This is an automated weekly mailing describing the state of the IPv4 Research & Education Routing Table received by NSRC's collector from RENU's network. Daily listings are sent to ren-bgp-stats-all@lists.nsrc.org. For historical data, please see https://bgp.nsrc.org. If you have any comments please contact Philip Smith . IPv4 R&E Routing Table Report 18:35 GMT Sat 15 Apr, 2023 IPv4 BGP Table (Global) as seen at RENU. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/RENU/ Analysis Summary ---------------- BGP routing table entries examined: 934651 Prefixes after maximum aggregation (per Origin AS): 347854 Deaggregation factor: 2.69 Unique aggregates announced (without unneeded subnets): 380143 Number of IPv4 prefixes with a valid ROA: 399771 Number of IPv4 prefixes with an invalid ROA: 1873 Number of IPv4 prefixes with no ROA: 533007 Total ASes present in the Internet Routing Table: 74282 Prefixes per ASN: 12.58 Origin-only ASes present in the Internet Routing Table: 64036 Origin ASes announcing only one prefix: 25684 Transit ASes present in the Internet Routing Table: 10246 Transit-only ASes present in the Internet Routing Table: 420 Paths with bogon ASNs present in the IPv4 Routing Table: 151 Average AS path length visible in the Internet Routing Table: 7.8 Max AS path length visible: 66 Max AS path prepend of ASN ( 37447) 64 Prefixes from unregistered ASNs in the Routing Table: 1403 Number of instances of unregistered ASNs: 1406 Number of 32-bit ASNs allocated by the RIRs: 41662 Number of 32-bit ASNs visible in the Routing Table: 34460 Prefixes from 32-bit ASNs in the Routing Table: 176531 Number of bogon 32-bit ASNs visible in the Routing Table: 25 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 959 Number of addresses announced to Internet: 3137640448 Equivalent to 187 /8s, 4 /16s and 152 /24s Percentage of available address space announced: 84.7 Percentage of allocated address space announced: 84.7 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: 318189 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 238472 Total APNIC prefixes after maximum aggregation: 68404 APNIC Deaggregation factor: 3.49 Prefixes being announced from the APNIC address blocks: 232783 Unique aggregates announced from the APNIC address blocks: 46543 APNIC Region origin ASes present in the Internet Routing Table: 13348 APNIC Prefixes per ASN: 17.44 APNIC Region origin ASes announcing only one prefix: 3900 APNIC Region transit ASes present in the Internet Routing Table: 1788 Average APNIC Region AS path length visible: 7.9 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8674 Number of APNIC addresses announced to Internet: 473883136 Equivalent to 28 /8s, 62 /16s and 226 /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: 271346 Total ARIN prefixes after maximum aggregation: 122298 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 274158 Unique aggregates announced from the ARIN address blocks: 120930 ARIN Region origin ASes present in the Internet Routing Table: 19065 ARIN Prefixes per ASN: 14.38 ARIN Region origin ASes announcing only one prefix: 6958 ARIN Region transit ASes present in the Internet Routing Table: 1876 Average ARIN Region AS path length visible: 7.6 Max ARIN Region AS path length visible: 28 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4776 Number of ARIN addresses announced to Internet: 1706435328 Equivalent to 101 /8s, 182 /16s and 35 /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: 262658 Total RIPE prefixes after maximum aggregation: 122007 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 258280 Unique aggregates announced from the RIPE address blocks: 153399 RIPE Region origin ASes present in the Internet Routing Table: 28319 RIPE Prefixes per ASN: 9.12 RIPE Region origin ASes announcing only one prefix: 12002 RIPE Region transit ASes present in the Internet Routing Table: 3805 Average RIPE Region AS path length visible: 7.7 Max RIPE Region AS path length visible: 34 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11146 Number of RIPE addresses announced to Internet: 700277760 Equivalent to 41 /8s, 189 /16s and 100 /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: 128672 Total LACNIC prefixes after maximum aggregation: 28432 LACNIC Deaggregation factor: 4.53 Prefixes being announced from the LACNIC address blocks: 127835 Unique aggregates announced from the LACNIC address blocks: 49188 LACNIC Region origin ASes present in the Internet Routing Table: 10978 LACNIC Prefixes per ASN: 11.64 LACNIC Region origin ASes announcing only one prefix: 2254 LACNIC Region transit ASes present in the Internet Routing Table: 2281 Average LACNIC Region AS path length visible: 8.3 Max LACNIC Region AS path length visible: 56 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8777 Number of LACNIC addresses announced to Internet: 176683008 Equivalent to 10 /8s, 135 /16s and 248 /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: 32100 Total AfriNIC prefixes after maximum aggregation: 5881 AfriNIC Deaggregation factor: 5.46 Prefixes being announced from the AfriNIC address blocks: 40636 Unique aggregates announced from the AfriNIC address blocks: 9678 AfriNIC Region origin ASes present in the Internet Routing Table: 1745 AfriNIC Prefixes per ASN: 23.29 AfriNIC Region origin ASes announcing only one prefix: 570 AfriNIC Region transit ASes present in the Internet Routing Table: 337 Average AfriNIC Region AS path length visible: 6.6 Max AfriNIC Region AS path length visible: 66 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1087 Number of AfriNIC addresses announced to Internet: 79782144 Equivalent to 4 /8s, 193 /16s and 97 /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 5729 786 689 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3677 1331 21 VIETEL-AS-AP Viettel Group, VN 45899 3474 1872 94 VNPT-AS-VN VNPT Corp, VN 7713 3420 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 9498 2939 131303 144 BBIL-AP BHARTI Airtel Ltd., IN 24560 2375 836 442 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2303 11250 586 KIXS-AS-KR Korea Telecom, KR 4755 2148 439 212 TATACOMM-AS TATA Communications formerl 45090 2148 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute Complete listing at https://bgp.nsrc.org/REN/RENU/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 8231 10777 2904 AMAZON-02, US 11492 4542 301 607 CABLEONE, US 7155 3966 279 46 VIASAT-SP-BACKBONE, US 22773 3600 3057 282 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3514 1320 64 SHAW, CA 16625 3167 1591 2343 AKAMAI-AS, US 749 3055 50540 2322 DNIC-AS-00749, US 396982 2630 3590 362 GOOGLE-CLOUD-PLATFORM, US 7018 2566 24117 1563 ATT-INTERNET4, US 30036 2494 360 500 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/RENU/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7237 1705 149 UNI2-AS, ES 39891 4833 286 59 ALJAWWALSTC-AS, SA 20940 4078 3399 167 AKAMAI-ASN1, NL 8551 3891 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2886 2292 909 ROSTELECOM-AS, RU 9009 2672 250 1394 M247, RO 34984 2270 359 611 TELLCOM-AS, TR 6849 2044 307 18 UKRTELNET, UA 58224 1850 950 543 TCI, IR 13188 1606 100 26 TRIOLAN, UA Complete listing at https://bgp.nsrc.org/REN/RENU/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 11244 3343 584 Uninet S.A. de C.V., MX 10620 3500 507 851 Telmex Colombia S.A., CO 13999 2318 356 615 Mega Cable, S.A. de C.V., MX 11830 2263 369 64 Instituto Costarricense de Electricidad 28573 1332 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 1133 370 22 Telefonica del Peru S.A.A., PE 11664 1101 180 448 Techtel LMDS Comunicaciones Interactiva 26615 1030 2498 45 TIM SA, BR Complete listing at https://bgp.nsrc.org/REN/RENU/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 1578 393 19 LINKdotNET-AS, EG 24835 1541 533 30 RAYA-AS, EG 36992 1338 1518 275 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1023 67 48 ORANGE-COTE-IVOIRE, CI 36935 875 520 42 Vodafone-, EG 37457 839 325 49 Telkom-Internet, ZA 6713 550 1861 34 IAM-AS, MA 15399 530 53 42 WANANCHI-, KE 36914 512 82 3 KENET-AS, KE Complete listing at https://bgp.nsrc.org/REN/RENU/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 11244 3343 584 Uninet S.A. de C.V., MX 9808 9460 8704 36 CHINAMOBILE-CN China Mobile Communicati 