IPv4 R&E Routing Table Report 23:05 GMT Tue 11 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: 910420 Prefixes after maximum aggregation (per Origin AS): 346315 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 447622 Number of IPv4 prefixes with a valid ROA: 385999 Number of IPv4 prefixes with an invalid ROA: 1638 Number of IPv4 prefixes with no ROA: 522783 Total ASes present in the Internet Routing Table: 74128 Prefixes per ASN: 12.28 Origin-only ASes present in the Internet Routing Table: 63655 Origin ASes announcing only one prefix: 26180 Transit ASes present in the Internet Routing Table: 10473 Transit-only ASes present in the Internet Routing Table: 431 Paths with bogon ASNs present in the IPv4 Routing Table: 28 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: 1104 Number of instances of unregistered ASNs: 1104 Number of 32-bit ASNs allocated by the RIRs: 41639 Number of 32-bit ASNs visible in the Routing Table: 34389 Prefixes from 32-bit ASNs in the Routing Table: 169199 Number of bogon 32-bit ASNs visible in the Routing Table: 7 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 767 Number of addresses announced to Internet: 3060371456 Equivalent to 182 /8s, 105 /16s and 144 /24s Percentage of available address space announced: 82.7 Percentage of allocated address space announced: 82.7 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: 305908 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 235998 Total APNIC prefixes after maximum aggregation: 68364 APNIC Deaggregation factor: 3.45 Prefixes being announced from the APNIC address blocks: 230359 Unique aggregates announced from the APNIC address blocks: 97548 APNIC Region origin ASes present in the Internet Routing Table: 13302 APNIC Prefixes per ASN: 17.32 APNIC Region origin ASes announcing only one prefix: 3901 APNIC Region transit ASes present in the Internet Routing Table: 1787 Average APNIC Region AS path length visible: 4.3 Max APNIC Region AS path length visible: 25 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8660 Number of APNIC addresses announced to Internet: 772910848 Equivalent to 46 /8s, 17 /16s and 175 /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: 267610 Total ARIN prefixes after maximum aggregation: 121396 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 270022 Unique aggregates announced from the ARIN address blocks: 130647 ARIN Region origin ASes present in the Internet Routing Table: 19040 ARIN Prefixes per ASN: 14.18 ARIN Region origin ASes announcing only one prefix: 6984 ARIN Region transit ASes present in the Internet Routing Table: 1888 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: 4767 Number of ARIN addresses announced to Internet: 1284882176 Equivalent to 76 /8s, 149 /16s and 191 /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: 258877 Total RIPE prefixes after maximum aggregation: 121862 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 254736 Unique aggregates announced from the RIPE address blocks: 157439 RIPE Region origin ASes present in the Internet Routing Table: 28266 RIPE Prefixes per ASN: 9.01 RIPE Region origin ASes announcing only one prefix: 12030 RIPE Region transit ASes present in the Internet Routing Table: 3986 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: 11106 Number of RIPE addresses announced to Internet: 717785088 Equivalent to 42 /8s, 200 /16s and 136 /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: 117398 Total LACNIC prefixes after maximum aggregation: 28121 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 116719 Unique aggregates announced from the LACNIC address blocks: 49041 LACNIC Region origin ASes present in the Internet Routing Table: 10972 LACNIC Prefixes per ASN: 10.64 LACNIC Region origin ASes announcing only one prefix: 2660 LACNIC Region transit ASes present in the Internet Routing Table: 2289 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 52 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8777 Number of LACNIC addresses announced to Internet: 176552192 Equivalent to 10 /8s, 133 /16s and 249 /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: 29433 Total AfriNIC prefixes after maximum aggregation: 5794 AfriNIC Deaggregation factor: 5.08 Prefixes being announced from the AfriNIC address blocks: 37817 Unique aggregates announced from the AfriNIC address blocks: 12287 AfriNIC Region origin ASes present in the Internet Routing Table: 1731 AfriNIC Prefixes per ASN: 21.85 AfriNIC Region origin ASes announcing only one prefix: 605 AfriNIC Region transit ASes present in the Internet Routing Table: 332 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: 1079 Number of AfriNIC addresses announced to Internet: 107755776 Equivalent to 6 /8s, 108 /16s and 57 /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 9454 8704 36 CHINAMOBILE-CN China Mobile Communicati 7545 5730 786 688 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3682 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3559 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3387 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2926 491 237 BBIL-AP BHARTI Airtel Ltd., IN 24560 2370 836 445 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2305 11250 586 KIXS-AS-KR Korea Telecom, KR 4755 2171 439 213 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 