The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Friday, December 6, 2013

[bgp-stats] Routing Table Report - Brisbane view

* BGP Routing Table Analysis Reports *
Routing Table Report 05:00 +10GMT Sat 07 Dec, 2013

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/au/

Analysis Summary
----------------

BGP routing table entries examined: 469658
Prefixes after maximum aggregation: 188580
Deaggregation factor: 2.49
Unique aggregates announced to Internet: 234992
Total ASes present in the Internet Routing Table: 45506
Prefixes per ASN: 10.32
Origin-only ASes present in the Internet Routing Table: 35449
Origin ASes announcing only one prefix: 16279
Transit ASes present in the Internet Routing Table: 5810
Transit-only ASes present in the Internet Routing Table: 155
Average AS path length visible in the Internet Routing Table: 4.9
Max AS path length visible: 29
Max AS path prepend of ASN ( 55644) 25
Prefixes from unregistered ASNs in the Routing Table: 1124
Unregistered ASNs in the Routing Table: 305
Number of 32-bit ASNs allocated by the RIRs: 5465
Number of 32-bit ASNs visible in the Routing Table: 4247
Prefixes from 32-bit ASNs in the Routing Table: 13168
Number of bogon 32-bit ASNs visible in the Routing Table: 1
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 1333
Number of addresses announced to Internet: 2656546044
Equivalent to 158 /8s, 87 /16s and 172 /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: 95.3
Total number of prefixes smaller than registry allocations: 163265

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 110282
Total APNIC prefixes after maximum aggregation: 33526
APNIC Deaggregation factor: 3.29
Prefixes being announced from the APNIC address blocks: 112517
Unique aggregates announced from the APNIC address blocks: 47812
APNIC Region origin ASes present in the Internet Routing Table: 4846
APNIC Prefixes per ASN: 23.22
APNIC Region origin ASes announcing only one prefix: 1223
APNIC Region transit ASes present in the Internet Routing Table: 830
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 29
Number of APNIC region 32-bit ASNs visible in the Routing Table: 775
Number of APNIC addresses announced to Internet: 728538108
Equivalent to 43 /8s, 108 /16s and 155 /24s
Percentage of available APNIC address space announced: 85.1

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-63999, 131072-133631
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: 161909
Total ARIN prefixes after maximum aggregation: 81335
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 162688
Unique aggregates announced from the ARIN address blocks: 75694
ARIN Region origin ASes present in the Internet Routing Table: 15884
ARIN Prefixes per ASN: 10.24
ARIN Region origin ASes announcing only one prefix: 6004
ARIN Region transit ASes present in the Internet Routing Table: 1622
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 41
Number of ARIN addresses announced to Internet: 1072909568
Equivalent to 63 /8s, 243 /16s and 77 /24s
Percentage of available ARIN address space announced: 56.8

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, 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: 119202
Total RIPE prefixes after maximum aggregation: 61062
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 123020
Unique aggregates announced from the RIPE address blocks: 78942
RIPE Region origin ASes present in the Internet Routing Table: 17516
RIPE Prefixes per ASN: 7.02
RIPE Region origin ASes announcing only one prefix: 8290
RIPE Region transit ASes present in the Internet Routing Table: 2780
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 21
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2508
Number of RIPE addresses announced to Internet: 655994368
Equivalent to 39 /8s, 25 /16s and 174 /24s
Percentage of available RIPE address space announced: 95.4

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, 196608-200191
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: 52574
Total LACNIC prefixes after maximum aggregation: 9817
LACNIC Deaggregation factor: 5.36
Prefixes being announced from the LACNIC address blocks: 57763
Unique aggregates announced from the LACNIC address blocks: 27404
LACNIC Region origin ASes present in the Internet Routing Table: 2040
LACNIC Prefixes per ASN: 28.32
LACNIC Region origin ASes announcing only one prefix: 554
LACNIC Region transit ASes present in the Internet Routing Table: 383
Average LACNIC Region AS path length visible: 5.4
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 915
Number of LACNIC addresses announced to Internet: 146149120
Equivalent to 8 /8s, 182 /16s and 15 /24s
Percentage of available LACNIC address space announced: 87.1

