Routing Table Report 08:00 +10GMT Fri 01 Jul, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 356818
Prefixes after maximum aggregation: 162627
Deaggregation factor: 2.19
Unique aggregates announced to Internet: 179763
Total ASes present in the Internet Routing Table: 36680
Prefixes per ASN: 9.73
Origin-only ASes present in the Internet Routing Table: 31638
Origin ASes announcing only one prefix: 15238
Transit ASes present in the Internet Routing Table: 5042
Transit-only ASes present in the Internet Routing Table: 119
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 30
Max AS path prepend of ASN (22394) 27
Prefixes from unregistered ASNs in the Routing Table: 2263
Unregistered ASNs in the Routing Table: 564
Number of 32-bit ASNs allocated by the RIRs: 1510
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2774
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 132
Number of addresses announced to Internet: 2491729152
Equivalent to 148 /8s, 132 /16s and 197 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.0
Total number of prefixes smaller than registry allocations: 147155
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85593
Total APNIC prefixes after maximum aggregation: 28899
APNIC Deaggregation factor: 2.96
Prefixes being announced from the APNIC address blocks: 83295
Unique aggregates announced from the APNIC address blocks: 37137
APNIC Region origin ASes present in the Internet Routing Table: 4443
APNIC Prefixes per ASN: 18.75
APNIC Region origin ASes announcing only one prefix: 1256
APNIC Region transit ASes present in the Internet Routing Table: 677
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: 619471104
Equivalent to 36 /8s, 236 /16s and 97 /24s
Percentage of available APNIC address space announced: 78.6
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: 140058
Total ARIN prefixes after maximum aggregation: 72133
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 112334
Unique aggregates announced from the ARIN address blocks: 46559
ARIN Region origin ASes present in the Internet Routing Table: 14379
ARIN Prefixes per ASN: 7.81
ARIN Region origin ASes announcing only one prefix: 5510
ARIN Region transit ASes present in the Internet Routing Table: 1453
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 30
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 802878720
Equivalent to 47 /8s, 218 /16s and 245 /24s
Percentage of available ARIN address space announced: 63.8
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: 86685
Total RIPE prefixes after maximum aggregation: 49002
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 80076
Unique aggregates announced from the RIPE address blocks: 52664
RIPE Region origin ASes present in the Internet Routing Table: 15761
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7878
RIPE Region transit ASes present in the Internet Routing Table: 2474
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 29
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 478608640
Equivalent to 28 /8s, 134 /16s and 253 /24s
Percentage of available RIPE address space announced: 77.1
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: 32637
Total LACNIC prefixes after maximum aggregation: 7458
LACNIC Deaggregation factor: 4.38
Prefixes being announced from the LACNIC address blocks: 32071
Unique aggregates announced from the LACNIC address blocks: 16991
LACNIC Region origin ASes present in the Internet Routing Table: 1460
LACNIC Prefixes per ASN: 21.97
LACNIC Region origin ASes announcing only one prefix: 447
LACNIC Region transit ASes present in the Internet Routing Table: 257
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 85700608
Equivalent to 5 /8s, 27 /16s and 176 /24s
Percentage of available LACNIC address space announced: 56.8
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: 8336
Total AfriNIC prefixes after maximum aggregation: 2017
AfriNIC Deaggregation factor: 4.13
Prefixes being announced from the AfriNIC address blocks: 6463
Unique aggregates announced from the AfriNIC address blocks: 1964
AfriNIC Region origin ASes present in the Internet Routing Table: 468
AfriNIC Prefixes per ASN: 13.81
AfriNIC Region origin ASes announcing only one prefix: 147
AfriNIC Region transit ASes present in the Internet Routing Table: 103
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: 0
Number of AfriNIC addresses announced to Internet: 24293120
Equivalent to 1 /8s, 114 /16s and 175 /24s
Percentage of available AfriNIC address space announced: 36.2
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 1900 9492 623 Korea Telecom (KIX)
7545 1541 301 84 TPG Internet Pty Ltd
17974 1534 461 43 PT Telekomunikasi Indonesia
4755 1487 375 167 TATA Communications formerly
24560 1153 336 187 Bharti Airtel Ltd., Telemedia
9583 1056 78 506 Sify Limited
9829 1047 888 54 National Internet Backbone
4808 965 2018 283 CNCGROUP IP network China169
17488 958 186 103 Hathway IP Over Cable Interne
18101 933 116 140 Reliance Infocom Ltd Internet
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 3618 3819 248 BellSouth.net Inc.
18566 1912 365 240 Covad Communications Co.
1785 1805 681 122 PaeTec Communications, Inc.
4323 1661 1098 400 tw telecom holdings, inc.
20115 1587 1531 634 Charter Communications
19262 1450 4806 370 Verizon Online LLC
7029 1407 1031 207 Windstream Communications Inc
7018 1380 7086 905 AT&T Services, Inc.
22773 1345 2897 87 Cox Communications Inc.
6478 1337 248 613 AT&T Services, Inc.
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 540 326 31 Goldenlines main autonomous s
34984 534 106 185 BILISIM TELEKOM
6830 512 1780 318 UPC Broadband
3292 468 2080 403 TDC Data Networks
20940 467 137 360 Akamai Technologies European
8866 451 134 26 Bulgarian Telecommunication C
29049 444 33 45 AzerSat LLC.
