* BGP Routing Table Analysis Reports *
Routing Table Report 08:00 +10GMT Tue 17 Jul, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 409253
Prefixes after maximum aggregation: 173724
Deaggregation factor: 2.36
Unique aggregates announced to Internet: 203002
Total ASes present in the Internet Routing Table: 38753
Prefixes per ASN: 10.56
Origin-only ASes present in the Internet Routing Table: 33386
Origin ASes announcing only one prefix: 15729
Transit ASes present in the Internet Routing Table: 5367
Transit-only ASes present in the Internet Routing Table: 116
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 30
Max AS path prepend of ASN ( 51742) 24
Prefixes from unregistered ASNs in the Routing Table: 1036
Unregistered ASNs in the Routing Table: 173
Number of 32-bit ASNs allocated by the RIRs: 2996
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 6743
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 169
Number of addresses announced to Internet: 2585370112
Equivalent to 154 /8s, 25 /16s and 158 /24s
Percentage of available address space announced: 69.8
Percentage of allocated address space announced: 69.8
Percentage of available address space allocated: 99.9
Percentage of address space in use by end-sites: 93.0
Total number of prefixes smaller than registry allocations: 140747
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 95665
Total APNIC prefixes after maximum aggregation: 31188
APNIC Deaggregation factor: 3.07
Prefixes being announced from the APNIC address blocks: 96726
Unique aggregates announced from the APNIC address blocks: 41927
APNIC Region origin ASes present in the Internet Routing Table: 4666
APNIC Prefixes per ASN: 20.73
APNIC Region origin ASes announcing only one prefix: 1275
APNIC Region transit ASes present in the Internet Routing Table: 724
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 702091008
Equivalent to 41 /8s, 217 /16s and 15 /24s
Percentage of available APNIC address space announced: 82.1
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: 151425
Total ARIN prefixes after maximum aggregation: 76987
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 152409
Unique aggregates announced from the ARIN address blocks: 68523
ARIN Region origin ASes present in the Internet Routing Table: 15124
ARIN Prefixes per ASN: 10.08
ARIN Region origin ASes announcing only one prefix: 5752
ARIN Region transit ASes present in the Internet Routing Table: 1526
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 19
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 1071184640
Equivalent to 63 /8s, 216 /16s and 251 /24s
Percentage of available ARIN address space announced: 56.7
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, 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: 103991
Total RIPE prefixes after maximum aggregation: 55144
RIPE Deaggregation factor: 1.89
Prefixes being announced from the RIPE address blocks: 106144
Unique aggregates announced from the RIPE address blocks: 67256
RIPE Region origin ASes present in the Internet Routing Table: 16663
RIPE Prefixes per ASN: 6.37
RIPE Region origin ASes announcing only one prefix: 8093
RIPE Region transit ASes present in the Internet Routing Table: 2640
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 636324352
Equivalent to 37 /8s, 237 /16s and 138 /24s
Percentage of available RIPE address space announced: 92.5
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: 41640
Total LACNIC prefixes after maximum aggregation: 8221
LACNIC Deaggregation factor: 5.07
Prefixes being announced from the LACNIC address blocks: 44313
Unique aggregates announced from the LACNIC address blocks: 21814
LACNIC Region origin ASes present in the Internet Routing Table: 1595
LACNIC Prefixes per ASN: 27.78
LACNIC Region origin ASes announcing only one prefix: 430
LACNIC Region transit ASes present in the Internet Routing Table: 299
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 112191488
Equivalent to 6 /8s, 175 /16s and 232 /24s
Percentage of available LACNIC address space announced: 66.9
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 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: 9058
Total AfriNIC prefixes after maximum aggregation: 2130
AfriNIC Deaggregation factor: 4.25
Prefixes being announced from the AfriNIC address blocks: 9491
Unique aggregates announced from the AfriNIC address blocks: 3338
AfriNIC Region origin ASes present in the Internet Routing Table: 556
AfriNIC Prefixes per ASN: 17.07
AfriNIC Region origin ASes announcing only one prefix: 179
AfriNIC Region transit ASes present in the Internet Routing Table: 120
Average AfriNIC Region AS path length visible: 3.3
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 41001472
Equivalent to 2 /8s, 113 /16s and 162 /24s
Percentage of available AfriNIC address space announced: 40.7
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 2144 558 80 PT Telekomunikasi Indonesia
4766 2007 11111 775 Korea Telecom (KIX)
7545 1688 301 88 TPG Internet Pty Ltd
4755 1595 387 160 TATA Communications formerly
9829 1303 1085 28 National Internet Backbone
9583 1163 88 509 Sify Limited
7552 1080 1062 11 Vietel Corporation
24560 1033 385 167 Bharti Airtel Ltd., Telemedia
9498 979 291 67 BHARTI Airtel Ltd.