10775 2909 AMAZON-02, US 11492 4542 301 607 CABLEONE, US 7155 3967 279 48 VIASAT-SP-BACKBONE, US 22773 3598 3057 279 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3514 1320 64 SHAW, CA 16625 3162 1590 2340 AKAMAI-AS, US 749 3052 50540 2319 DNIC-AS-00749, US 396982 2630 3590 362 GOOGLE-CLOUD-PLATFORM, US 7018 2579 24119 1575 ATT-INTERNET4, US 30036 2488 359 526 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 7223 1705 149 UNI2-AS, ES 39891 4833 286 59 ALJAWWALSTC-AS, SA 20940 4063 3399 163 AKAMAI-ASN1, NL 8551 3886 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2896 2292 911 ROSTELECOM-AS, RU 9009 2650 249 1377 M247, RO 34984 2271 359 611 TELLCOM-AS, TR 6849 2017 307 18 UKRTELNET, UA 58224 1850 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 11229 3343 584 Uninet S.A. de C.V., MX 10620 3500 507 851 Telmex Colombia S.A., CO 13999 2312 371 611 Mega Cable, S.A. de C.V., MX 11830 2264 369 64 Instituto Costarricense de Electricidad 28573 1331 2325 235 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 1130 370 22 Telefonica del Peru S.A.A., PE 11664 1101 180 448 Techtel LMDS Comunicaciones Interactiva 26615 1027 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 24835 1541 533 30 RAYA-AS, EG 24863 1509 393 19 LINKdotNET-AS, EG 36992 1338 1518 275 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1022 67 48 ORANGE-COTE-IVOIRE, CI 36935 872 520 42 Vodafone-, EG 6713 550 1861 34 IAM-AS, MA 15399 535 54 47 WANANCHI-, KE 37342 493 32 1 MOVITEL, MZ 24757 488 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 11229 3343 584 Uninet S.A. de C.V., MX 9808 9454 8704 36 CHINAMOBILE-CN China Mobile Communicati 16509 8231 10775 2909 AMAZON-02, US 12479 7223 1705 149 UNI2-AS, ES 7545 5730 786 688 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 286 59 ALJAWWALSTC-AS, SA 11492 4542 301 607 CABLEONE, US 20940 4063 3399 163 AKAMAI-ASN1, NL 7155 3967 279 48 VIASAT-SP-BACKBONE, US 8551 3886 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 9454 9418 CHINAMOBILE-CN China Mobile Communications Grou 12479 7223 7074 UNI2-AS, ES 16509 8231 5322 AMAZON-02, US 7545 5730 5042 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4774 ALJAWWALSTC-AS, SA 11492 4542 3935 CABLEONE, US 7155 3967 3919 VIASAT-SP-BACKBONE, US 20940 4063 3900 AKAMAI-ASN1, NL 8551 3886 3849 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7552 3682 3661 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 3507 UNALLOCATED 5.105.166.0/24 213035 AS-SERVERION Serverion B.V., 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 12169 UNALLOCATED 8.15.207.0/24 3356 LEVEL3, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US 18798 UNALLOCATED 8.40.106.0/24 6461 ZAYO-6461, 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 23.136.112.0/24 Origin: 54835 UNASSIGNED 23.136.112.0/24 Transit: 21559 OSNET, PR 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 /9:13 /10:38 /11:103 /12:299 /13:575 /14:1196 /15:2066 /16:13406 /17:8158 /18:13697 /19:24805 /20:43056 /21:50884 /22:108762 /23:97196 /24:546141 /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 6283 7223 UNI2-AS, ES 8151 5183 11229 Uninet S.A. de C.V., MX 39891 3632 4833 ALJAWWALSTC-AS, SA 11492 3450 4542 CABLEONE, US 8551 3358 3886 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3323 3514 SHAW, CA 7155 3039 3967 VIASAT-SP-BACKBONE, US 22773 2670 3598 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2145 2488 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2054 3500 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) ---------------------------------------------- 1:1671 2:1233 3:173 4:5 5:4487 6:122 7:6 8:1511 9:1 11:172 12:1549 13:389 14:2302 15:299 16:185 17:373 18:414 20:248 21:4 22:188 23:6178 24:2567 25:6 27:2489 29:19 31:2527 32:86 34:10 35:104 36:1940 37:4612 38:4459 39:804 40:151 41:3976 42:974 43:2312 44:305 45:16489 46:4222 47:356 49:1735 50:1826 51:571 52:1595 54:389 55:854 56:8 57:91 58:1685 59:1072 60:972 61:2466 62:2638 63:1923 64:5679 65:2315 66:4915 67:3009 68:1375 69:4164 70:1250 71:671 72:2970 74:2601 75:1464 76:606 77:2423 78:1849 79:3161 80:2096 81:1735 82:1484 83:1267 84:1508 85:2993 86:755 87:1987 88:1235 89:3609 90:611 91:7667 92:2059 93:2612 94:3587 95:3996 96:1328 97:336 98:1157 99:745 100:73 101:1301 102:2692 103:31214 104:4607 105:483 106:895 107:2510 108:1017 109:4412 110:2079 111:3188 112:2052 113:1496 114:1638 115:2008 116:1907 117:2558 118:2275 119:2011 120:1767 121:1047 122:2605 123:2102 124:1572 125:2477 128:1254 129:1043 130:992 131:1973 132:836 133:422 134:1900 135:304 136:871 137:942 138:2552 139:1553 140:1226 141:1460 142:1422 143:1490 144:1161 145:347 146:1920 147:1565 148:2313 149:2005 150:870 151:1154 152:1958 153:488 154:4384 155:1429 156:1789 157:1304 158:1049 159:2281 160:2528 161:1514 162:3513 163:1504 164:1595 165:1729 166:1005 167:1737 168:3851 169:939 170:4613 171:870 172:3535 173:2922 174:1068 175:1154 176:3657 177:4569 178:3577 179:2138 180:2439 181:3408 182:3334 183:1910 184:2352 185:20180 186:4751 187:3937 188:4084 189:3519 190:9118 191:1444 192:10897 193:8845 194:7294 195:5137 196:3173 197:2385 198:5889 199:6079 200:7873 201:5853 202:10310 203:10196 204:4619 205:3542 206:4069 207:3392 208:4075 209:4856 210:4168 211:2397 212:4110 213:3559 214:1082 215:59 216:6631 217:2691 218:1265 219:406 220:1762 221:970 222:708 223:2150 End of report