Routing Table Report 08:00 +10GMT Sun 25 Aug, 2013
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 459649
Prefixes after maximum aggregation: 185834
Deaggregation factor: 2.47
Unique aggregates announced to Internet: 230284
Total ASes present in the Internet Routing Table: 40807
Prefixes per ASN: 11.26
Origin-only ASes present in the Internet Routing Table: 35042
Origin ASes announcing only one prefix: 16260
Transit ASes present in the Internet Routing Table: 5758
Transit-only ASes present in the Internet Routing Table: 156
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN ( 36992) 22
Prefixes from unregistered ASNs in the Routing Table: 280490
Unregistered ASNs in the Routing Table: 22701
Number of 32-bit ASNs allocated by the RIRs: 4976
Number of 32-bit ASNs visible in the Routing Table: 7
Prefixes from 32-bit ASNs in the Routing Table: 11713
Special use prefixes present in the Routing Table: 10
Prefixes being announced from unallocated address space: 332
Number of addresses announced to Internet: 2658232832
Equivalent to 158 /8s, 113 /16s and 106 /24s
Percentage of available address space announced: 71.8
Percentage of allocated address space announced: 71.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 94.9
Total number of prefixes smaller than registry allocations: 160470
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 106225
Total APNIC prefixes after maximum aggregation: 32621
APNIC Deaggregation factor: 3.26
Prefixes being announced from the APNIC address blocks: 108707
Unique aggregates announced from the APNIC address blocks: 46353
APNIC Region origin ASes present in the Internet Routing Table: 4829
APNIC Prefixes per ASN: 22.51
APNIC Region origin ASes announcing only one prefix: 1242
APNIC Region transit ASes present in the Internet Routing Table: 804
Average APNIC Region AS path length visible: 3.8
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 1
Number of APNIC addresses announced to Internet: 725747200
Equivalent to 43 /8s, 66 /16s and 6 /24s
Percentage of available APNIC address space announced: 84.8
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-133119
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: 159925
Total ARIN prefixes after maximum aggregation: 80510
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 160467
Unique aggregates announced from the ARIN address blocks: 75039
ARIN Region origin ASes present in the Internet Routing Table: 15779
ARIN Prefixes per ASN: 10.17
ARIN Region origin ASes announcing only one prefix: 6011
ARIN Region transit ASes present in the Internet Routing Table: 1618
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 2
Number of ARIN addresses announced to Internet: 1070680320
Equivalent to 63 /8s, 209 /16s and 73 /24s
Percentage of available ARIN address space announced: 56.6
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, 393216-394239
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,
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: 119001
Total RIPE prefixes after maximum aggregation: 60712
RIPE Deaggregation factor: 1.96
Prefixes being announced from the RIPE address blocks: 122876
Unique aggregates announced from the RIPE address blocks: 78987
RIPE Region origin ASes present in the Internet Routing Table: 17362
RIPE Prefixes per ASN: 7.08
RIPE Region origin ASes announcing only one prefix: 8243
RIPE Region transit ASes present in the Internet Routing Table: 2780
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 21
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1
Number of RIPE addresses announced to Internet: 657066240
Equivalent to 39 /8s, 42 /16s and 9 /24s
Percentage of available RIPE address space announced: 95.5
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, 196608-199679
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: 50320
Total LACNIC prefixes after maximum aggregation: 9412
LACNIC Deaggregation factor: 5.35
Prefixes being announced from the LACNIC address blocks: 54957
Unique aggregates announced from the LACNIC address blocks: 25667
LACNIC Region origin ASes present in the Internet Routing Table: 1991
LACNIC Prefixes per ASN: 27.60
LACNIC Region origin ASes announcing only one prefix: 567
LACNIC Region transit ASes present in the Internet Routing Table: 355
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 2
Number of LACNIC addresses announced to Internet: 135402752
Equivalent to 8 /8s, 18 /16s and 21 /24s
Percentage of available LACNIC address space announced: 80.7
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 262144-263679 plus 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: 11719
Total AfriNIC prefixes after maximum aggregation: 2537
AfriNIC Deaggregation factor: 4.62
Prefixes being announced from the AfriNIC address blocks: 12309
Unique aggregates announced from the AfriNIC address blocks: 3926
AfriNIC Region origin ASes present in the Internet Routing Table: 654
AfriNIC Prefixes per ASN: 18.82
AfriNIC Region origin ASes announcing only one prefix: 197
AfriNIC Region transit ASes present in the Internet Routing Table: 129
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1
Number of AfriNIC addresses announced to Internet: 46616576
Equivalent to 2 /8s, 199 /16s and 80 /24s
Percentage of available AfriNIC address space announced: 46.3
AfriNIC AS Blocks 36864-37887, 327680-328703 & 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
17974 2662 887 90 >>UNKNOWN<<
4766 2117 11553 622 Korea Telecom
7545 2056 321 112 TPG Telecom Limited
4755 1789 401 191 TATA Communications formerly
9829 1534 1221 45 >>UNKNOWN<<
9583 1224 92 508 Sify Limited
9498 1175 307 66 BHARTI Airtel Ltd.