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: 11698
Total AfriNIC prefixes after maximum aggregation: 2609
AfriNIC Deaggregation factor: 4.48
Prefixes being announced from the AfriNIC address blocks: 12337
Unique aggregates announced from the AfriNIC address blocks: 4088
AfriNIC Region origin ASes present in the Internet Routing Table: 691
AfriNIC Prefixes per ASN: 17.85
AfriNIC Region origin ASes announcing only one prefix: 208
AfriNIC Region transit ASes present in the Internet Routing Table: 138
Average AfriNIC Region AS path length visible: 5.0
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 8
Number of AfriNIC addresses announced to Internet: 48526336
Equivalent to 2 /8s, 228 /16s and 116 /24s
Percentage of available AfriNIC address space announced: 48.2

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 2720 902 88 PT TELEKOMUNIKASI INDONESIA
4766 2162 11551 653 Korea Telecom (KIX)
7545 2113 319 110 TPG Internet Pty Ltd
4755 1794 392 190 TATA Communications formerly
9829 1538 1244 47 BSNL National Internet Backbo
9583 1317 103 541 Sify Limited
9498 1218 309 72 BHARTI Airtel Ltd.
7552 1167 1080 13 Vietel Corporation
24560 1098 382 166 Bharti Airtel Ltd., Telemedia
4808 1039 1945 303 CNCGROUP IP network: China169

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3038 3688 53 BellSouth.net Inc.
22773 2299 2939 138 Cox Communications, Inc.
18566 2051 379 178 MegaPath Corporation
1785 2048 686 131 PaeTec Communications, Inc.
20115 1684 1657 600 Charter Communications
4323 1648 1114 419 Time Warner Telecom
701 1506 11144 779 MCI Communications Services,
30036 1381 311 581 Mediacom Communications Corp
7018 1324 17778 865 AT&T WorldNet Services
6983 1293 755 578 ITC^Deltacom

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1895 544 16 OJSC "Vimpelcom"
34984 1368 244 224 TELLCOM ILETISIM HIZMETLERI A
20940 1193 452 897 Akamai Technologies European
31148 1010 45 20 FreeNet ISP
13188 896 99 42 TOV "Bank-Inform"
6849 855 363 39 JSC UKRTELECOM,
8551 786 370 41 Bezeq International
6830 757 2327 411 UPC Distribution Services
12479 679 798 53 Uni2 Autonomous System
35228 547 246 16 Avatar Broadband Limited

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3420 1829 94 NET Servicos de Comunicao S.A
10620 2688 435 198 Telmex Colombia S.A.
7303 1735 1161 230 Telecom Argentina Stet-France
18881 1708 908 20 Global Village Telecom
8151 1353 2852 417 UniNet S.A. de C.V.
11830 868 364 15 Instituto Costarricense de El
27947 825 94 91 Telconet S.A
6147 793 373 27 Telefonica Del Peru
7738 780 1498 36 Telecomunicacoes da Bahia S.A
6503 773 434 61 AVANTEL, S.A.

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
36998 1854 112 5 Sudanese Mobile Telephone (ZA
24863 872 338 26 LINKdotNET AS number
6713 551 633 26 Itissalat Al-MAGHRIB
8452 414 956 9 TEDATA
24835 297 144 9 RAYA Telecom - Egypt
3741 247 921 209 The Internet Solution
29571 228 21 13 Ci Telecom Autonomous system
36992 222 501 29 Etisalat MISR
15706 219 32 6 Sudatel Internet Exchange Aut
29975 192 668 21 Vodacom

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3420 1829 94 NET Servicos de Comunicao S.A
6389 3038 3688 53 BellSouth.net Inc.
17974 2720 902 88 PT TELEKOMUNIKASI INDONESIA
10620 2688 435 198 Telmex Colombia S.A.
22773 2299 2939 138 Cox Communications, Inc.
4766 2162 11551 653 Korea Telecom (KIX)
7545 2113 319 110 TPG Internet Pty Ltd
18566 2051 379 178 MegaPath Corporation
1785 2048 686 131 PaeTec Communications, Inc.
8402 1895 544 16 OJSC "Vimpelcom"

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
6389 3038 2985 BellSouth.net Inc.
17974 2720 2632 PT TELEKOMUNIKASI INDONESIA
10620 2688 2490 Telmex Colombia S.A.
22773 2299 2161 Cox Communications, Inc.
7545 2113 2003 TPG Internet Pty Ltd
1785 2048 1917 PaeTec Communications, Inc.
8402 1895 1879 OJSC "Vimpelcom"
18566 2051 1873 MegaPath Corporation
36998 1854 1849 Sudanese Mobile Telephone (ZA
18881 1708 1688 Global Village Telecom

