Routing Table Report 08:00 +10GMT Sat 09 Apr, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 347681
Prefixes after maximum aggregation: 158136
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 174444
Total ASes present in the Internet Routing Table: 36072
Prefixes per ASN: 9.64
Origin-only ASes present in the Internet Routing Table: 31196
Origin ASes announcing only one prefix: 15021
Transit ASes present in the Internet Routing Table: 4876
Transit-only ASes present in the Internet Routing Table: 115
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 1905
Unregistered ASNs in the Routing Table: 349
Number of 32-bit ASNs allocated by the RIRs: 1270
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2180
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 177
Number of addresses announced to Internet: 2421607424
Equivalent to 144 /8s, 86 /16s and 204 /24s
Percentage of available address space announced: 65.3
Percentage of allocated address space announced: 65.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 90.3
Total number of prefixes smaller than registry allocations: 142552
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 83778
Total APNIC prefixes after maximum aggregation: 28493
APNIC Deaggregation factor: 2.94
Prefixes being announced from the APNIC address blocks: 81540
Unique aggregates announced from the APNIC address blocks: 36698
APNIC Region origin ASes present in the Internet Routing Table: 4334
APNIC Prefixes per ASN: 18.81
APNIC Region origin ASes announcing only one prefix: 1221
APNIC Region transit ASes present in the Internet Routing Table: 665
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 23
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 604255744
Equivalent to 36 /8s, 4 /16s and 54 /24s
Percentage of available APNIC address space announced: 76.6
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
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, 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: 137658
Total ARIN prefixes after maximum aggregation: 70458
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 110497
Unique aggregates announced from the ARIN address blocks: 45104
ARIN Region origin ASes present in the Internet Routing Table: 14227
ARIN Prefixes per ASN: 7.77
ARIN Region origin ASes announcing only one prefix: 5450
ARIN Region transit ASes present in the Internet Routing Table: 1417
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: 0
Number of ARIN addresses announced to Internet: 797834752
Equivalent to 47 /8s, 141 /16s and 254 /24s
Percentage of available ARIN address space announced: 63.4
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, 173/8,
174/8, 184/8, 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: 83636
Total RIPE prefixes after maximum aggregation: 47572
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 76882
Unique aggregates announced from the RIPE address blocks: 50581
RIPE Region origin ASes present in the Internet Routing Table: 15474
RIPE Prefixes per ASN: 4.97
RIPE Region origin ASes announcing only one prefix: 7783
RIPE Region transit ASes present in the Internet Routing Table: 2390
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 464097536
Equivalent to 27 /8s, 169 /16s and 145 /24s
Percentage of available RIPE address space announced: 74.8
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
196608-198655
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,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 32054
Total LACNIC prefixes after maximum aggregation: 7327
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 31138
Unique aggregates announced from the LACNIC address blocks: 16299
LACNIC Region origin ASes present in the Internet Routing Table: 1423
LACNIC Prefixes per ASN: 21.88
LACNIC Region origin ASes announcing only one prefix: 434
LACNIC Region transit ASes present in the Internet Routing Table: 249
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 81721088
Equivalent to 4 /8s, 222 /16s and 247 /24s
Percentage of available LACNIC address space announced: 54.1
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,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 7674
Total AfriNIC prefixes after maximum aggregation: 1827
AfriNIC Deaggregation factor: 4.20
Prefixes being announced from the AfriNIC address blocks: 6035
Unique aggregates announced from the AfriNIC address blocks: 1855
AfriNIC Region origin ASes present in the Internet Routing Table: 442
AfriNIC Prefixes per ASN: 13.65
AfriNIC Region origin ASes announcing only one prefix: 133
AfriNIC Region transit ASes present in the Internet Routing Table: 98
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 22715648
Equivalent to 1 /8s, 90 /16s and 157 /24s
Percentage of available AfriNIC address space announced: 33.8
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1876 9507 605 Korea Telecom (KIX)
7545 1545 301 84 TPG Internet Pty Ltd
17974 1455 472 34 PT Telekomunikasi Indonesia
4755 1443 638 168 TATA Communications formerly
24560 1137 322 203 Bharti Airtel Ltd., Telemedia
9583 1055 77 494 Sify Limited
9829 1005 869 51 National Internet Backbone
4808 949 2028 277 CNCGROUP IP network China169
18101 936 116 139 Reliance Infocom Ltd Internet
17488 853 141 90 Hathway IP Over Cable Interne
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 3667 3822 256 BellSouth.net Inc.
4323 2540 1106 397 tw telecom holdings, inc.
1785 1793 681 130 PaeTec Communications, Inc.
18566 1634 334 201 Covad Communications Co.
6478 1607 305 36 AT&T Services, Inc.
20115 1536 1551 641 Charter Communications
19262 1490 4948 296 Verizon Online LLC
7018 1363 6961 891 AT&T Services, Inc.
22773 1293 2865 84 Cox Communications Inc.
2386 1279 538 923 AT&T Data Communications Serv
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
9116 541 326 30 Goldenlines main autonomous s
6830 513 1780 318 UPC Broadband
34984 495 97 188 BILISIM TELEKOM
29049 468 34 34 AzerSat LLC.
3292 455 2013 392 TDC Data Networks
8866 446 134 26 Bulgarian Telecommunication C
20940 445 129 341 Akamai Technologies European
3320 418 7607 364 Deutsche Telekom AG
8551 405 355 38 Bezeq International
12479 403 577 6 France Telecom Espana SA
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
10620 1413 263 156 Types of queries are: POCs, o
28573 1253 972 86 Types of queries are: POCs, o
8151 1230 2663 363 Uninet S.A. de C.V.
