IPv4 R&E Routing Table Report 23:05 GMT Sat 25 Mar, 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: 909360 Prefixes after maximum aggregation (per Origin AS): 345824 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 447116 Number of IPv4 prefixes with a valid ROA: 381099 Number of IPv4 prefixes with an invalid ROA: 1643 Number of IPv4 prefixes with no ROA: 526618 Total ASes present in the Internet Routing Table: 74084 Prefixes per ASN: 12.27 Origin-only ASes present in the Internet Routing Table: 63633 Origin ASes announcing only one prefix: 26146 Transit ASes present in the Internet Routing Table: 10451 Transit-only ASes present in the Internet Routing Table: 437 Paths with bogon ASNs present in the IPv4 Routing Table: 37 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 66 Max AS path prepend of ASN ( 37447) 64 Prefixes from unregistered ASNs in the Routing Table: 1082 Number of instances of unregistered ASNs: 1086 Number of 32-bit ASNs allocated by the RIRs: 41520 Number of 32-bit ASNs visible in the Routing Table: 34321 Prefixes from 32-bit ASNs in the Routing Table: 168263 Number of bogon 32-bit ASNs visible in the Routing Table: 27 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 498 Number of addresses announced to Internet: 3061665536 Equivalent to 182 /8s, 125 /16s and 79 /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: 305810 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 235972 Total APNIC prefixes after maximum aggregation: 68279 APNIC Deaggregation factor: 3.46 Prefixes being announced from the APNIC address blocks: 230635 Unique aggregates announced from the APNIC address blocks: 97899 APNIC Region origin ASes present in the Internet Routing Table: 13286 APNIC Prefixes per ASN: 17.36 APNIC Region origin ASes announcing only one prefix: 3891 APNIC Region transit ASes present in the Internet Routing Table: 1780 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 39 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8638 Number of APNIC addresses announced to Internet: 773080832 Equivalent to 46 /8s, 20 /16s and 71 /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: 267140 Total ARIN prefixes after maximum aggregation: 121293 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 269375 Unique aggregates announced from the ARIN address blocks: 130307 ARIN Region origin ASes present in the Internet Routing Table: 19012 ARIN Prefixes per ASN: 14.17 ARIN Region origin ASes announcing only one prefix: 6971 ARIN Region transit ASes present in the Internet Routing Table: 1891 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: 4749 Number of ARIN addresses announced to Internet: 1285288448 Equivalent to 76 /8s, 155 /16s and 242 /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: 258325 Total RIPE prefixes after maximum aggregation: 121544 RIPE Deaggregation factor: 2.13 Prefixes being announced from the RIPE address blocks: 254528 Unique aggregates announced from the RIPE address blocks: 157267 RIPE Region origin ASes present in the Internet Routing Table: 28275 RIPE Prefixes per ASN: 9.00 RIPE Region origin ASes announcing only one prefix: 12041 RIPE Region transit ASes present in the Internet Routing Table: 3980 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: 11096 Number of RIPE addresses announced to Internet: 718173184 Equivalent to 42 /8s, 206 /16s and 116 /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: 117369 Total LACNIC prefixes after maximum aggregation: 28129 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 116692 Unique aggregates announced from the LACNIC address blocks: 49030 LACNIC Region origin ASes present in the Internet Routing Table: 10960 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: 2277 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: 8762 Number of LACNIC addresses announced to Internet: 176594944 Equivalent to 10 /8s, 134 /16s and 160 /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: 29472 Total AfriNIC prefixes after maximum aggregation: 5793 AfriNIC Deaggregation factor: 5.09 Prefixes being announced from the AfriNIC address blocks: 37632 Unique aggregates announced from the AfriNIC address blocks: 12214 AfriNIC Region origin ASes present in the Internet Routing Table: 1730 AfriNIC Prefixes per ASN: 21.75 AfriNIC Region origin ASes announcing only one prefix: 600 AfriNIC Region transit ASes present in the Internet Routing Table: 333 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: 1076 Number of AfriNIC addresses announced to Internet: 108145408 Equivalent to 6 /8s, 114 /16s and 43 /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 9501 8883 48 CHINAMOBILE-CN China Mobile Communicati 7545 5754 786 690 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3680 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3543 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3383 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2864 491 237 BBIL-AP BHARTI Airtel Ltd., IN 24560 2361 836 440 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2309 11250 588 KIXS-AS-KR Korea Telecom, KR 4755 2169 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 