Complete listing at http://thyme.rand.apnic.net/au/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
65010 PRIVATE 1.38.8.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.9.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.11.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.32.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.160.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.192.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.224.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.240.0/21 38266 Hutchison Essar Ltd.
65514 PRIVATE 5.102.224.0/19 47956 XFONE COMMUNICATION
62828 UNALLOCATED 8.21.130.0/24 4323 Time Warner Telecom

Complete listing at http://thyme.rand.apnic.net/au/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
100.100.0.0/24 4847 China Networks Inter-Exchange

Complete listing at http://thyme.rand.apnic.net/au/data-dsua

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
23.90.128.0/18 27418 OUTOFWALL INC.
23.91.0.0/19 40676 Psychz Networks
23.91.4.0/24 40676 Psychz Networks
23.91.14.0/24 40676 Psychz Networks
23.91.32.0/19 36315 Servpac Inc.
23.91.80.0/20 21560 Capital Technology Services G
23.91.96.0/20 37958 ChinaCache Networks ASN
23.91.112.0/21 32475 MidPhase Inc.
23.91.120.0/21 36351 SoftLayer Technologies Inc.
23.91.160.0/19 36493 3757277 Canada Inc. (oa 295.c

Complete listing at http://thyme.rand.apnic.net/au/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 /8:16 /9:11 /10:31 /11:92 /12:253
/13:476 /14:936 /15:1642 /16:12851 /17:6782 /18:11179
/19:23085 /20:32840 /21:35625 /22:50060 /23:43798 /24:249757
/25:44 /26:33 /27:50 /28:37 /29:29 /30:31
/31:0 /32:0

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
18566 2006 2051 MegaPath Corporation
36998 1819 1854 Sudanese Mobile Telephone (ZA
6389 1700 3038 BellSouth.net Inc.
8402 1601 1895 OJSC "Vimpelcom"
22773 1551 2299 Cox Communications, Inc.
30036 1221 1381 Mediacom Communications Corp
11492 1183 1224 Cable One
1785 1088 2048 PaeTec Communications, Inc.
6983 1035 1293 ITC^Deltacom
22561 964 1239 Digital Teleport, Inc

Complete listing at http://thyme.rand.apnic.net/au/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:922 2:860 3:3 4:16 5:810 6:21
8:611 12:1877 13:3 14:878 15:11 16:3
17:19 18:19 20:25 23:613 24:1754 27:1712
31:1519 32:45 33:2 34:5 36:96 37:1944
38:914 39:5 40:181 41:3221 42:229 44:14
46:2052 47:10 49:698 50:864 52:12 54:44
55:5 56:4 57:26 58:1090 59:583 60:367
61:1469 62:1247 63:1974 64:4393 65:2330 66:4145
67:2109 68:1095 69:3296 70:909 71:503 72:2017
74:2577 75:324 76:304 77:1216 78:1012 79:670
80:1278 81:1055 82:632 83:753 84:584 85:1251
86:380 87:1037 88:548 89:1564 90:154 91:5715
92:620 93:1609 94:2117 95:1502 96:516 97:349
98:1129 99:41 100:33 101:441 103:3777 105:530
106:143 107:229 108:536 109:2005 110:972 111:1120
112:578 113:802 114:745 115:1033 116:1016 117:812
118:1220 119:1290 120:367 121:748 122:1836 123:1267
124:1349 125:1470 128:603 129:223 130:339 131:656
132:344 133:158 134:295 135:72 136:274 137:265
138:352 139:168 140:170 141:342 142:537 143:401
144:496 145:90 146:544 147:424 148:728 149:367
150:154 151:485 152:415 153:207 154:45 155:517
156:303 157:368 158:284 159:695 160:361 161:455
162:904 163:204 164:624 165:577 166:276 167:637
168:1037 169:123 170:1124 171:185 172:11 173:1626
174:667 175:533 176:1313 177:2483 178:1873 179:313
180:1624 181:886 182:1412 183:480 184:621 185:1101
186:2647 187:1459 188:1949 189:1250 190:7287 192:7009
193:5413 194:4028 195:3358 196:1340 197:1057 198:4710
199:5475 200:6051 201:2523 202:8898 203:8947 204:4471
205:2630 206:2802 207:2730 208:3954 209:3657 210:2973
211:1607 212:2179 213:1989 214:885 215:84 216:5404
217:1708 218:636 219:311 220:1264 221:587 222:330
223:554

End of report
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