7552 1128 1080 13 >>UNKNOWN<<
24560 1089 394 160 >>UNKNOWN<<
4808 1067 2022 309 CNCGROUP IP network China169
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 2976 3689 62 BellSouth.net Inc.
18566 2063 382 183 Covad Communications Co.
22773 2040 2933 124 >>UNKNOWN<<
1785 2006 679 125 >>UNKNOWN<<
20115 1675 1645 628 Charter Communications
4323 1633 1121 409 >>UNKNOWN<<
701 1519 11103 797 >>UNKNOWN<<
30036 1345 301 645 >>UNKNOWN<<
7018 1323 11310 838 >>UNKNOWN<<
11492 1223 218 361 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1531 544 16 >>UNKNOWN<<
34984 1298 241 217 >>UNKNOWN<<
31148 979 43 18 >>UNKNOWN<<
20940 972 351 747 >>UNKNOWN<<
2118 962 97 13 >>UNKNOWN<<
6830 899 2371 430 >>UNKNOWN<<
13188 845 99 71 >>UNKNOWN<<
8551 796 370 41 Bezeqint Internet Backbone
12479 687 797 53 >>UNKNOWN<<
9116 553 326 34 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
28573 3175 1684 110 >>UNKNOWN<<
10620 2673 425 219 >>UNKNOWN<<
7303 1732 1157 222 >>UNKNOWN<<
18881 1454 844 20 >>UNKNOWN<<
8151 1264 2765 387 >>UNKNOWN<<
11830 945 364 15 >>UNKNOWN<<
27947 810 95 92 Telconet S.A
6503 784 434 65 Axtel, S.A.B. de C.V.
3816 725 303 85 >>UNKNOWN<<
6147 703 374 25 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
36998 1861 112 5 MOBITEL
24863 874 274 30 >>UNKNOWN<<
6713 543 633 26 Itissalat Al-MAGHRIB
8452 436 956 9 >>UNKNOWN<<
24835 291 80 8 >>UNKNOWN<<
3741 258 921 217 >>UNKNOWN<<
15706 221 32 6 >>UNKNOWN<<
29571 220 17 12 >>UNKNOWN<<
36992 220 501 29 >>UNKNOWN<<
12258 193 28 71 MWEB-12258
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
28573 3175 1684 110 >>UNKNOWN<<
6389 2976 3689 62 BellSouth.net Inc.
10620 2673 425 219 >>UNKNOWN<<
17974 2662 887 90 >>UNKNOWN<<
4766 2117 11553 622 Korea Telecom
18566 2063 382 183 Covad Communications Co.
7545 2056 321 112 TPG Telecom Limited
22773 2040 2933 124 >>UNKNOWN<<
1785 2006 679 125 >>UNKNOWN<<
36998 1861 112 5 MOBITEL
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6389 2976 2914 BellSouth.net Inc.
17974 2662 2572 >>UNKNOWN<<
10620 2673 2454 >>UNKNOWN<<
7545 2056 1944 TPG Telecom Limited
22773 2040 1916 >>UNKNOWN<<
1785 2006 1881 >>UNKNOWN<<
18566 2063 1880 Covad Communications Co.