4808 963 1942 288 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
7029 3398 986 161 Windstream Communications Inc
6389 3389 3773 187 BellSouth.net Inc.
18566 2089 382 181 Covad Communications Co.
1785 1938 681 132 PaeTec Communications, Inc.
22773 1665 2911 121 Cox Communications Inc.
20115 1649 1571 615 Charter Communications
4323 1570 1059 382 tw telecom holdings, inc.
30036 1389 269 781 Mediacom Communications Corp
7018 1260 10072 827 AT&T Services, Inc.
7011 1191 316 697 Frontier Communications of Am
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 1557 544 16 Corbina telecom
2118 1023 97 14 EUnet/RELCOM Autonomous Syste
12479 796 741 94 France Telecom Espana SA
34984 728 189 174 BILISIM TELEKOM
6830 708 2292 442 UPC Broadband
31148 704 37 9 FreeNet ISP
20940 667 219 528 Akamai Technologies European
8551 603 364 61 Bezeq International
13188 521 100 10 Ukraine
9116 511 326 31 Goldenlines main autonomous s
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 2008 1214 55 Types of queries are: POCs, o
10620 1991 346 208 Types of queries are: POCs, o
6503 1512 418 66 Axtel, S.A.B. de C.V.
7303 1454 934 194 Telecom Argentina S.A.
8151 1328 3025 340 Uninet S.A. de C.V.
6458 717 81 15 Telgua
27947 691 74 88 Telconet S.A
11172 645 107 75 Alestra, S. de R.L. de C.V.
3816 596 249 92 Types of queries are: POCs, o
22047 583 326 15 Types of queries are: POCs, o
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
8452 1086 958 13 TEDATA
24863 864 274 32 LINKdotNET AS number
6713 509 650 19 Itissalat Al-MAGHRIB
24835 286 80 8 RAYA Telecom - Egypt
3741 262 905 223 The Internet Solution
12258 197 28 62 Vodacom Internet Company
29975 191 667 21 Vodacom
15706 159 32 6 Sudatel Internet Exchange Aut
29571 159 15 15 Ci Telecom Autonomous system
16637 157 664 87 MTN Network Solutions
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
7029 3398 986 161 Windstream Communications Inc
6389 3389 3773 187 BellSouth.net Inc.
17974 2144 558 80 PT Telekomunikasi Indonesia
18566 2089 382 181 Covad Communications Co.
28573 2008 1214 55 Types of queries are: POCs, o
4766 2007 11111 775 Korea Telecom (KIX)
10620 1991 346 208 Types of queries are: POCs, o
1785 1938 681 132 PaeTec Communications, Inc.
7545 1688 301 88 TPG Internet Pty Ltd
22773 1665 2911 121 Cox Communications Inc.
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 3389 3202 BellSouth.net Inc.
17974 2144 2064 PT Telekomunikasi Indonesia
28573 2008 1953 Types of queries are: POCs, o
18566 2089 1908 Covad Communications Co.
1785 1938 1806 PaeTec Communications, Inc.
10620 1991 1783 Types of queries are: POCs, o
7545 1688 1600 TPG Internet Pty Ltd
22773 1665 1544 Cox Communications Inc.
