[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Sun Apr 27 20:17:00 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Sun 27 Apr, 2025
IPv4 BGP Table (R&E) as seen at KREONet2.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/KREONet2/
Analysis Summary
----------------
BGP routing table entries examined: 261472
Prefixes after maximum aggregation (per Origin AS): 114564
Deaggregation factor: 2.28
Unique aggregates announced (without unneeded subnets): 135403
Number of IPv4 prefixes with a valid ROA: 116639
Number of IPv4 prefixes with an invalid ROA: 18
Number of IPv4 prefixes with no ROA: 144815
Total ASes present in the Internet Routing Table: 19736
Prefixes per ASN: 13.25
Origin-only ASes present in the Internet Routing Table: 17046
Origin ASes announcing only one prefix: 7730
Transit ASes present in the Internet Routing Table: 2690
Transit-only ASes present in the Internet Routing Table: 720
Paths with bogon ASNs present in the IPv4 Routing Table: 6
Average AS path length visible in the Internet Routing Table: 5.8
Max AS path length visible: 38
Max AS path prepend of ASN ( 37447) 34
Prefixes from unregistered ASNs in the Routing Table: 318
Number of instances of unregistered ASNs: 319
Number of 32-bit ASNs allocated by the RIRs: 46291
Number of 32-bit ASNs visible in the Routing Table: 7443
Prefixes from 32-bit ASNs in the Routing Table: 27718
Number of bogon 32-bit ASNs visible in the Routing Table: 4
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 134
Number of addresses announced to Internet: 1561041629
Equivalent to 93 /8s, 11 /16s and 154 /24s
Percentage of available address space announced: 42.2
Percentage of allocated address space announced: 42.2
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: 82605
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32024
Total APNIC prefixes after maximum aggregation: 7396
APNIC Deaggregation factor: 4.33
Prefixes being announced from the APNIC address blocks: 30535
Unique aggregates announced from the APNIC address blocks: 7790
APNIC Region origin ASes present in the Internet Routing Table: 1201
APNIC Prefixes per ASN: 25.42
APNIC Region origin ASes announcing only one prefix: 474
APNIC Region transit ASes present in the Internet Routing Table: 206
Average APNIC Region AS path length visible: 7.3
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 550
Number of APNIC addresses announced to Internet: 175404908
Equivalent to 10 /8s, 116 /16s and 119 /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: 125507
Total ARIN prefixes after maximum aggregation: 64692
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 122765
Unique aggregates announced from the ARIN address blocks: 66069
ARIN Region origin ASes present in the Internet Routing Table: 9334
ARIN Prefixes per ASN: 13.15
ARIN Region origin ASes announcing only one prefix: 3890
ARIN Region transit ASes present in the Internet Routing Table: 867
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 26
Number of ARIN region 32-bit ASNs visible in the Routing Table: 2174
Number of ARIN addresses announced to Internet: 965056481
Equivalent to 57 /8s, 133 /16s and 151 /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: 49046
Total RIPE prefixes after maximum aggregation: 26585
RIPE Deaggregation factor: 1.84
Prefixes being announced from the RIPE address blocks: 50525
Unique aggregates announced from the RIPE address blocks: 36897
RIPE Region origin ASes present in the Internet Routing Table: 4600
RIPE Prefixes per ASN: 10.98
RIPE Region origin ASes announcing only one prefix: 1935
RIPE Region transit ASes present in the Internet Routing Table: 693
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 27
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1894
Number of RIPE addresses announced to Internet: 281217360
Equivalent to 16 /8s, 195 /16s and 9 /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: 44482
Total LACNIC prefixes after maximum aggregation: 13468
LACNIC Deaggregation factor: 3.30
Prefixes being announced from the LACNIC address blocks: 43605
