This is an automated weekly mailing describing the state of the IPv4 Research & Education Routing Table received by NSRC's collector from Guam'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 21:25 GMT Sat 20 Sep, 2025 IPv4 BGP Table (Global) as seen at Guam. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Guam/ Analysis Summary ---------------- BGP routing table entries examined: 1033049 Prefixes after maximum aggregation (per Origin AS): 390317 Deaggregation factor: 2.65 Unique aggregates announced (without unneeded subnets): 495361 Number of IPv4 prefixes with a valid ROA: 588411 Number of IPv4 prefixes with an invalid ROA: 18 Number of IPv4 prefixes with no ROA: 444620 Total ASes present in the Internet Routing Table: 77489 Prefixes per ASN: 13.33 Origin-only ASes present in the Internet Routing Table: 66326 Origin ASes announcing only one prefix: 26844 Transit ASes present in the Internet Routing Table: 11163 Transit-only ASes present in the Internet Routing Table: 568 Paths with bogon ASNs present in the IPv4 Routing Table: 54 Average AS path length visible in the Internet Routing Table: 5.4 Max AS path length visible: 52 Max AS path prepend of ASN ( 59958) 48 Prefixes from unregistered ASNs in the Routing Table: 1031 Number of instances of unregistered ASNs: 1060 Number of 32-bit ASNs allocated by the RIRs: 47507 Number of 32-bit ASNs visible in the Routing Table: 39042 Prefixes from 32-bit ASNs in the Routing Table: 217456 Number of bogon 32-bit ASNs visible in the Routing Table: 70 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 297 Number of addresses announced to Internet: 3117441793 Equivalent to 185 /8s, 208 /16s and 99 /24s Percentage of available address space announced: 84.2 Percentage of allocated address space announced: 84.2 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: 335691 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 282462 Total APNIC prefixes after maximum aggregation: 80216 APNIC Deaggregation factor: 3.52 Prefixes being announced from the APNIC address blocks: 272809 Unique aggregates announced from the APNIC address blocks: 106113 APNIC Region origin ASes present in the Internet Routing Table: 14908 APNIC Prefixes per ASN: 18.30 APNIC Region origin ASes announcing only one prefix: 4497 APNIC Region transit ASes present in the Internet Routing Table: 2012 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 42 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10395 Number of APNIC addresses announced to Internet: 756029760 Equivalent to 45 /8s, 16 /16s and 25 /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: 297677 Total ARIN prefixes after maximum aggregation: 134047 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 298772 Unique aggregates announced from the ARIN address blocks: 142801 ARIN Region origin ASes present in the Internet Routing Table: 19318 ARIN Prefixes per ASN: 15.47 ARIN Region origin ASes announcing only one prefix: 7071 ARIN Region transit ASes present in the Internet Routing Table: 1996 Average ARIN Region AS path length visible: 4.8 Max ARIN Region AS path length visible: 41 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5331 Number of ARIN addresses announced to Internet: 1353532928 Equivalent to 80 /8s, 173 /16s and 70 /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: 283984 Total RIPE prefixes after maximum aggregation: 138220 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 283356 Unique aggregates announced from the RIPE address blocks: 180153 RIPE Region origin ASes present in the Internet Routing Table: 29093 RIPE Prefixes per ASN: 9.74 RIPE Region origin ASes announcing only one prefix: 12090 RIPE Region transit ASes present in the Internet Routing Table: 4038 Average RIPE Region AS path length visible: 5.5 Max RIPE Region AS path length visible: 52 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12727 Number of RIPE addresses announced to Internet: 732668289 Equivalent to 43 /8s, 171 /16s and 161 /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: 