16509 8231 10777 2904 AMAZON-02, US 12479 7237 1705 149 UNI2-AS, ES 7545 5729 786 689 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 286 59 ALJAWWALSTC-AS, SA 11492 4542 301 607 CABLEONE, US 20940 4078 3399 167 AKAMAI-ASN1, NL 7155 3966 279 46 VIASAT-SP-BACKBONE, US 8551 3891 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne Complete listing at https://bgp.nsrc.org/REN/RENU/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 7237 7088 UNI2-AS, ES 16509 8231 5327 AMAZON-02, US 7545 5729 5040 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4774 ALJAWWALSTC-AS, SA 11492 4542 3935 CABLEONE, US 7155 3966 3920 VIASAT-SP-BACKBONE, US 20940 4078 3911 AKAMAI-ASN1, NL 8551 3891 3854 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7552 3677 3656 VIETEL-AS-AP Viettel Group, VN Complete listing at https://bgp.nsrc.org/REN/RENU/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 65000 PRIVATE 5.227.24.0/22 8580 SANDY MTS Nizhniy Novgorod, 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 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 Complete listing at https://bgp.nsrc.org/REN/RENU/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/RENU/data-spar 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: 5511 OPENTRANSIT, FR 23.131.186.0/24 Origin: 174 COGENT-174, US 23.131.186.0/24 Transit: 5511 OPENTRANSIT, FR 23.131.187.0/24 Origin: 174 COGENT-174, US 23.131.187.0/24 Transit: 5511 OPENTRANSIT, FR 23.131.188.0/24 Origin: 174 COGENT-174, US 23.131.188.0/24 Transit: 5511 OPENTRANSIT, FR 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/RENU/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:1 /4:0 /5:0 /6:0 /7:0 /8:16 /9:13 /10:38 /11:103 /12:299 /13:576 /14:1206 /15:2094 /16:13547 /17:8297 /18:13996 /19:25205 /20:43943 /21:52126 /22:110499 /23:101259 /24:561433 /25:0 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6297 7237 UNI2-AS, ES 8151 5199 11244 Uninet S.A. de C.V., MX 39891 3632 4833 ALJAWWALSTC-AS, SA 11492 3451 4542 CABLEONE, US 8551 3363 3891 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3323 3514 SHAW, CA 7155 3039 3966 VIASAT-SP-BACKBONE, US 22773 2666 3600 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2151 2494 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2054 3500 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/RENU/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1675 2:1232 3:173 4:7 5:4584 6:127 7:6 8:1554 9:1 11:172 12:1549 13:391 14:2301 15:299 16:183 17:372 18:413 20:260 21:4 22:188 23:6231 24:3008 25:6 27:2569 29:19 31:2556 32:93 34:10 35:106 36:1931 37:4676 38:4529 39:813 40:151 41:4443 42:976 43:2365 44:310 45:17699 46:4305 47:361 49:1747 50:1853 51:572 52:1589 54:390 55:856 56:8 57:121 58:1757 59:1080 60:971 61:2518 62:2735 63:1929 64:5819 65:2335 66:5075 67:3047 68:1387 69:4195 70:1416 71:680 72:3054 74:2637 75:1502 76:606 77:2538 78:1913 79:3175 80:2115 81:1776 82:1485 83:1292 84:1522 85:3020 86:760 87:2080 88:1268 89:3652 90:614 91:7796 92:2065 93:2636 94:3661 95:4027 96:1329 97:336 98:1160 99:745 100:73 101:1303 102:2990 103:31412 104:4661 105:898 106:879 107:2524 108:1033 109:4443 110:2072 111:3180 112:2060 113:1531 114:1653 115:2082 116:1921 117:2567 118:2278 119:2022 120:1768 121:1060 122:2625 123:2153 124:1568 125:2467 128:1336 129:1128 130:1032 131:2173 132:857 133:422 134:1904 135:347 136:875 137:960 138:2847 139:1555 140:1233 141:1465 142:1438 143:1574 144:1151 145:348 146:1951 147:1578 148:2357 149:2094 150:889 151:1154 152:1965 153:571 154:4482 155:1422 156:1812 157:1320 158:1053 159:2286 160:2611 161:1523 162:3547 163:1573 164:1664 165:1776 166:1018 167:1749 168:4132 169:962 170:5010 171:876 172:3572 173:2951 174:1070 175:1184 176:3733 177:6009 178:3599 179:2575 180:2426 181:3462 182:3334 183:1911 184:2354 185:20360 186:5222 187:4606 188:4211 189:3991 190:9241 191:1926 192:10942 193:8887 194:7373 195:5219 196:3287 197:2714 198:5952 199:6130 200:8356 201:6109 202:10518 203:10363 204:4620 205:3542 206:4178 207:3473 208:4099 209:4892 210:4233 211:2409 212:4152 213:3601 214:1084 215:59 216:6686 217:2786 218:1284 219:412 220:1761 221:973 222:709 223:2158 End of report