36998 1861 1856 MOBITEL
4755 1789 1598 TATA Communications formerly
8402 1531 1515 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
18176 UNALLOCATED 1.209.60.0/22 3786 LG DACOM Corporation
18176 UNALLOCATED 1.209.64.0/22 3786 LG DACOM Corporation
9953 UNALLOCATED 1.209.115.0/24 3786 LG DACOM Corporation
9953 UNALLOCATED 1.209.116.0/24 3786 LG DACOM Corporation
55633 UNALLOCATED 1.209.184.0/24 4766 Korea Telecom
9684 UNALLOCATED 1.209.204.0/24 4766 Korea Telecom
38132 UNALLOCATED 1.214.16.0/24 9318 Hanaro Telecom Inc.
38132 UNALLOCATED 1.214.17.0/24 9318 Hanaro Telecom Inc.
38132 UNALLOCATED 1.214.18.0/24 9318 Hanaro Telecom Inc.
38132 UNALLOCATED 1.214.19.0/24 9318 Hanaro Telecom Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
100.64.0.0/10 65333 Internet Assigned Numbers Aut
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.0.0/24 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 0 *
198.18.0.0/15 65333 Internet Assigned Numbers Aut
198.51.100.0/24 65333 Internet Assigned Numbers Aut
203.0.113.0/24 65333 Internet Assigned Numbers Aut
Complete listing at http://thyme.rand.apnic.net/london/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
23.90.128.0/18 27418 >>UNKNOWN<<
23.91.0.0/19 40676 >>UNKNOWN<<
23.91.32.0/19 36315 >>UNKNOWN<<
23.92.16.0/21 8001 >>UNKNOWN<<
23.92.24.0/22 6939 Hurricane Electric, Inc.
23.92.48.0/20 62471 >>UNKNOWN<<
23.92.64.0/24 54540 >>UNKNOWN<<
23.92.65.0/24 54540 >>UNKNOWN<<
23.92.66.0/24 54540 >>UNKNOWN<<
23.92.67.0/24 54540 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/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 /8:17 /9:11 /10:31 /11:93 /12:251
/13:478 /14:903 /15:1617 /16:12726 /17:6666 /18:10983
/19:22674 /20:32365 /21:34838 /22:48596 /23:42536 /24:244239
/25:8 /26:11 /27:11 /28:134 /29:202 /30:123
/31:0 /32:136
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 2014 2063 Covad Communications Co.
36998 1826 1861 MOBITEL
6389 1711 2976 BellSouth.net Inc.
22773 1329 2040 >>UNKNOWN<<
8402 1269 1531 >>UNKNOWN<<
30036 1208 1345 >>UNKNOWN<<
11492 1184 1223 >>UNKNOWN<<
1785 1079 2006 >>UNKNOWN<<
6983 1023 1150 ITC^Deltacom
10620 991 2673 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:799 2:760 3:3 4:16 5:912 6:17
8:592 12:1893 13:2 14:847 15:11 16:3
17:11 18:19 20:18 23:361 24:1735 27:1550
31:1418 32:40 33:2 34:5 36:70 37:1829
38:894 39:2 40:180 41:3291 42:241 44:9
46:1972 47:5 49:661 50:809 52:12 54:37
55:5 57:29 58:1089 59:642 60:330 61:1457
62:1182 63:1989 64:4554 65:2242 66:4192 67:2074
68:1091 69:3301 70:864 71:493 72:2033 74:2537
75:326 76:306 77:1130 78:1086 79:627 80:1311
81:1026 82:654 83:585 84:577 85:1219 86:482
87:1053 88:539 89:1818 90:158 91:5590 92:645
93:1657 94:2019 95:1555 96:523 97:347 98:1038
99:41 100:28 101:347 103:3176 105:519 106:138
107:210 108:480 109:1885 110:926 111:1101 112:568
113:789 114:704 115:1057 116:956 117:783 118:1120
119:1269 120:353 121:848 122:1786 123:1245 124:1338
125:1413 128:571 129:203 130:298 131:662 132:343
133:160 134:272 135:67 136:266 137:264 138:347
139:186 140:173 141:309 142:530 143:382 144:496
145:95 146:526 147:469 148:663 149:351 150:149
151:560 152:414 153:194 154:30 155:484 156:269
157:356 158:282 159:661 160:351 161:430 162:598
163:202 164:624 165:561 166:255 167:603 168:1022
169:125 170:1077 171:191 172:25 173:1562 174:518
175:483 176:1179 177:2196 178:1916 179:105 180:1521
181:661 182:1220 183:438 184:659 185:770 186:2466
187:1406 188:1881 189:1275 190:6981 192:6877 193:5530
194:4607 195:3602 196:1345 197:1018 198:4561 199:5385
200:5960 201:2602 202:8713 203:8786 204:4464 205:2574
206:2746 207:2833 208:3984 209:3610 210:2814 211:1551
212:2295 213:2036 214:914 215:100 216:5285 217:1659
218:608 219:317 220:1274 221:553 222:322 223:500
End of report