131950 Total LACNIC prefixes after maximum aggregation: 30239 LACNIC Deaggregation factor: 4.36 Prefixes being announced from the LACNIC address blocks: 128030 Unique aggregates announced from the LACNIC address blocks: 49466 LACNIC Region origin ASes present in the Internet Routing Table: 11300 LACNIC Prefixes per ASN: 11.33 LACNIC Region origin ASes announcing only one prefix: 2500 LACNIC Region transit ASes present in the Internet Routing Table: 2522 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 37 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9263 Number of LACNIC addresses announced to Internet: 170717760 Equivalent to 10 /8s, 44 /16s and 242 /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: 35945 Total AfriNIC prefixes after maximum aggregation: 6906 AfriNIC Deaggregation factor: 5.20 Prefixes being announced from the AfriNIC address blocks: 49785 Unique aggregates announced from the AfriNIC address blocks: 16557 AfriNIC Region origin ASes present in the Internet Routing Table: 1961 AfriNIC Prefixes per ASN: 25.39 AfriNIC Region origin ASes announcing only one prefix: 686 AfriNIC Region transit ASes present in the Internet Routing Table: 384 Average AfriNIC Region AS path length visible: 6.1 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1326 Number of AfriNIC addresses announced to Internet: 104304384 Equivalent to 6 /8s, 55 /16s and 143 /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 13647 8889 172 CHINAMOBILE-CN China Mobile Communication 7545 6151 836 593 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4878 4192 75 ERX-CERNET-BKB China Education and Resear 9498 4471 536 314 BBIL-AP BHARTI Airtel Ltd., IN 18403 4446 347 26 FPT-AS-AP FPT Telecom Company, VN 45899 4397 1874 55 VNPT-AS-VN VNPT Corp, VN 7552 3969 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3715 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3218 848 229 CMNET-JIANGSU-AP China Mobile communicati 24560 2920 863 504 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14426 40907 5390 AMAZON-02, US 174 5056 8774 825 COGENT-174, US 11492 4737 320 807 CABLEONE, US 22773 3944 3044 308 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3873 287 89 VIASAT-SP-BACKBONE, US 6327 3676 1320 81 SHAW, CA 396982 3262 4823 457 GOOGLE-CLOUD-PLATFORM, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 3032 235 1725 USDA-1, US 16625 2940 1248 2180 AKAMAI-AS, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7459 1711 149 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 3943 3396 140 AKAMAI-ASN1, NL 9009 3916 368 2220 M247, RO 12389 3121 2315 867 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2419 172 1752 CDNEXT, GB 34984 2415 363 574 TELLCOM-AS, TR 5384 2394 585 29 EMIRATES-INTERNET Emirates Internet, AE 203020 1960 230 916 HOSTROYALE, IN 8452 1634 1852 14 TE-AS TE-AS, EG Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12346 3276 574 UNINET, MX 10620 3493 473 1047 Telmex Colombia S.A., CO 13999 2542 511 346 Mega Cable, S.A. de C.V., MX 11830 1989 369 64 Instituto Costarricense de Electricidad y 28573 1580 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1353 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1221 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1181 371 23 Telefonica del Peru S.A.A., PE 22884 1063 68 361 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1011 2487 55 TIM SA, BR Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1821 652 28 RAYA-AS, EG 36992 1507 1498 383 ETISALAT-MISR, EG 36903 1250 554 97 MT-MPLS, MA 24863 1247 389 20 LINKdotNET-AS, EG 29571 1185 102 51 ORANGE-COTE-IVOIRE, CI 37069 1085 1096 13 MOBINIL, EG 36935 1029 522 45 Vodafone-, EG 20011 634 172 254 NTT-DATA-Inc, ZA 36914 571 82 3 KENET-AS, KE 3741 564 725 319 NTT-DATA-Inc, ZA Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14426 40907 5390 AMAZON-02, US 9808 13647 8889 172 CHINAMOBILE-CN China Mobile Communication 8151 12346 3276 574 UNINET, MX 12479 7459 1711 149 UNI2-AS, ES 7545 6151 836 593 TPG-INTERNET-AP TPG Telecom Limited, AU 174 5056 