.org/REN/Singapore/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 /8:16 /9:14 /10:38 /11:103 /12:298 /13:575 /14:1194 /15:2083 /16:13411 /17:8151 /18:13692 /19:24777 /20:42979 /21:50894 /22:108809 /23:97212 /24:547619 /25:0 /26:1 /27:1 /28:0 /29:1 /30:6 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6275 7218 UNI2-AS, ES 8151 5179 11245 Uninet S.A. de C.V., MX 39891 3632 4833 ALJAWWALSTC-AS, SA 11492 3452 4543 CABLEONE, US 8551 3366 3894 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3331 3522 SHAW, CA 7155 3039 3969 VIASAT-SP-BACKBONE, US 22773 2659 3589 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2167 2510 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2057 3503 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1774 2:1265 3:175 4:5 5:4499 6:128 7:6 8:1512 9:1 11:172 12:1536 13:385 14:2314 15:299 16:183 17:368 18:415 20:254 21:4 22:188 23:6237 24:2577 25:6 27:2487 29:19 31:2509 32:77 34:12 35:105 36:1945 37:4640 38:4453 39:820 40:151 41:3962 42:1207 43:2314 44:307 45:16494 46:4255 47:356 49:1732 50:1822 51:573 52:1589 54:391 55:856 56:8 57:114 58:1708 59:1099 60:989 61:2477 62:2645 63:1922 64:5678 65:2316 66:4942 67:2991 68:1376 69:4149 70:1246 71:674 72:2978 74:2612 75:1443 76:598 77:2430 78:1851 79:3175 80:2106 81:1747 82:1481 83:1282 84:1514 85:2993 86:761 87:1985 88:1230 89:3633 90:611 91:7702 92:2065 93:2616 94:3598 95:4005 96:1327 97:336 98:1154 99:745 100:73 101:1302 102:2716 103:31203 104:4630 105:484 106:935 107:2526 108:1021 109:4417 110:2079 111:3093 112:2027 113:1541 114:1640 115:2008 116:1902 117:2559 118:2361 119:2004 120:1768 121:1043 122:2615 123:2163 124:1572 125:2467 128:1244 129:1049 130:1008 131:1976 132:846 133:422 134:1893 135:304 136:878 137:947 138:2556 139:1554 140:1223 141:1455 142:1426 143:1491 144:1156 145:347 146:1924 147:1574 148:2316 149:2094 150:877 151:1157 152:1930 153:489 154:4442 155:1433 156:1766 157:1301 158:1054 159:2301 160:2538 161:1520 162:3513 163:1511 164:1611 165:1729 166:1021 167:1741 168:3836 169:940 170:4588 171:882 172:3555 173:2941 174:1069 175:1167 176:3683 177:4569 178:3580 179:2149 180:2605 181:3427 182:3333 183:1969 184:2356 185:20183 186:4749 187:3935 188:4088 189:3544 190:9179 191:1427 192:10907 193:8868 194:7320 195:5139 196:3142 197:2372 198:5867 199:6088 200:7897 201:5852 202:10318 203:10196 204:4580 205:3507 206:4094 207:3367 208:4060 209:4837 210:4165 211:2396 212:4126 213:3567 214:1084 215:59 216:6629 217:2704 218:1264 219:406 220:1767 221:969 222:709 223:2152 End of report