Unique aggregates announced from the LACNIC address blocks: 20133
LACNIC Region origin ASes present in the Internet Routing Table: 3484
LACNIC Prefixes per ASN: 12.52
LACNIC Region origin ASes announcing only one prefix: 1318
LACNIC Region transit ASes present in the Internet Routing Table: 709
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 23
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 2675
Number of LACNIC addresses announced to Internet: 96665152
Equivalent to 5 /8s, 194 /16s and 254 /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: 10095
Total AfriNIC prefixes after maximum aggregation: 2208
AfriNIC Deaggregation factor: 4.57
Prefixes being announced from the AfriNIC address blocks: 13908
Unique aggregates announced from the AfriNIC address blocks: 4398
AfriNIC Region origin ASes present in the Internet Routing Table: 271
AfriNIC Prefixes per ASN: 51.32
AfriNIC Region origin ASes announcing only one prefix: 113
AfriNIC Region transit ASes present in the Internet Routing Table: 75
Average AfriNIC Region AS path length visible: 6.5
Max AfriNIC Region AS path length visible: 38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 150
Number of AfriNIC addresses announced to Internet: 42647040
Equivalent to 2 /8s, 138 /16s and 190 /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 10270 8754 92 CHINAMOBILE-CN China Mobile Communication
56046 1622 811 186 CMNET-JIANGSU-AP China Mobile communicati
56041 1569 714 78 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1484 192 53 CMNET-HUNAN-AP China Mobile communication
24547 852 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic
24444 771 500 72 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co
17561 752 48 347 LCS-AS-AP LARUS Limited, HK
2907 639 2170 465 SINET-AS Research Organization of Informa
45102 549 851 141 ALIBABA-CN-NET Alibaba US Technology Co.,
24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 13235 39703 4088 AMAZON-02, US
22773 3389 3017 176 ASN-CXA-ALL-CCI-22773-RDC, US
749 3255 54879 2506 DNIC-AS-00749, US
4155 2665 203 1631 USDA-1, US
36352 2472 204 1101 AS-COLOCROSSING, US
367 2440 2888 1183 DNIC-ASBLK-00306-00371, US
7018 2117 22900 1554 ATT-INTERNET4, US
11776 1894 258 216 ATLANTICBB-JOHNSTOWN, US
6167 1846 3687 467 CELLCO-PART, US
209 1665 4890 275 CENTURYLINK-US-LEGACY-QWEST, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
39891 1936 130 50 ALJAWWALSTC-AS, SA
20940 1239 96 1013 AKAMAI-ASN1, NL
3257 926 2075 745 GTT-BACKBONE GTT, US
3215 891 4810 292 France Telecom - Orange, FR
34984 870 86 482 TELLCOM-AS, TR
25019 855 1303 130 SAUDINETSTC-AS, SA
8452 656 1842 17 TE-AS TE-AS, EG
8376 577 53 23 Jordan Data Communications, JO
51167 568 113 251 CONTABO, DE
212238 566 41 498 CDNEXT, GB
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 7394 2024 1013 UNINET, MX
11830 1989 369 64 Instituto Costarricense de Electricidad y
10620 1929 286 1300 Telmex Colombia S.A., CO
3816 1332 784 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1189 371 21 Telefonica del Peru S.A.A., PE
26615 989 2503 52 TIM SA, BR
18881 883 1127 31 TELEFONICA BRASIL S.A, BR
27651 648 94 35 ENTEL CHILE S.A., CL
28006 645 77 297 CORPORACION NACIONAL DE TELECOMUNICACIONE
26599 546 2883 72 TELEFONICA BRASIL S.A, BR
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 1491 389 16 LINKdotNET-AS, EG
20011 980 185 285 INTERNET-SOLUTIONS, ZA
29571 969 100 75 ORANGE-COTE-IVOIRE, CI
24835 819 484 36 RAYA-AS, EG
36992 604 1228 124 ETISALAT-MISR, EG
36935 578 518 43 Vodafone-, EG
36914 551 82 3 KENET-AS, KE
37069 465 1046 15 MOBINIL, EG
36903 410 192 301 MT-MPLS, MA
2018 373 318 69 TENET-1, ZA
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 13235 39703 4088 AMAZON-02, US
9808 10270 8754 92 CHINAMOBILE-CN China Mobile Communication
8151 7394 2024 1013 UNINET, MX
22773 3389 3017 176 ASN-CXA-ALL-CCI-22773-RDC, US
749 3255 54879 2506 DNIC-AS-00749, US
4155 2665 203 1631 USDA-1, US
36352 2472 204 1101 AS-COLOCROSSING, US
367 2440 2888 1183 DNIC-ASBLK-00306-00371, US