8402 1557 1541 Corbina telecom
6503 1512 1446 Axtel, S.A.B. de C.V.
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
59407 UNALLOCATED 5.134.16.0/21 51167 Giga-Hosting GmbH
65333 PRIVATE 10.0.0.0/8 0 *
32805 UNALLOCATED 12.1.225.0/24 7018 AT&T Services, Inc.
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
30031 UNALLOCATED 12.27.122.0/24 7018 AT&T Services, Inc.
26095 UNALLOCATED 12.34.8.0/24 7018 AT&T Services, Inc.
21861 UNALLOCATED 12.37.59.0/24 7018 AT&T Services, Inc.
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T Services, Inc.
19577 UNALLOCATED 12.41.188.0/24 7832 WW/Precision Communi
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
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 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
Complete listing at http://thyme.rand.apnic.net/london/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
5.149.112.0/21 23456 32-bit ASN transition
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
27.112.114.0/24 23884 Proimage Engineering and Comm
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 /8:20 /9:12 /10:29 /11:82 /12:236
/13:469 /14:841 /15:1515 /16:12240 /17:6369 /18:10676
/19:20736 /20:29627 /21:31205 /22:40599 /23:38918 /24:215103
/25:11 /26:22 /27:19 /28:151 /29:152 /30:83
/31:0 /32:138
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2759 3398 Windstream Communications Inc
18566 2039 2089 Covad Communications Co.
6389 1868 3389 BellSouth.net Inc.
30036 1324 1389 Mediacom Communications Corp
8402 1254 1557 Corbina telecom
11492 1154 1191 CABLE ONE, INC.
22773 1096 1665 Cox Communications Inc.
6503 1047 1512 Axtel, S.A.B. de C.V.
1785 1045 1938 PaeTec Communications, Inc.
7011 930 1191 Frontier Communications of Am
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:531 2:711 3:1 4:13 5:130 6:3
8:433 12:1977 13:1 14:617 15:12 16:3
17:5 20:24 23:187 24:1749 27:1322 31:1032
32:51 33:2 34:2 36:8 37:615 38:817
39:1 40:128 41:2905 42:141 44:3 46:1524
47:2 49:431 50:548 52:13 54:14 55:7
56:1 57:40 58:920 59:526 60:238 61:1229
62:926 63:2027 64:4231 65:2233 66:4484 67:2008
68:1156 69:3197 70:985 71:512 72:1874 74:2608
75:488 76:335 77:925 78:911 79:491 80:1220
81:948 82:651 83:535 84:486 85:1147 86:430
87:932 88:355 89:1676 90:301 91:5038 92:584
93:1298 94:1560 95:1202 96:377 97:322 98:896
99:36 100:21 101:253 103:1233 106:115 107:189
108:358 109:1462 110:775 111:935 112:420 113:631
114:648 115:896 116:874 117:715 118:876 119:1113
120:348 121:783 122:1623 123:1161 124:1309 125:1254
128:520 129:180 130:257 131:626 132:294 133:22
134:236 135:61 136:217 137:235 138:333 139:174
140:469 141:244 142:412 143:367 144:473 145:77
146:505 147:283 148:747 149:316 150:144 151:185
152:474 153:176 154:16 155:450 156:222 157:337
158:190 159:547 160:340 161:251 162:379 163:181
164:665 165:409 166:589 167:533 168:910 169:124
170:897 171:146 172:5 173:1730 174:608 175:428
176:557 177:949 178:1602 180:1282 181:104 182:935
183:231 184:540 186:1998 187:1075 188:1369 189:1587
190:5913 192:5972 193:5537 194:4483 195:3225 196:1204
197:171 198:3635 199:4884 200:5850 201:1972 202:8370
203:8550 204:4312 205:2511 206:2714 207:2767 208:4034
209:3614 210:2702 211:1540 212:1973 213:1822 214:866
215:82 216:5080 217:1551 218:544 219:320 220:1222
221:551 222:300 223:325
End of report
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