6503 1112 354 73 Axtel, S.A.B. de C.V.
7303 900 464 136 Telecom Argentina S.A.
14420 645 52 89 CORPORACION NACIONAL DE TELEC
22047 567 310 15 Types of queries are: POCs, o
3816 516 225 97 Types of queries are: POCs, o
11172 485 99 81 Alestra, S. de R.L. de C.V.
7738 479 922 30 Telecomunicacoes da Bahia S.A
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 836 445 11 TEDATA
24863 768 147 35 LINKdotNET AS number
15475 425 90 8 Nile Online
36992 295 287 12 Etisalat MISR
3741 266 985 227 The Internet Solution
24835 232 78 10 RAYA Telecom - Egypt
6713 231 215 12 Itissalat Al-MAGHRIB
33776 227 13 5 Starcomms Nigeria Limited
29571 191 17 11 Ci Telecom Autonomous system
16637 147 441 86 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
6389 3667 3822 256 BellSouth.net Inc.
4323 2540 1106 397 tw telecom holdings, inc.
23456 2180 635 1179 32-bit ASN transition
4766 1876 9507 605 Korea Telecom (KIX)
1785 1793 681 130 PaeTec Communications, Inc.
18566 1634 334 201 Covad Communications Co.
6478 1607 305 36 AT&T Services, Inc.
7545 1545 301 84 TPG Internet Pty Ltd
20115 1536 1551 641 Charter Communications
19262 1490 4948 296 Verizon Online LLC
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2540 2143 tw telecom holdings, inc.
1785 1793 1663 PaeTec Communications, Inc.
6478 1607 1571 AT&T Services, Inc.
7545 1545 1461 TPG Internet Pty Ltd
18566 1634 1433 Covad Communications Co.
17974 1455 1421 PT Telekomunikasi Indonesia
4755 1443 1275 TATA Communications formerly
4766 1876 1271 Korea Telecom (KIX)
10620 1413 1257 Types of queries are: POCs, o
11492 1262 1247 CABLE ONE, INC.
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
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.
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.25.107.0/24 4323 tw telecom holdings,
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.
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 65535 Internet Assigned Numbers Aut
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
1.3.0.0/16 38639 for assignment to JPNIC membe
2.56.0.0/16 44559 E-Rent LLC
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
31.3.80.0/21 23456 32-bit ASN transition
31.3.96.0/21 35470 XL Network
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 /10:26 /11:74 /12:219
/13:448 /14:767 /15:1373 /16:11557 /17:5702 /18:9385
/19:19190 /20:25034 /21:25332 /22:33428 /23:31973 /24:182710
/25:10 /26:14 /27:21 /28:144 /29:89 /30:46
/31:0 /32:107
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2263 3667 BellSouth.net Inc.
18566 1612 1634 Covad Communications Co.
6478 1561 1607 AT&T Services, Inc.
4323 1360 2540 tw telecom holdings, inc.
10620 1303 1413 Types of queries are: POCs, o
11492 1211 1262 CABLE ONE, INC.
23456 1125 2180 32-bit ASN transition
7011 1061 1161 Frontier Communications of Am
1785 1057 1793 PaeTec Communications, Inc.
6503 896 1112 Axtel, S.A.B. de C.V.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:294 2:55 4:14 5:1 8:350 12:2001
13:1 14:420 15:15 16:3 17:8 20:9
23:5 24:1596 27:710 31:206 32:55 33:3
34:2 37:1 38:747 39:1 40:101 41:2386
42:1 44:3 46:794 47:4 49:171 50:216
52:13 55:3 56:2 57:30 58:795 59:479
60:404 61:1062 62:997 63:1916 64:3862 65:2331
66:4299 67:1800 68:1079 69:2945 70:701 71:343
72:1899 73:1 74:2323 75:284 76:336 77:852
78:688 79:459 80:1078 81:822 82:513 83:461
84:648 85:1046 86:556 87:767 88:340 89:1580
90:178 91:3677 92:497 93:1047 94:1259 95:776
96:443 97:252 98:817 99:35 101:53 106:2
107:4 108:78 109:936 110:531 111:671 112:314
113:384 114:490 115:693 116:840 117:671 118:763
119:1126 120:287 121:689 122:1618 123:1057 124:1261
125:1254 128:212 129:161 130:166 131:562 132:100
133:20 134:208 135:49 136:210 137:139 138:301
139:102 140:465 141:173 142:361 143:386 144:475
145:53 146:438 147:202 148:620 149:262 150:161
151:187 152:300 153:180 154:2 155:392 156:186
157:325 158:132 159:374 160:316 161:234 162:276
163:154 164:489 165:347 166:511 167:418 168:719
169:153 170:774 171:74 172:1 173:1257 174:536
175:337 177:77 178:835 180:800 181:7 182:404
183:201 184:240 185:1 186:1121 187:913 188:934
189:1041 190:4804 192:5727 193:4809 194:3467 195:2947
196:1210 197:17 198:3521 199:3867 200:5533 201:1474
202:8141 203:8362 204:4055 205:2301 206:2518 207:2925
208:3918 209:3475 210:2648 211:1354 212:1991 213:1714
214:728 215:66 216:4844 217:1643 218:544 219:384
220:1189 221:462 222:306 223:102
End of report
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