8145 10769 2880 AMAZON-02, US 11492 4534 300 620 CABLEONE, US 7155 3962 279 45 VIASAT-SP-BACKBONE, US 22773 3617 3062 290 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3514 1320 64 SHAW, CA 16625 3150 1585 2333 AKAMAI-AS, US 749 3037 50520 2304 DNIC-AS-00749, US 396982 2624 3588 357 GOOGLE-CLOUD-PLATFORM, US 7018 2558 24118 1564 ATT-INTERNET4, US 30036 2507 361 483 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 7166 1705 149 UNI2-AS, ES 39891 4833 286 59 ALJAWWALSTC-AS, SA 20940 4043 3399 163 AKAMAI-ASN1, NL 8551 3890 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2903 2292 913 ROSTELECOM-AS, RU 9009 2666 252 1394 M247, RO 34984 2268 359 610 TELLCOM-AS, TR 6849 2135 339 19 UKRTELNET, UA 58224 1850 950 543 TCI, IR 13188 1607 100 27 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 11201 3341 578 Uninet S.A. de C.V., MX 10620 3498 506 850 Telmex Colombia S.A., CO 13999 2296 366 610 Mega Cable, S.A. de C.V., MX 11830 2264 369 64 Instituto Costarricense de Electricidad 28573 1329 2324 245 Claro NXT Telecomunicacoes Ltda, BR 3816 1303 767 159 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6503 1299 339 514 Axtel, S.A.B. de C.V., MX 6147 1130 370 22 Telefonica del Peru S.A.A., PE 11664 1098 180 456 Techtel LMDS Comunicaciones Interactiva 26615 1030 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 1568 393 19 LINKdotNET-AS, EG 24835 1542 533 30 RAYA-AS, EG 36992 1343 1518 275 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1018 67 53 ORANGE-COTE-IVOIRE, CI 36935 880 520 42 Vodafone-, EG 6713 550 1861 34 IAM-AS, MA 15399 529 54 47 WANANCHI-, KE 37342 493 32 1 MOVITEL, MZ 24757 486 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 11201 3341 578 Uninet S.A. de C.V., MX 9808 9501 8883 48 CHINAMOBILE-CN China Mobile Communicati 16509 8145 10769 2880 AMAZON-02, US 12479 7166 1705 149 UNI2-AS, ES 7545 5754 786 690 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 286 59 ALJAWWALSTC-AS, SA 11492 4534 300 620 CABLEONE, US 20940 4043 3399 163 AKAMAI-ASN1, NL 7155 3962 279 45 VIASAT-SP-BACKBONE, US 8551 3890 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 9501 9453 CHINAMOBILE-CN China Mobile Communications Grou 12479 7166 7017 UNI2-AS, ES 16509 8145 5265 AMAZON-02, US 7545 5754 5064 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4774 ALJAWWALSTC-AS, SA 7155 3962 3917 VIASAT-SP-BACKBONE, US 11492 4534 3914 CABLEONE, US 20940 4043 3880 AKAMAI-ASN1, NL 8551 3890 3853 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7552 3680 3659 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., 398083 UNALLOCATED 5.133.124.0/24 399587 UT, 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 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 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 /15:2072 /16:13439 /17:8183 /18:13722 /19:24858 /20:43048 /21:51096 /22:108875 /23:97193 /24:544625 /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 6224 7166 UNI2-AS, ES 8151 5160 11201 Uninet S.A. de C.V., MX 39891 3632 4833 ALJAWWALSTC-AS, SA 11492 3442 4534 CABLEONE, US 8551 3362 3890 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3323 3514 SHAW, CA 7155 3037 3962 VIASAT-SP-BACKBONE, US 22773 2677 3617 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2164 2507 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2052 3498 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 2:1221 3:170 4:5 5:4458 6:121 7:6 8:1516 9:1 11:172 12:1578 13:393 14:2308 15:296 16:135 17:367 18:401 20:248 21:4 22:188 23:6115 24:2597 25:6 27:2499 29:19 31:2526 32:98 34:10 35:104 36:1924 37:4638 38:4389 39:807 40:151 41:3992 42:974 43:2300 44:308 45:16449 46:4223 47:369 49:1734 50:1825 51:570 52:1587 54:389 55:764 56:8 57:89 58:1680 59:1078 60:974 61:2460 62:2642 63:1929 64:5662 65:2314 66:4914 67:3012 68:1369 69:4169 70:1251 71:669 72:2969 74:2591 75:1461 76:605 77:2429 78:1847 79:3159 80:2080 81:1733 82:1498 83:1263 84:1518 85:2999 86:744 87:1961 88:1226 89:3599 90:613 91:7685 92:2034 93:2577 94:3578 95:3972 96:1329 97:336 98:1158 99:746 100:73 101:1298 102:2667 103:31117 104:4588 105:482 106:897 107:2560 108:986 109:4397 110:2077 111:3196 112:2050 113:1492 114:1626 115:2013 116:1901 117:2558 118:2283 119:1967 120:1749 121:1049 122:2588 123:2136 124:1577 125:2446 128:1258 129:1059 130:999 131:1998 132:830 133:421 134:1898 135:300 136:862 137:936 138:2556 139:1516 140:1217 141:1477 142:1425 143:1489 144:1164 145:356 146:1929 147:1563 148:2306 149:1944 150:873 151:1153 152:1953 153:488 154:4247 155:1413 156:1673 157:1280 158:1040 159:2267 160:2537 161:1514 162:3538 163:1499 164:1578 165:1690 166:875 167:1731 168:3858 169:926 170:4591 171:880 172:3526 173:2937 174:1017 175:1155 176:3663 177:4606 178:3638 179:2153 180:2432 181:3425 182:3325 183:1934 184:2347 185:20142 186:4694 187:3938 188:4059 189:3571 190:9119 191:1449 192:10920 193:8838 194:7267 195:5140 196:3181 197:2377 198:5880 199:6085 200:7750 201:5881 202:10334 203:10187 204:4614 205:3519 206:3865 207:3393 208:4068 209:4854 210:4177 211:2402 212:4115 213:3526 214:1079 215:60 216:6602 217:2675 218:1270 219:410 220:1757 221:973 222:726 223:2134 End of report