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.

Saturday, November 16, 2013

[bgp-stats] Routing Table Report - Brisbane view

* BGP Routing Table Analysis Reports *
Routing Table Report 05:00 +10GMT Sun 17 Nov, 2013

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

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

BGP routing table entries examined: 468132
Prefixes after maximum aggregation: 187891
Deaggregation factor: 2.49
Unique aggregates announced to Internet: 234266
Total ASes present in the Internet Routing Table: 45348
Prefixes per ASN: 10.32
Origin-only ASes present in the Internet Routing Table: 35425
Origin ASes announcing only one prefix: 16312
Transit ASes present in the Internet Routing Table: 5763
Transit-only ASes present in the Internet Routing Table: 148
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 30
Max AS path prepend of ASN ( 59482) 25
Prefixes from unregistered ASNs in the Routing Table: 1000
Unregistered ASNs in the Routing Table: 294
Number of 32-bit ASNs allocated by the RIRs: 5359
Number of 32-bit ASNs visible in the Routing Table: 4160
Prefixes from 32-bit ASNs in the Routing Table: 12996
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 1087
Number of addresses announced to Internet: 2654411836
Equivalent to 158 /8s, 55 /16s and 28 /24s
Percentage of available address space announced: 71.7
Percentage of allocated address space announced: 71.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.2
Total number of prefixes smaller than registry allocations: 162747

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

Prefixes being announced by APNIC Region ASes: 109557
Total APNIC prefixes after maximum aggregation: 33273
APNIC Deaggregation factor: 3.29
Prefixes being announced from the APNIC address blocks: 111787
Unique aggregates announced from the APNIC address blocks: 47511
APNIC Region origin ASes present in the Internet Routing Table: 4844
APNIC Prefixes per ASN: 23.08
APNIC Region origin ASes announcing only one prefix: 1232
APNIC Region transit ASes present in the Internet Routing Table: 820
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: 745
Number of APNIC addresses announced to Internet: 729677372
Equivalent to 43 /8s, 125 /16s and 254 /24s
Percentage of available APNIC address space announced: 85.3

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: 161745
Total ARIN prefixes after maximum aggregation: 81156
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 162588
Unique aggregates announced from the ARIN address blocks: 75955
ARIN Region origin ASes present in the Internet Routing Table: 15871
ARIN Prefixes per ASN: 10.24
ARIN Region origin ASes announcing only one prefix: 6009
ARIN Region transit ASes present in the Internet Routing Table: 1611
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 36
Number of ARIN addresses announced to Internet: 1073147904
Equivalent to 63 /8s, 246 /16s and 240 /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: 118827
Total RIPE prefixes after maximum aggregation: 60896
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 122596
Unique aggregates announced from the RIPE address blocks: 78837
RIPE Region origin ASes present in the Internet Routing Table: 17502
RIPE Prefixes per ASN: 7.00
RIPE Region origin ASes announcing only one prefix: 8310
RIPE Region transit ASes present in the Internet Routing Table: 2756
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2481
Number of RIPE addresses announced to Internet: 656697856
Equivalent to 39 /8s, 36 /16s and 106 /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, 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: 52576
Total LACNIC prefixes after maximum aggregation: 9809
LACNIC Deaggregation factor: 5.36
Prefixes being announced from the LACNIC address blocks: 57731
Unique aggregates announced from the LACNIC address blocks: 27051
LACNIC Region origin ASes present in the Internet Routing Table: 2034
LACNIC Prefixes per ASN: 28.38
LACNIC Region origin ASes announcing only one prefix: 557
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: 892
Number of LACNIC addresses announced to Internet: 143020800
Equivalent to 8 /8s, 134 /16s and 83 /24s
Percentage of available LACNIC address space announced: 85.2

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: 11724
Total AfriNIC prefixes after maximum aggregation: 2602
AfriNIC Deaggregation factor: 4.51
Prefixes being announced from the AfriNIC address blocks: 12343
Unique aggregates announced from the AfriNIC address blocks: 4038
AfriNIC Region origin ASes present in the Internet Routing Table: 683
AfriNIC Prefixes per ASN: 18.07
AfriNIC Region origin ASes announcing only one prefix: 204
AfriNIC Region transit ASes present in the Internet Routing Table: 133
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: 6
Number of AfriNIC addresses announced to Internet: 48068864
Equivalent to 2 /8s, 221 /16s and 121 /24s
Percentage of available AfriNIC address space announced: 47.8