12479 439 593 7 France Telecom Espana SA
3320 420 8151 367 Deutsche Telekom AG
8551 405 355 38 Bezeq International
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 1538 282 157 Types of queries are: POCs, o
28573 1259 996 80 Types of queries are: POCs, o
8151 1251 2723 353 Uninet S.A. de C.V.
7303 976 506 162 Telecom Argentina S.A.
6503 736 354 74 Axtel, S.A.B. de C.V.
14420 685 55 81 CORPORACION NACIONAL DE TELEC
22047 576 322 17 Types of queries are: POCs, o
3816 536 232 91 Types of queries are: POCs, o
7738 516 986 31 Telecomunicacoes da Bahia S.A
11172 495 100 85 Alestra, S. de R.L. de C.V.
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
24863 788 147 35 LINKdotNET AS number
8452 787 445 11 TEDATA
15475 524 74 8 Nile Online
36992 315 415 14 Etisalat MISR
3741 261 937 223 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
24835 211 78 10 RAYA Telecom - Egypt
33776 208 12 10 Starcomms Nigeria Limited
29571 192 17 11 Ci Telecom Autonomous system
16637 149 441 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
6389 3618 3819 248 BellSouth.net Inc.
23456 2774 691 1512 32-bit ASN transition
18566 1912 365 240 Covad Communications Co.
4766 1900 9492 623 Korea Telecom (KIX)
1785 1805 681 122 PaeTec Communications, Inc.
4323 1661 1098 400 tw telecom holdings, inc.
20115 1587 1531 634 Charter Communications
7545 1541 301 84 TPG Internet Pty Ltd
10620 1538 282 157 Types of queries are: POCs, o
17974 1534 461 43 PT Telekomunikasi Indonesia
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
1785 1805 1683 PaeTec Communications, Inc.
18566 1912 1672 Covad Communications Co.
17974 1534 1491 PT Telekomunikasi Indonesia
7545 1541 1457 TPG Internet Pty Ltd
10620 1538 1381 Types of queries are: POCs, o
4755 1487 1320 TATA Communications formerly
4766 1900 1277 Korea Telecom (KIX)
23456 2774 1262 32-bit ASN transition
4323 1661 1261 tw telecom holdings, inc.
22773 1345 1258 Cox Communications 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
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.
26973 UNALLOCATED 12.39.152.0/24 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
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
27.0.128.0/17 7514 Media EXchange, Inc.
41.190.32.0/23 31856 CABSAS
41.190.34.0/23 31856 CABSAS
41.190.36.0/23 31856 CABSAS
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 /8:22 /9:12 /10:28 /11:81 /12:231
/13:461 /14:800 /15:1396 /16:11953 /17:5856 /18:9691
/19:19548 /20:25874 /21:26074 /22:34341 /23:33144 /24:186792
/25:13 /26:19 /27:26 /28:160 /29:104 /30:60
/31:0 /32:132
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2223 3618 BellSouth.net Inc.
18566 1868 1912 Covad Communications Co.
10620 1433 1538 Types of queries are: POCs, o
23456 1360 2774 32-bit ASN transition
6478 1308 1337 AT&T Services, Inc.
11492 1090 1136 CABLE ONE, INC.
7029 1087 1407 Windstream Communications Inc
7011 1056 1157 Frontier Communications of Am
1785 1052 1805 PaeTec Communications, Inc.
22773 860 1345 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:317 2:46 4:16 5:1 6:3 8:338
12:1972 13:1 14:461 15:15 16:3 17:8
20:10 23:12 24:1655 27:801 31:485 32:59
33:4 34:2 36:4 37:1 38:734 39:3
40:103 41:2536 42:22 44:3 46:991 47:3
49:196 50:431 52:13 54:2 55:3 56:2
57:32 58:815 59:472 60:384 61:1013 62:1049
63:1930 64:3922 65:2264 66:3860 67:1902 68:1087
69:3021 70:754 71:396 72:1889 74:2376 75:319
76:339 77:882 78:706 79:468 80:1118 81:847
82:503 83:460 84:688 85:1081 86:551 87:760
88:337 89:1528 90:211 91:3916 92:537 93:1047
94:1324 95:850 96:441 97:254 98:890 99:36
101:72 103:99 106:10 107:19 108:70 109:1013
110:597 111:710 112:295 113:403 114:542 115:654
116:947 117:665 118:810 119:1135 120:306 121:646
122:1607 123:952 124:1261 125:1224 128:208 129:166
130:162 131:572 132:104 133:21 134:206 135:48
136:213 137:133 138:299 139:113 140:458 141:241
142:387 143:414 144:478 145:54 146:442 147:214
148:587 149:246 150:157 151:191 152:328 153:180
154:3 155:399 156:193 157:321 158:138 159:385
160:313 161:202 162:307 163:155 164:505 165:352
166:534 167:431 168:732 169:156 170:842 171:76
172:1 173:1635 174:612 175:359 176:142 177:143
178:991 180:885 181:19 182:473 183:223 184:311
185:1 186:1251 187:727 188:876 189:930 190:4937
192:5844 193:4971 194:3486 195:3028 196:1237 197:41
198:3519 199:3927 200:5478 201:1507 202:8169 203:8336
204:4147 205:2318 206:2593 207:2743 208:3952 209:3431
210:2596 211:1447 212:2114 213:1746 214:760 215:70
216:4905 217:1643 218:533 219:358 220:1196 221:476
222:310 223:177
End of report
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