8774 825 COGENT-174, US 4538 4878 4192 75 ERX-CERNET-BKB China Education and Resear 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4737 320 807 CABLEONE, US 9498 4471 536 314 BBIL-AP BHARTI Airtel Ltd., IN Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 13647 13475 CHINAMOBILE-CN China Mobile Communications Grou 8151 12346 11772 UNINET, MX 12479 7459 7310 UNI2-AS, ES 7545 6151 5558 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4878 4803 ERX-CERNET-BKB China Education and Research Net 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4446 4420 FPT-AS-AP FPT Telecom Company, VN 45899 4397 4342 VNPT-AS-VN VNPT Corp, VN 174 5056 4231 COGENT-174, US 9498 4471 4157 BBIL-AP BHARTI Airtel Ltd., IN Complete listing at https://bgp.nsrc.org/REN/Guam/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 396146 UNALLOCATED 8.21.227.0/24 3356 LEVEL3, US 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, 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 3356 LEVEL3, US 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, US Complete listing at https://bgp.nsrc.org/REN/Guam/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/Guam/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 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, US 23.147.240.0/24 Origin: 32302 RESERVED, ZZ 23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE 23.159.56.0/24 Origin: 174 COGENT-174, US 23.159.56.0/24 Transit: 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/Guam/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 /10:41 /11:93 /12:299 /13:582 /14:1215 /15:2172 /16:13911 /17:8449 /18:14257 /19:25701 /20:46326 /21:53638 /22:114939 /23:108781 /24:641856 /25:145 /26:109 /27:114 /28:21 /29:63 /30:11 /31:0 /32:296 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 6563 12346 UNINET, MX 12479 6427 7459 UNI2-AS, ES 11492 3552 4737 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3465 3676 SHAW, CA 7155 2831 3873 VIASAT-SP-BACKBONE, US 22773 2507 3944 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2444 14426 AMAZON-02, US 30036 2295 2636 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2211 3493 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Guam/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2486 2:1609 3:942 4:12 5:4937 6:165 7:6 8:1573 9:6 11:172 12:1246 13:569 14:2691 15:399 16:303 17:390 18:905 20:588 21:4 22:188 23:7888 24:2716 25:2 27:2864 29:19 31:3484 32:36 33:1 34:85 35:271 36:4396 37:4612 38:10543 39:1085 40:283 41:4446 42:1992 43:2921 44:385 45:19888 46:5238 47:388 49:2173 50:2047 51:593 52:1611 54:373 55:1091 56:11 57:291 58:2386 59:1429 60:1217 61:3164 62:3084 63:1777 64:5660 65:2126 66:4927 67:3107 68:1086 69:4005 70:1033 71:640 72:2893 74:2846 75:1507 76:602 77:2778 78:1903 79:1775 80:2271 81:2107 82:3340 83:1502 84:1979 85:3492 86:1194 87:2414 88:1333 89:4648 90:810 91:8472 92:2857 93:2990 94:4324 95:4575 96:1507 97:312 98:952 99:759 100:71 101:1495 102:4313 103:33284 104:5319 105:1040 106:899 107:2657 108:1227 109:4263 110:2288 111:3810 112:2648 113:1911 114:2019 115:2406 116:2171 117:2911 118:3105 119:2090 120:2322 121:1441 122:2940 123:2594 124:1822 125:2932 126:91 128:1628 129:981 130:1312 131:2243 132:793 133:461 134:1607 135:363 136:1491 137:1277 138:3019 139:1689 140:1661 141:1548 142:1915 143:2088 144:1276 145:623 146:2196 147:2121 148:2735 149:2976 150:1283 151:2530 152:2334 153:641 154:7759 155:2048 156:3489 157:2068 158:1420 159:2573 160:3598 161:1975 162:3945 163:2329 164:1954 165:2577 166:1560 167:2103 168:3966 169:787 170:5562 171:1024 172:4239 173:3409 174:902 175:1376 176:3858 177:5515 178:4288 179:2604 180:2722 181:4302 182:3754 183:2596 184:2095 185:21783 186:5722 187:5038 188:4387 189:4582 190:9868 191:1712 192:11456 193:9493 194:7972 195:5767 196:3333 197:3255 198:6146 199:8708 200:8395 201:6511 202:11071 203:10939 204:4547 205:3639 206:4606 207:3569 208:4288 209:5295 210:5157 211:2900 212:4752 213:3873 214:1035 215:52 216:6909 217:3472 218:1571 219:616 220:2162 221:1267 222:1005 223:3039 End of report