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 2712 902 88 PT TELEKOMUNIKASI INDONESIA
4766 2135 11550 641 Korea Telecom (KIX)
7545 2104 319 110 TPG Internet Pty Ltd
4755 1789 392 190 TATA Communications formerly
9829 1542 1245 45 BSNL National Internet Backbo
9583 1242 94 508 Sify Limited
9498 1216 309 74 BHARTI Airtel Ltd.
7552 1163 1080 13 Vietel Corporation
24560 1096 380 163 Bharti Airtel Ltd., Telemedia
4808 1041 1950 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 3049 3688 54 BellSouth.net Inc.
22773 2202 2939 139 Cox Communications, Inc.
18566 2056 379 178 MegaPath Corporation
1785 2039 685 130 PaeTec Communications, Inc.
20115 1681 1653 606 Charter Communications
4323 1647 1114 418 Time Warner Telecom
701 1502 11146 780 MCI Communications Services,
30036 1382 311 583 Mediacom Communications Corp
7018 1330 17778 868 AT&T WorldNet Services
6983 1294 756 579 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 1909 544 17 OJSC "Vimpelcom"
34984 1363 244 223 TELLCOM ILETISIM HIZMETLERI A
20940 1141 422 864 Akamai Technologies European
31148 1005 45 19 FreeNet ISP
13188 894 99 48 TOV "Bank-Inform"
6849 861 356 30 JSC UKRTELECOM,
8551 787 370 41 Bezeq International
6830 778 2329 430 UPC Distribution Services
12479 680 798 55 Uni2 Autonomous System
35228 545 246 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 3416 1793 87 NET Servicos de Comunicao S.A
10620 2666 432 219 Telmex Colombia S.A.
7303 1728 1150 231 Telecom Argentina Stet-France
18881 1621 908 20 Global Village Telecom
8151 1345 2851 409 UniNet S.A. de C.V.
11830 866 364 15 Instituto Costarricense de El
27947 821 94 92 Telconet S.A
6147 813 373 27 Telefonica Del Peru
6503 789 434 63 AVANTEL, S.A.
7738 780 1498 36 Telecomunicacoes da Bahia 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 1840 112 5 Sudanese Mobile Telephone (ZA
24863 887 338 26 LINKdotNET AS number
6713 552 633 26 Itissalat Al-MAGHRIB
8452 419 956 9 TEDATA
24835 297 144 9 RAYA Telecom - Egypt
3741 256 921 214 The Internet Solution
36992 229 501 29 Etisalat MISR
29571 224 17 12 Ci Telecom Autonomous system
15706 221 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 3416 1793 87 NET Servicos de Comunicao S.A
6389 3049 3688 54 BellSouth.net Inc.
17974 2712 902 88 PT TELEKOMUNIKASI INDONESIA
10620 2666 432 219 Telmex Colombia S.A.
22773 2202 2939 139 Cox Communications, Inc.
4766 2135 11550 641 Korea Telecom (KIX)
7545 2104 319 110 TPG Internet Pty Ltd
18566 2056 379 178 MegaPath Corporation
1785 2039 685 130 PaeTec Communications, Inc.
8402 1909 544 17 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 3049 2995 BellSouth.net Inc.
17974 2712 2624 PT TELEKOMUNIKASI INDONESIA
10620 2666 2447 Telmex Colombia S.A.
22773 2202 2063 Cox Communications, Inc.
7545 2104 1994 TPG Internet Pty Ltd
1785 2039 1909 PaeTec Communications, Inc.
8402 1909 1892 OJSC "Vimpelcom"
18566 2056 1878 MegaPath Corporation
36998 1840 1835 Sudanese Mobile Telephone (ZA
18881 1621 1601 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.
23.91.160.0/19 36493 3757277 Canada Inc. (oa 295.c
23.91.160.0/22 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 /12:254
/13:474 /14:925 /15:1635 /16:12845 /17:6752 /18:11177
/19:23015 /20:32774 /21:35537 /22:49823 /23:43641 /24:248904
/25:44 /26:34 /27:51 /28:37 /29:29 /30:31
/31:0 /32:0

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

ASN No of nets Total ann. Description
18566 2010 2056 MegaPath Corporation
36998 1805 1840 Sudanese Mobile Telephone (ZA
6389 1704 3049 BellSouth.net Inc.
8402 1575 1909 OJSC "Vimpelcom"
22773 1461 2202 Cox Communications, Inc.
30036 1228 1382 Mediacom Communications Corp
11492 1193 1231 Cable One
1785 1086 2039 PaeTec Communications, Inc.
6983 1035 1294 ITC^Deltacom
22561 965 1242 Digital Teleport, Inc

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

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

1:896 2:828 3:3 4:17 5:1023 6:21
8:617 12:1880 13:3 14:877 15:11 16:3
17:15 18:19 20:21 23:559 24:1745 27:1640
31:1441 32:44 33:2 34:5 36:86 37:1924
38:914 39:5 40:182 41:3224 42:272 44:14
46:2021 47:10 49:689 50:835 52:12 54:43
55:7 56:4 57:26 58:1108 59:572 60:379
61:1452 62:1236 63:1975 64:4325 65:2338 66:4149
67:2115 68:1107 69:3277 70:874 71:489 72:2038
74:2567 75:325 76:307 77:1159 78:1050 79:672
80:1300 81:1039 82:646 83:660 84:585 85:1256
86:383 87:1026 88:559 89:1551 90:150 91:5666
92:602 93:1608 94:2067 95:1612 96:512 97:350
98:1037 99:41 100:32 101:400 103:3601 105:527
106:140 107:217 108:534 109:1972 110:961 111:1111
112:588 113:808 114:743 115:1041 116:1017 117:810
118:1182 119:1267 120:363 121:751 122:1840 123:1263
124:1365 125:1462 128:645 129:219 130:336 131:653
132:349 133:158 134:548 135:72 136:276 137:245
138:346 139:174 140:170 141:330 142:533 143:396
144:489 145:90 146:516 147:399 148:712 149:368
150:139 151:653 152:411 153:205 154:52 155:490
156:291 157:370 158:280 159:691 160:361 161:455
162:855 163:202 164:629 165:581 166:260 167:635
168:1037 169:124 170:1117 171:185 172:27 173:1586
174:689 175:520 176:1319 177:2481 178:1953 179:296
180:1611 181:873 182:1383 183:466 184:658 185:1027
186:2632 187:1473 188:1871 189:1262 190:7292 192:6984
193:5418 194:4035 195:3362 196:1336 197:1038 198:4705
199:5450 200:6051 201:2517 202:8878 203:8943 204:4463
205:2624 206:2745 207:2767 208:4004 209:3642 210:2948
211:1562 212:2153 213:1972 214:894 215:91 216:5401
217:1691 218:626 219:318 220:1273 221:579 222:326
223:545

End of report
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