7018 2117 22900 1554 ATT-INTERNET4, US
11830 1989 369 64 Instituto Costarricense de Electricidad y
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 10270 10178 CHINAMOBILE-CN China Mobile Communications Grou
8151 7394 6381 UNINET, MX
22773 3389 3213 ASN-CXA-ALL-CCI-22773-RDC, US
11830 1989 1925 Instituto Costarricense de Electricidad y Telec
39891 1936 1886 ALJAWWALSTC-AS, SA
11776 1894 1678 ATLANTICBB-JOHNSTOWN, US
56041 1569 1491 CMNET-ZHEJIANG-AP China Mobile communications c
24863 1491 1475 LINKdotNET-AS, EG
56046 1622 1436 CMNET-JIANGSU-AP China Mobile communications co
56047 1484 1431 CMNET-HUNAN-AP China Mobile communications corp
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US
46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US
46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US
53966 UNALLOCATED 8.39.98.0/24 3356 LEVEL3, US
1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US
22542 UNALLOCATED 8.42.195.0/24 3356 LEVEL3, US
395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US
46639 UNALLOCATED 8.42.219.0/24 3356 LEVEL3, US
399953 UNALLOCATED 12.9.122.0/24 7018 ATT-INTERNET4, US
13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/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/KREONet2/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
23.152.48.0/24 Origin: 46167 RESERVED, ZZ
23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US
23.158.216.0/24 Origin: 204535 RESERVED, ZZ
23.158.216.0/24 Transit: 22427 GNET-AS, US
23.166.120.0/24 Origin: 59993 UILLLC-20230328, US
23.166.120.0/24 Transit: 30456 COSMIC-GLOBAL, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/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 /8:13 /9:10 /10:29 /11:42 /12:153
/13:215 /14:579 /15:1095 /16:7669 /17:3445 /18:4217
/19:7698 /20:12313 /21:15289 /22:27549 /23:27383 /24:153558
/25:60 /26:76 /27:35 /28:13 /29:16 /30:10
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 3904 7394 UNINET, MX
22773 2532 3389 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2357 13235 AMAZON-02, US
11830 1690 1989 Instituto Costarricense de Electricidad y Telecom., CR
10620 1088 1929 Telmex Colombia S.A., CO
39891 1081 1936 ALJAWWALSTC-AS, SA
36352 997 2472 AS-COLOCROSSING, US
209 964 1665 CENTURYLINK-US-LEGACY-QWEST, US
19901 950 1218 BRSPD-PUBLIC, US
11776 883 1894 ATLANTICBB-JOHNSTOWN, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:78 2:469 3:620 4:5 5:831 6:156
7:5 8:636 11:171 12:994 13:294 14:109
15:301 16:244 17:5 18:888 20:174 21:4
22:188 23:2628 24:641 27:21 29:19 31:473
32:9 34:10 35:136 36:1318 37:993 38:1925
39:551 40:62 41:921 42:226 43:190 44:38
45:3555 46:958 47:96 49:45 50:355 51:383
52:1382 54:294 55:1071 56:11 57:16 58:18
59:42 60:16 61:72 62:551 63:766 64:1924
65:1101 66:1557 67:953 68:400 69:1115 70:422
71:205 72:756 74:976 75:427 76:248 77:460
78:328 79:287 80:294 81:364 82:740 83:243
84:364 85:475 86:232 87:243 88:277 89:833
90:105 91:957 92:589 93:457 94:924 95:685
96:289 97:63 98:469 99:162 100:35 101:19
102:371 103:1215 104:1440 105:128 106:18 107:1489
108:547 109:383 110:37 111:1916 112:450 113:35
114:41 115:13 116:58 117:1032 118:62 119:131
120:1172 121:46 122:65 123:72 124:56 125:25
128:466 129:285 130:695 131:878 132:536 133:212
134:493 135:112 136:582 137:501 138:859 139:441
140:706 141:451 142:1028 143:651 144:423 145:111
146:674 147:519 148:860 149:770 150:380 151:641
152:482 153:130 154:1754 155:801 156:1342 157:380
158:536 159:690 160:831 161:703 162:974 163:356
164:716 165:801 166:763 167:616 168:1126 169:149
170:1604 171:122 172:1371 173:843 174:259 175:51
176:848 177:850 178:512 179:673 180:47 181:1735
182:27 183:866 184:482 185:3386 186:2038 187:1359
188:774 189:1709 190:4208 191:414 192:5177 193:1816
194:1221 195:935 196:807 197:1545 198:2700 199:4875
200:3558 201:3235 202:990 203:727 204:2153 205:1928
206:1540 207:1503 208:1401 209:1928 210:309 211:430
212:942 213:869 214:985 215:42 216:2512 217:424
218:515 219:19 220:26 221:305 222:32 223:763
End of report
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